How to cut a large foam across. Device

10th January 2023

Than and how to cut foams at home: review of methods and stages

Engaged in assembling kitchen stools, I thought why not make sitting soft. But in order to create such a kind of upholstery, I faced the question of how to cut foams very exactly at home. Indeed, for the finish covering of the seat, you need to be able to correctly cut the fragment in accordance with the size. In this post I will tell in detail about the process.

Furniture manufacturers use special machines. You can cut polyurethane foam of any thickness, with a perfectly flat seam and accurately observing the size.

Naturally, these options are not entirely suitable for home: especially when you need to cut a couple of sheets to restore furniture and never do it again.

In such cases, it is recommended to use the so.called “loaf” (with zazubins on the blade). Its shape and length allows you to make an even section of thick polyurethane foam. It will have to be cut for a long time, but as a “one.time action” the method is quite suitable.

Please note: in no case do not listen to the advice of the “craftsmen” and do not cut the foam rubber with a wire (tungsten or nichrome). Heating foams leads to the release of phosgen. toxic gas. It is extremely dangerous to inhale it in a closed room.

Dismantling the riser

It is necessary to follow the rules when separating the vertical sewage pipe:

Management services are notified, permit for repair work is issued;
Users of the riser living above along the floor are notified;
Repair operations are carried out.

The presence of a compensator allows you to shift the product in one direction or another up to 10 cm. It must be remembered that the vertical design has a certain mass. Therefore, it needs to be fixed.

The joints of the joints are processed with machine oil. When performing rotational-setting movements, the part is removed from the overall structure. The absence of a compensator forces to resort to radical methods. to cut the fan pipe.

PVC plastic sewer pipes are processed by most locksmith tools:

Mechanized device. angular grinder, saber saw.

When carrying out work, it is required to pay attention to the presence of a number of other communications elements:

The compounds of sewer pipes that have served 10 years or more can “grab”, “grow” to each other. Help in such cases a number of recommendations;

Processing the junction of the WD-40 lubricant;
wrap sandpaper around the pipe; make rotational movements through it. hands will not slip, circular effort will increase;
If the product is scrapped, then it is necessary to make a through hole across the part; By inserting a tube or a metal rod, we get a lever;
Apply a “barbaric” dismantling method. cut the pipe into pieces, break into pieces.

Methods for separation of PVC pipes used to arrange an external highway, exactly the same. But, it is necessary to determine the place of damage and perform excavation work.

How and what methods of unlocking pipes. choose the owner of the housing or invited specialists. The main thing is to determine the feasibility of a particular way of dismantling faulty details.

Well, something, and there was a lot of cast iron in the Soviet Union! All technologies were developed taking into account this material. So in the laying of sewage, Chugun is still very popular. Of course, cast iron has many very significant advantages. it withstands heavy loads, which allows you to collect risers on many floors, it is durable, can fulfill its function in raw or cold rooms for decades, the paint lies well on the cast.iron pipe, that is, it can be beautifully entered In design. In a word, a sewer pipe made of cast iron is a thorough, durable thing. But in this thoroughness lies its main drawback. To disassemble, if necessary, part of such a pipeline is very difficult. And this is sometimes an acute need. For example, you needed an additional discharge or the existing discharge has become unusable. What to do?

Best. when a professional is performed, a master of his craft. In this case, you can be sure of the quality and efficiency of the work done. But this option is not always possible. Often plumbing should wait for weeks, and their prices, to put it mildly, are inflated. It happens that this “master” has no experience in such works. Not all those who wears the plumbing of the plumbing are such, are such.

How to carefully cut off and glue furniture foam at home

Foam. universal material. It is used in many large industries and in needlework. Differs in a porous structure, elasticity, softness and attractive cost. When working with Furniture Furniture in domestic craftsmen, especially those who did not use it before, two questions arise: how to carefully cut and firmly glue the details from this material among themselves. The secrets of how to do this correctly, quickly and reliably shared the masters of Vinyl Text.

How to custom cut foam in 5 easy steps!

To cut evenly and without a bully foam furniture for a sofa, chair, ottoman or armchairs, stock up:

A sharp knife: stationery or for cutting linoleum;
marker or felt.tip pen;
thick cardboard, plywood or a piece of board under the base;
wooden rail or ordinary ruler, pattern (for curved cuts).
Select a place for laying out a sheet of foam and put a thick cardboard or a piece of board under the material so that when cutting, do not spoil the base (floor, countertop);
Make a pitch or marker with a felt.tip pen or marker and connect them using a rail or ruler. For a cut under the radius, use a template or pattern;
Take the knife and, holding it strictly vertically, with a strong, confident movement, spend on marking. Do not use the ruler when cutting, since it will put pressure on the foam rubber under the weight of the hand, crush it, and the cut will eventually turn out to be uneven;
If the foam rubber does not cut through to the end, spread your fingers with the “processed” site and bring the work to the end to the end. When the bullying appears, break the blade of the clerical knife or replace it.

Than and how to glue foam

Contact adhesives are suitable for working with foam rubber on butadiene-stirol, polyurethane, non-reprevable basis. The most popular and budgetary of them are: BF-6, glue 88, Rapid-100. They are safe for health (do not exude toxins), easy to use and reliably fasten the foam parts among themselves.

Lubricate the edges of the prepared parts with glue using a roller, brush or spray gun. Economy option. a gun, the consumption of the composition is about 70 grams./cm.sq.;
Wash the time specified in the instructions;
Connect the details, pressing tightly or pressing the press, until a reliable, even, elastic seam is formed.

Vinyl Tex company: Furniture foam for a sofa and other upholstered furniture, as well as upholstery materials, accessories to retail, wholesale and delivery to all regions that pay attention

Foamen is not just a type of plastic, but a plastic with the addition of various kinds of chemical impurities, toxic polymers that give this material porosity.

At room temperatures, foam rubber is absolutely harmless to a person, but you only have to undergo a heating material, as it immediately becomes toxic. Therefore, it is impossible to use foaming at home, as some amateurs, heated metal thread or wire advise.

The foamed sheets are so cut in production, but workers must use protective masks, and powerful ventilation is mounted in the production workshop where this operation takes place.

Ordinary household scissors are also not assistants for cutting foam. The edges of the material, cut in this way, lose their porous structure.

Cooking tools for cutting foam

So, how to cut foams at home, so that the edges are as smooth and close to what is obtained during production cutting? To do this, you will need to prepare the following tools and consumables:

Actually, the foam itself, which we are going to cut.
Lining for foam rubber we will cut. It’s clear that if we decompose it on linoleum or on the floor of the apartment, these very materials will end, since they will all be in scratches from the knife. In the role of lining, it is best to use a sheet of plywood with a cardboard laid on it, so that the tip of the knife does not dull about the hard plywood. Cardboard can be used by dismissing any cardboard box of a suitable size.
It is advisable to have a knife from the category of construction. They are also called knives for cutting linoleum. He includes a whole clip of removable blades, which in the event of a gear can be changed. It is better to use a branded European rather than a Chinese knife, since the steel of the “Chinese” is low.quality, and such a blade will dull after the first wiring.

Drawing up a project

For example, we have determined that a double.sized shredder with a low rotor rotation frequency is suitable for production tasks.

His project necessarily includes:

engine selection by power;
calculation of the gear ratio of the gearbox and the choice of the factory model;
determination of the diameter and length of the rotors (according to the size of the loading window);
calculation of shafts for strength;
The choice of bearing supports.

For this you will need the textbook “Parts of cars” for universities. You will also have to look into GOSTs according to threaded connections, reference books on gearboxes, bearings, couplings and other assembly units.

This must be taken into account when you assign the dimensions of the groove.

After calculations, it is necessary to make a layout of nodes on a millimeter paper or in an AutoCAD type editor, determine the dimensions of corps parts and beds.

This task must be approached responsibly so as not to miss anything. Sometimes the protruding head of the “unaccounted” bolt leads to the fact that the car has to be redone. After that, a detail is made. the drawing of each part separately.

How to carefully cut off and glue furniture foam at home

Foam. universal material. It is used in many large industries and in needlework. Differs in a porous structure, elasticity, softness and attractive cost. When working with Furniture Furniture in domestic craftsmen, especially those who did not use it before, two questions arise: how to carefully cut and firmly glue the details from this material among themselves. The secrets of how to do this correctly, quickly and reliably shared this.

To cut evenly and without a bully foam furniture for a sofa, chair, ottoman or armchairs, stock up:

A sharp knife: stationery or for cutting linoleum;
marker or felt.tip pen;
thick cardboard, plywood or a piece of board under the base;
wooden rail or ordinary ruler, pattern (for curved cuts).
Select a place for laying out a sheet of foam and put a thick cardboard or a piece of board under the material so that when cutting, do not spoil the base (floor, countertop);
Make a pitch or marker with a felt.tip pen or marker and connect them using a rail or ruler. For a cut under the radius, use a template or pattern;
Take the knife and, holding it strictly vertically, with a strong, confident movement, spend on marking. Do not use the ruler when cutting, since it will put pressure on the foam rubber under the weight of the hand, crush it, and the cut will eventually turn out to be uneven;
If the foam rubber does not cut through to the end, spread your fingers with the “processed” site and bring the work to the end to the end. When the bullying appears, break the blade of the clerical knife or replace it.

Lubricate the edges of the prepared parts with glue using a roller, brush or spray gun. Economy option. a gun, the consumption of the composition is about 70 grams./cm.sq.;
Wash the time specified in the instructions;
Connect the details, pressing tightly or pressing the press, until a reliable, even, elastic seam is formed.

Furniture foam for a sofa and other upholstered furniture, as well as upholstery materials, accessories to retail, wholesale and delivery to all regions and how to cut thick foam at home?

Poliuretan foam. modern material of synthetic origin. At home, cutting foam rubber is quite easy: you only need to outline a fishing line for a trimmer along which the canvas will be cut, with a knife with a sharp blade and cut the canvas to the end, slightly holding the edges with the second hand.

How to cut foams if the thickness of the canvas is 10 mm or more? If you adhere to the rules for cutting foam, then you can achieve an even edge of the material even at home.

How to cut foam rubber?

There is no need to buy a specialized saw for polyurethane foam, which is used in stores or in small industries to cut a sheet of foam at home.

It is enough to use a sharp knife, you can take a knife with a zazubins with which a loaf is cut. Thanks to its shape and length, the material is even. If there is no such knife, then any other well.sharpened knife is suitable. If you have a construction knife with a advanced blade, then it is also suitable for cutting foam.

The secret of the even edge of the material is a knife tilt during cutting, if you need to make a flat fishing line for a trimmer. Когда требуется фигурная резка поролона, угол наклона следует увеличить. This will avoid beads at the edges.

Stages of cutting foam

To cut the canvas PPU does not require expensive tools or special conditions. In order to cut the canvas at home, it is necessary to stock up on a sheet of cardboard and plywood, a ruler or curly pattern (if the fishing line is uneven), a marker or construction tape, as well as a sharp knife. The whole process consists of simple stages:

You need to choose a flat surface where you will cut the foam.
Put the plywood and cardboard on the surface of the floor or table so as not to damage it with a knife while cutting the material.
Using a line with a marker or construction tape, note a fishing line for a trimmer of the alleged cut. Scotch tape is suitable for a flat line, and for a figure. a marker.
The ruler can be held by the material while cutting the sheet into parts. Do not press too much on the ruler, as this can lead to deformation of the canvas, and the edge in the site of the cut will turn out to be uneven.
You can use two slats made of wood, when it comes to cutting on a flat line. Between the strips should be left for the cut. This will fix the sheet.
Cut the canvas with a strong and smooth movement of the knife. If the first time it does not work out to cut a thick material, then it is necessary to repeat the procedure by inserting the knife exactly into the fishing line for the trimmer of the already made section. You can first make a cut to half the thickness, and then continue cutting until the end.
Figure cutting of thick material with a knife is more difficult, so you need to keep the knife at a large angle on yourself, and lead a knife more carefully.

To make the incision even, you need to buy high quality foam. Our store presents material from the best manufacturers. The assortment has sheets of different thicknesses and density. To choose and buy a suitable foam for your task, call our store by phone indicated on the site.

How to cut foams

Hello everyone, just recently I had a problem, how to cut off the foam rubber evenly, and at home. For all the time of passion for carpentry, I have never encountered foam rubber, it is understandable, I usually work with woods.

Since cut off foam? And what you need to do. The first thing that came to my mind was some kind of expensive machine, which is simply not realistic to buy, since I once cut a foam, but for a very long time, and I didn’t really succeed.

At work, in the next workshop, they are engaged in upholstered furniture, and somehow, at lunchtime, I met a guy who is engaged in this Street. During the conversation, I found out that in order to cut off foam, they use the knife, and they have no expensive equipment for this. We talked and he told me how to cut off foam gently at home.

To cut off foam rubber will need the following

A sharp knife, best is the chancellery or for cutting linoleum
A felt.tip pen or a marker with a thin rod
Cardboard or something else for the base
Good ruler

So, how to cut off foam rubber, first using a marker, make the cut line on foam. If these are straight lines, it is better to use the ruler, if you should have a cut under the radius, it is better to use some kind of pattern, template or other device in order to draw exactly the radius.

Next, to cut off foam, it will be necessary to prepare the base. As a basis, many advise you to use a plywood or a wood-piece plate. I would not advise you, because when you cut a foam rubberle with a knife, the tip of the knife will dull about this plywood. Therefore, for the ground, I advise you to use cardboard. By the way, I forgot to say why the base is needed, the base serves so that the floor or another base does not spoil, on which you are going to cut off the foam rubber, well, and as you understood for protecting the tip of the knife.

Well, the last point how to cut off foam, this is the process of cutting. To do this, take a very sharp knife. Your kitchen knife is clearly not suitable here, since his blade is thicker. Therefore, I advise you to use a stationery knife, or a construction knife, like those that cut linoleum. It is very important that the blade and the tip are sharp, otherwise you can’t get a foam rubber.

Well, then go to work, spend exactly along the line with a knife, preferably without using the stop, since the emphasis will be pressed on foam, thereby creating a load in it, and the knife will be poorly cut. If you doubt your abilities, it is better to practice a little on another piece of foam rubber so as not to spoil the workpiece.

Anyway, foam rubber is usually cut in order to sheathe up her upholstered furniture. Therefore, you can not do perfectly evenly, and you can’t get 100% exactly cut off exactly. The fabric will still be on top of the foam, which will smooth out all the irregularities and errors of the cut.

Here I am an article, it may be useful for those who have thought about cutting off foam at home with your own hands. I will be glad to Комментарии и мнения владельцев, tell us what you think about it, and if there is experience, share it.

Often you can find advice that foam rubber should be cut with a heated nichrome wire connected to a voltage of 12 V, as well as a heated soldering iron.

How to cut smoothly thick foam at home?

However, at home, this is not recommended, since foam rubber distinguishes harmful substances into the air, which, even in small doses, are highly toxic and affect the respiratory and nervous systems of a person. We will not risk health, especially since foam rubber is well cut by an ordinary knife.

Mark a piece of foam rubber with a marker or felt.tip pen, while putting small marks. Combine the tags together in a ruler (you can use a flat bar).

Under the place of the future cut, put a piece of boards, plywood, wood-boring plate or just dense cardboard. This will protect the floor from damage during cutting.

Cutting foam is recommended without a ruler. Spit with a strong and accurate movement with a knife according to the marking you made. At the same time, hold the knife vertically.

If the foam rubber does not cut through to the end, spread the cut part with your fingers and cut the foam to the end with the second reeza.

If the cutting is obtained, this means that the knife blade has become dull. Break the tip of the blade or replace it with a new.

Curved cuts are made according to exactly the same technology. Mark the pattern, then cut the foam along the line, making sure that the knife does not fill up, but is located vertically. The quality of the cut will not be perfect, but it will be quite fit if you need to cut out a pillow for upholstered furniture, which will then be covered with fabric.

Pre.soaked thin foam is much easier to cut with scissors.

How to cut foams?

It would seem that the question? Take it and cut. There are no problems with a material up to 5 cm thick.

Than cutting exactly thick foam?

But how to make an even section of a 10-centimeter or even thicker foam?

In the vastness of Internet forums, advisers are actively offering pretty bold ways. For example, heated tungsten or nichrome wire. over, the craftsmen are advised by connecting the wire to electricity with a voltage of 12 V. Choose, they say, the temperature so that it does not burn, but cut. Here right here. Stop! Porolon-Optom store.RU considers it his duty to warn that this method of cutting polyurethane foam materials, and especially at home, is dangerous to human health. The chemical reaction between heated wire and foam rubber is accompanied. With normal contact of foam rubber with fire, this will not happen, the material is not fuel and environmentally safe. But chemical experiments of self.taught that have not read the textbook on chemistry should not become an example to follow.

How to cut smoothly thick foam at home?

Mark a piece of foam rubber with a marker or felt.tip pen, while putting small marks. Combine the tags together in a ruler (you can use a flat bar).

Under the place of the future cut, put a piece of boards, plywood, wood-boring plate or just dense cardboard. This will protect the floor from damage during cutting.

Cutting foam is recommended without a ruler. Spit with a strong and accurate movement with a knife according to the marking you made. At the same time, hold the knife vertically.

If the foam rubber does not cut through to the end, spread the cut part with your fingers and cut the foam to the end with the second reeza.

If the cutting is obtained, this means that the knife blade has become dull. Break the tip of the blade or replace it with a new.

Pre.soaked thin foam is much easier to cut with scissors.

How to cut foams?

It would seem that the question? Take it and cut. There are no problems with a material up to 5 cm thick.

But how to make an even section of a 10-centimeter or even thicker foam?

In the vastness of Internet forums, advisers are actively offering pretty bold ways. For example, heated tungsten or nichrome wire. over, the craftsmen are advised by connecting the wire to electricity with a voltage of 12 V. Choose, they say, the temperature so that it does not burn, but cut. Here right here. Stop! Porolon-Optom store.RU considers it his duty to warn that this method of cutting polyurethane foam materials, and especially at home, is dangerous to human health. The chemical reaction between heated wire and foam rubber is accompanied. With normal contact of foam rubber with fire, this will not happen, the material is not fuel and environmentally safe. But chemical experiments of self.taught that have not read the textbook on chemistry should not become an example to follow.

There are special knives for cutting foam. The secret of obtaining a flat cut in such porous materials as spongy rubber or polyurethane foam, in very thin and sharp blades and special movements that these blades make. In electrical goods stores, you can purchase an electronics for cutting foam. Devices look usually like this.

On an industrial scale, these are already entire electric machines. Here you can, as they say, write out the most bizarre forms and lines. To fix the sheet or cube of foam rubber in industrial installations, vacuum is used.

The machines most often have a strip knife for cutting foam.

A very thin blade and a special location of the zabrinki, as well as a stable continuous force that can be obtained from the machine, allow you to get an even smooth cut.

However, master-taught masters are not behind. On one of the forums for the so.called dummies, the luminaries demonstrate a wonderful alternative to the electronics for foam.

A device of two aluminum rails and a sharply sharpened knife can save the situation when it comes to one or two pieces of foam rubber, which must be cut out at home. True, the knife will not need the usual, with a serrey sharpening. This is a special, wavy type of sharpening, which is often used by hunters. However, and culinary knives for cutting hot loaves have a similar look. Such a artisanal invention is not at all scary to try to do it independently, at least it will not threaten health problems. And who knows, maybe you will become the next innovator who will show the world the next hypostasis of the most popular material of the 21st century?

If you want to save your time and effort and get foam crumbs or a cut of foam rubber, you can contact us by phone 7 (495) 978-33-44. Always in stock at affordable prices!

Cutting instructions

If you follow the instructions in everything, your foam rubber will be delivered perfectly. So, let’s go:

Since we still decided to cut the foam rubber on the lining, and not on linoleum or parquet, first we put it. First plywood, then a sheet of cardboard.
Lay the foam layer on top that we want to cut. We make sure that the fishing line for the trimmer of the future section is on the lining.
We take a ruler and, in accordance with the specified dimensions, draw a fishing line for a trimmer along which the future incision will pass.
We remove the ruler. If we cut along the ruler and pressing it at the same time, then the section will turn out even, but the edge will be as pressed as in the case of scissors. If you decide to cut it on a ruler, then in no case do not press on it.

Good advice on how to cut foams, so that the edge is perfect. If you feel that the knife began to make peculiar hooks during the wiring, it means that in some place the blade was dull and, without cutting out, begins to tear the foam rubber, forming a strip of foam grouse. In this case, you should immediately change the blade to a new. It is best to do this without waiting for this to happen. Made five to six wiring, changed the blade. They can then be used again for any other purposes, but for cutting foams they will already be unequal. Simple cutting of foams with a knife is clearly given in this video.

About curly cutting

How to cut foamy on curved lines evenly? Everything is the same as in the case of a direct sharp. The only thing is that the angle of inclination of the knife should be increased to the maximum, or the cut parts will be slightly “mowed” at the edges, as if you were non.validly kept the plane of the knife blade with respect to the plane of foam. That’s all. Nothing complicated. The main thing is to have patience and a branded knife, and you will succeed in the edges of the cuts as factory.

Foamen. modern material that distinguishes softness, convenience, hypoallergenicity. It is used as a filler for mattresses, furniture, is made of different densities and thicknesses.

Now foaming can be bought in specialized stores. There they will help you cut it to the desired size. But if you decide to do this at home, you need to know several rules.

The process of dismantling the pipes connected by cement and cabin

When talking about how to disassemble the old cast.iron sewer connected by cement, it is worth noting that the process is not much different from the above, but is safer.

This is explained by the fact that the sulfur produces carbon monoxide during melting.

And everything starts with the cut of a certain part of the cast.iron pipe, for which you need to retreat from the separation sites by about 30 cm.

Frozen cement is knocked down with a hammer that needs to be beaten on a screwdriver inserted into the hole.

Dismantling the connection with cement and cabin

It is important to know that you should not rush in this matter, because you can damage the bell. After breaking cement in the joints:

After breaking cement in the joints:

you should try to shake the main pipe. If you are interested in how to disassemble the cast.iron sewer without warming up, then know that the removal is allowed;
If without a heap it is not possible to shake the pipe, then severe heating or a special key will help. For example, for pipes with a diameter of 50 mm you need a tool, but for the tee one will need another pipe.

Replacing water and sewer pipes is usually necessary with partial or complete wear of the system. And if it is decided to carry out technical work without the participation of professionals, then it is necessary to prepare in advance and know how to independently dismantle the sewage system.

Do.it.yourself repair work is dangerous in that even when replacing the worn part, there is a chance that the leaks will appear again. As a result, if sewer pipes are not trustworthy, it is better to completely change the entire system. But before that, it is necessary to dismantle the sewer.

By replacing the pipes, it is possible to completely change the system of their location, especially since today the materials allow this to do this without any problems. Modern materials, for example, are more reliable, strong and durable pipes than cast.iron, and most importantly, sewer pipes are mounted quite quickly and relatively simply.

Replacing the entire riser, more appropriate will change all the plumbing and the bounces on the equipment. In addition, if you can change the entire track of the old collector. In this case, it is necessary to clearly observe the correctness of the slope and the diameter of the pipes.

What foam is needed for the sofa

The first thing that is important to know for the choice of material is the level of stiffness. This determines for which part of the furniture it will be used. Soft and air PPU withstands less weight, so it is used in the stuffing of head restraints, armrests and backs. The seat will require a more rigid foam, which serves for a long time and holds the form well.

What thickness of foam rubber is needed for the sofa, is determined by the use of upholstered furniture. If you spend a lot of time on the couch and/or sleep, you need to stuff with a thickness of 4 cm. The optimal density indicator reaches 30 kg per 1 cubic meter.m. In addition, sleep requires an elastic filler of increased comfort.

Optimal brands (types) of foaming for the sofa is a comfortable Standard ST, a more hard EL for furniture experiencing high loads, the hardest HL, very soft HS for the back of the armrests, and the most comfortable HR VIP material is HR.

25 (80 kg of load in the couch, 100 kg in the mattress);
28 (90 kg of load in the couch, 120 kg in the mattress);
30 (100 kg of load in the couch, 120 kg in the mattress);
35 (110 kg of load in the couch, 150 kg in the mattress);
40 (120 kg of load in the couch, 180 kg in the mattress);
55 (130 kg of load in the couch, 150 kg in the mattress).

Choose the density of the PPU to replace the filler, guided by the planned load.

Dismantling when connecting pipes gray

Any work must start with precautions.

To exclude emergency situations, the following actions must be performed:

turn off the flow of water on the riser;
disconnect the hose leading to the toilet barrel;
completely remove the toilet, for this it is necessary to unscrew the bolts that attach it to the floor;
Take out of the bathroom all the equipment interfering during the work (washing machine, bidet, sink).

How to Cut Polystyrene Foam

Pipes that are far from the riser can simply be broken with a hammer. All designs leading to it are deleted. Work on the dismantling of pipes sealed with gray are difficult due to its properties.

After time, it becomes very durable, like a stone, tightly fastening the pipes with a riser. Digging lines are easily destroyed, in a place near the riser, you need to act more carefully.

Important! Since careless movements can lead to damage to the tee. In this case, you will have to replace the site of the riser, and this is a very laborious process.

How to make out the old cast.iron sewer in the absence of information, how it was mounted? To determine the connection method, you need to bring a soldering lamp to the pipe.

If the substance begins to melt and an unpleasant odor will go, then the pipeline is built using sulfur.

To destroy it, it is necessary to perform the following actions:

choose a pipe at a considerable distance from the riser and start breaking it with a hammer. Since cast iron is fragile material, it is easily amenable to mechanical damage. It is recommended to use a hammer with a polymer or plastic base. Metal nozzles can lead to a suction of the pipeline. With a strong blow, part of the cast.iron pipe remains inside the system;
Hammer actions are performed before the discovery of the cross.cutting of the product leading to the riser. Then it must be shaken. It will be easier to do if you leave a small piece of pipe;
Prepare a soldering lamp or gas burner. Next, put on protective equipment, protect household items and you can start work. At this stage, dismantling is carried out by two masters. One specialist warms the sulfur, gradually melting it, the other at this time shakes the pipe. To avoid a burn, work must be carried out in gloves;
After the work performed, when the substances used for connection are practically no left, you can get the cross from the cast.iron riser. In the process of extracting products, you should be neat. Especially when removing pipes that have a connection with the tee;

In this case, part of the product is cut off with a corner grinder, leaving a segment of 10 cm long. It is carefully loosened and carefully removed from the bell. If there is no angle grinding machine, then you can use a hacksaw for metal, but such a tool will significantly tighten the dismantling.

Cast iron sewage can be very durable. If it is impossible to extract the pipe, it is necessary to make cuts around it every 20 mm. After that, she easily gets from the riser.

If the system could not be disassembled and you need to connect the pipeline with polymer pipes, then you can use the transition couplings for their fastening.

The work is related to the danger to human health, since when heated by the compounds, sulfur gas is released. A person performing the dismantling must take precautions: put on a gas mask and ensure constant ventilation of the room.

Important! Destruction of the sewage system can be delayed for several hours, so it is important to observe precautions. Since the work is associated with open fire, it is also necessary to protect furniture or other decor elements in the bathroom using a special screen from fire.

Determine the length of the nichrome thread

We connect the network cord to the transformer. The length of the output wires, if necessary, can be increased.

The author attaches one contact to one edge of the structure, the other will be sliding, that is, he will freely move along the nichrome thread.

Changing the distance between the contacts, we change the resistance and, accordingly, the temperature of the heating of the nichrome thread.

It is necessary to choose such a temperature so that the thread cuts foams well. In this case, the most optimal distance between contacts is approximately 9-10 cm. From these sizes we will be repelled in the manufacture of the machine.

Sources:

https://vaidsys.ru/rezka/kak-rezat-porolon.html
https://oblavka.ru/blog/kak-akkuratno-otrezat-i-skleit-mebelnyj-porolon-v-domashnih-usloviyah.html
https://nkolip.ru/svoimi-rukami/kak-sdelat-porolon/
https://101benzopila.ru/kak-rezat-porolon-v-domasnih-usloviah/
https://veloelektro.ru/kak-rezat-porolon-v-domashnih-usloviyah.html
https://stroyvolga.ru/%D0%BA%D0%B0%D0%BA-%D1%80%D0%B5%D0%B7%D0%B0%D1%82%D1%8C-%D0%BF%D0%BE%D1%80%D0%BE%D0%BB%D0%BE%D0%BD/
https://stroi-obzor.ru/strojka/kak-rovno-otrezat-tolstyj-porolon/
https://weldingmaterials.ru/rezka/kak-rezat-porolon.html
https://stankoinstrumentiosnastka.ru/rezka/kak-rezat-porolon.html

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