Cutting foam rubber on crumbs Che. Than cutting exactly thick foam?

Removal waste processing in crumbs.

According to the current law on waste management since 2020, a solid fine is supposed to be used as secondary raw materials that can be used as secondary raw materials. Foam waste can also be processed. Elastic polyurethane was imported into the USSR from Scandinavia, produced. The name of the company began to be called porous polymer.

Have you ever thrown out old foam?

In recent years, new technologies for the processing of foam rubber has appeared. In the first place, the mechanical grinding of waste. Chemical methods are associated with the release of harmful components into the atmosphere. For energy regeneration, expensive stove equipment is necessary.

In large cities in recent years, announcements have appeared on the acceptance of the waste of gas.filled polyurethane foam from furniture industries, private individuals. Some find trips practical use, give the material a second life, reducing the volumes of foam rubber, improve the environmental situation. When buried at landfills, the polymer decomposes over 10 years, distinguishes harmful components that pollute the soil, water.

What relates to the waste of foam?

Varieties of foamed polyurethane foam, with a soft cellular structure, belong to one category of secondary raw materials. The automobile material is denser, but the chemical composition is identical to packaging materials, fillers of bedding, a soft layer of carpet coatings.

Where does the waste of foam rubber come from?

Furniture production is considered the main sources. Trim, non.fixed material is necessarily sent to processing or disposed of. Waste of soft and dense foams accept reception points, private organizations. Where to pass the scrap, you can find out in the search engine. There is also information about the cost of secondary resources.

The main source of polyurethane for secondary processing is used products, such as electrical household appliances, cars, bedding, the basics and lining of the carpet and upholstered furniture. Another significant source of processed polyurethane is industrial production waste.

Hazard Class

Foamen is assigned the 4th grade, the components of the material when the polymer decomposition has a slight effect on the ecology, the biosphere. The aggregate states of polyurethane foam and products from it should be treated as low.hazardous waste.

Cutting technology

First of all, it is necessary to take care of the availability of the necessary materials, tools and equipment. It is on the stage of preparation that the result will largely depend. Here’s what you need to independently cut foamed polyurethane at home.

Lining in the form of a sheet of plywood and cardboard. It is important to protect the flooring or the surface of the table on which the cutting will be performed. Cardboard in this case is necessary in order to prevent contact of the zone of a knife with solid material.

The main working tool, that is, a knife.

Ruler, roulette, and in situations with a figured harsh. a pattern of a certain form.

Marker for marking, along which an incision will be performed. By the way, in some cases, when working with large fragments, you can use the laser level.

To get the perfect cut with even edges and high.quality workpiece or product, it is recommended to follow certain simple rules. The algorithm itself will look as follows.

Equip a workplace by placing a plywood on it or any other dense and even material as a basis. In parallel, it is necessary to equip a cardboard substrate. At this stage, it is important to make sure that the fishing line for the trimmer of the future section will be located above the lining (preferably in the center).

Using a ruler and marker, mark and draw all the necessary lines.

Remove the ruler. In principle, you can cut foams and on it, that is, without marking with a marker. However, in this case, it is unlikely to avoid pressure on the tool, and the edges of the cut will be as deformed as when using scissors.

If an adjustable construction tool is used, then configure the length of the blade, taking into account the thickness of the workpiece.

Make the first shallow incision along the entire intended line.

Place the knife strictly according to the cut and perform the first full wiring. In this case, it is necessary to slightly grab both edges of the cut with a free hand.

Check the results of the work performed and the correspondence of the size, as well as the form.

Considering the features of the cutting of foam rubber, you should focus on the position of the knife blade. Some thematic publications states that the tool must be kept strictly vertically during the postings, that is, perpendicular to the plane of the cut material. However, experienced masters do not advise doing this and recommend a knife to tilt to themselves.

It is important to exclude the collapse of the plane to the left or right when performing wiring. Otherwise, the edge of the cut will turn out to be a trapezoidal.

An equally important point is that the first time it is unlikely that it is possible to cut even the thickest foam rubber. This is a common occurrence, and you should not worry in such situations for the result of work. It will be necessary to dilute the edges of the incision made to the sides and go with a knife again, while its tip on begins to scratch the fitted cardboard.

Useful tips

Many “experienced craftsmen” advise foaming to cut with string, or rather, warmed by nichrome wire, which is connected to a 12-volt power source. Another option is a soldering iron sharpened in a certain way. But, as practice shows, such recommendations are better to ignore.

The fact is that the material described remains harmless until it is exposed to thermal effects. The key point is that in its production, and specifically when foaming, certain impurities are introduced.

In a frozen state, they are absolutely safe. But as a result of heating, they instantly turn into a potent poison.

And even if you cut foams in a similar way on the street, there is still an increased risk of poisoning with toxic secretions. It is also important to consider that toxins will be a danger to both the master himself and for others. In conditions of production, hot nichrome threads are used. However, the implementation of such work provides for the mandatory availability of protective equipment for personnel, and often the operator is in a separate room with a high.quality ventilation system. Since it is difficult to ensure the necessary conditions at home, it is strongly recommended to apply the described cutting method.

In addition to all of the above, it is worth noting that the use of string is relevant most often for direct cuts. If we are talking about contouring, then it is unlikely that you can do without a knife.

On the other hand, craftsmen make stencils out of strings. But in any case, it is important to remember the toxicity of the heated foam rubber and the threat to health.

The next important point is associated with the use of scissors. If it is necessary to cut a relatively thin material, for example, making blanks for the repair of individual furniture, then the capabilities of this tool will be enough. But when working with a more or less thick material, certain problems are possible. And we are talking about breaking the foam structure by scissors along the contours of the sections. As a result, the edges almost always find themselves in depressed and, after the end of the operation, do not take their original form in full. It turns out that it is better to refuse the use of scissors.

In the process of cutting foamed polyurethane, it is important to control the edges. If there are suspicions regarding the sharpness of the blade, it is strongly recommended to replace it.

If the knife began to cling to the material during the wiring, it means that in some place its cutting edge swept away. It is better to replace the working element before the bullying begins to form. By the way, the blades can then be used to work with other materials. The ideal option is a replacement after every 5-6 warts.

Separately, it is worth paying attention to curly cutting foam. In principle, the algorithm of actions in situations with a rez on curved contours will be in almost everything is similar to cutting the material in straight lines. The key difference here is the location of the working tool. When creating curly blanks, it is recommended to keep the knife at the maximum angle to itself. Otherwise, as practice shows, the sections will turn out to be a little beveled, as with a strictly vertical position of the blade.

Summing up, it is worth noting that the described work with foamed polyurethane is quite simple. It is important to comply with elementary rules. As well as the key to the accuracy of the performance of operations and the quality of the resulting products (often the condition of cuts matters) will be the right choice of a knife and its acuteness. In addition, it is always important to remember safety precautions.

Stages of cutting foam

When all the materials are prepared, you can proceed to the cutting process:

• First you need to put on the table or floor plywood and cardboard so that they protect the working surface from scratches.
• Then, using the ruler, draw a fishing line for a cutting trimmer with a marker.
• You can use the line during cutting of the material if it is long.
• The blade of the construction knife must be set in the thickness of the material. The knife should be kept diagonally (with a slope to yourself) and make an incision on one side of the canvas.
• After that, insert a knife into the resulting section and confidently draw them along the already outlined line. In this case, it is necessary to hold the edges of the material on both sides so that the fishing line for the trimmer is flat, and do not break the fabric in those places where the knife did not cut it until the end.
• To cut the thick material, you need to push the cut area, draw a blade along the already intended line again. You will hear the sound of the contact of the metal with a cardboard, which will confirm that the material is completely cut, throughout the thickness.
• For curly cutting, PPU needs to draw a fishing line for a trimmer on the pattern on the material, and increase the angle of inclination of the knife to yourself.

The result depends on the quality of the knife and PPU. It should be durable and sharp. If the knife is poor.quality or stupid, then the edges of the canvas will be uneven. To buy durable foam rubber, contact our store by phone indicated on the site.

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.

What to look for

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.

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!

How to cut foams at home?

Phased plan:

• Make a felt.tip pen, by which you need to make a cut, and connect them along the ruler. If you need smooth crooked lines, then draw them on the pattern
• Under the place where you will make a cut, put a board, thick cardboard or plywood
• Cut the foam on the intended line strongly and slowly. Attention! The knife during cutting should be located vertically
• If the foam suddenly did not completely cut through, we advise you to push the cut and cut.

If irregularities and burrs begin to appear in the process of cutting, change the blade.

Innovations in the cutting of foam

As many readers know, foam rubber is used in many areas of human activity, as a very practical material that can be used not only for the manufacture of furniture, but also for insulation of garages, basements and pipes.

29.04.14 10:11 Text: Irina Zet

But, despite such popularity, this material is much more complicated than many people may seem, for example, foam rubber can be used in primary form, secondary or in the form of a crumb, which is usually used for inexpensive mattresses or for manufacturing Children’s soft toys. By the way, most likely, very many people were surprised to read the title, which means innovations, because what could be easier than just cut soft material? On the one hand, yes, but on the other hand, how to cut foams if a unique form is required, for example, under original perfumes?

It is worth saying that until recently, the entire foam rubber was cut using two ways, the first implied the use of a nichrome string, which previously heated, due to which this approach was called thermal cutting, the second forced the second to turn to the help of a saw or an abrasive thread, this method was called a mechanical mechanical. It would seem, why then did you need any way if, with the help of the aforementioned tools, cutting foams can be carried out at any corner and quickly? In fact, the answer is quite simple, even today, foam rubber is gaining more and more sectors, where the material begins to be used as an alternative to the expensive components, which led to the appearance of a laser cut.

If we talk about the advantages of this approach, then it is necessary to first note the greater accuracy, which is achieved due to the fact that the material does not experience any deformations during this process. Yes, and do not forget that the use of a laser engraver, which is tightly closed and equipped with a hood, creates the conditions for safe operation, since the aforementioned heated thread provokes the release of toxic substances into the air, which are released from foam rubber at a temperature of more than 100 degrees Celsius.

Well, finally it is worth saying that on the portal Porolon-Optom.ru you can always learn a huge variety of useful information regarding this material, and you can also order foaming of the highest quality in the amount that you need.

Removal waste processing in crumbs.

In this publication, a selection of equipment intended for the processing of foaming waste was made. General information of their characteristics is given.

Removal waste processing in crumbs.

Polymer waste grinders (crushers, shredders) are of two types: cutting (knife) and tearing (drum, rotary). Both types have their pros and cons of.

Drum crushers, they are also called shredras. These are grinders having one or more shafts with spikes or incisors, or assembly with mills. Intended mainly for processing solid polymers. For grinding foams, not all types of drums, but only having spikes or incisors with a variable step are suitable. Shafts with spikes, now practically do not, but the second option is widespread.

As a rule, such crushers are very bulky and powerful.

The choice of this type of chopper is determined by another factor. You can stuff pieces in the width of the drum in it. Below, video of the work of a one chopper. This crusher stands in the line for the production of secondary foam.

This type of crushers is most often chosen by manufacturers of foam and products from it. This is due to the fact that the waste after the contour cutting is very large in size.

The main supplier of crushers of this type of China and Europe (also China)

And Ukraine produce this type of crushers, but they are focused on processing waste from polypropylene and ABC plastics and have a not very suitable knife device. This type includes: AMD-200D, AMD-400D, IPR-200 IPR 450 and IRPS-150 in IRPS 400 (Ukraine). In short, there is a lot of fools. there is little sense.

The device of cutting (knife) crushers is much easier and therefore, the cost is lower than that of the previous type. Basically, it is a rotor with mobile chopping knives and several stationary knives installed on the inside of the cover of the grinding block.

Grinding goes to the extent until pieces of foam rubber can freely fly out through a calibrating grill. The size of the lattice cells can be from 10 to 40 mm. Knife crushers of foam rubber make a baby, in the total volume, more normalized in size, but it often contains quite a lot of fine foam heights. Not everyone likes this, but someone does not pay attention to it. The performance of such crushers, as well as that of the eager, can be from 10 to 400 kg./ hour. The main supplier of crushers of this type of China and Europe (also China).

produces this type of crushers, but they are constructively focused on processing waste from polypropylene and ABC. The main type of such crushers:

1) universal knife shredions of the polymers of the ADM-600D and ADM-600DU series manufacturer LLC Baikal G. Shchelkovo. Power 11-15 kW. Weight 200 and 250 kg. Similar crushers are released in g. Volzhsky. These are universal knife shredions of polymers of the Mi-600 series

2) a universal knife grinder of polymers of the IPR-500 and IPR-500R series. Declared performance for foamine 3-5 m3/hour. Power 11, 15 and 30 kW. Weight 380 kg.

For grinding foam, manufacturers of crushers, recommend a power of at least 15 kW.

From low-power knife crushers of production on the Internet, IP-5 and Pi-1 to PI-5 are represented. (Machine-45, IP Ivanov E. BUT.) Engine power in these grinders 1.1 kW.

Now about the stab crushers of foam rubber designed for a medium.sized furniture manufacturer. What can be offered for the production of upholstered furniture with the production of products of 100-400 sofas per month? Here you can choose from the following models with a performance from 50 to 200 kg./hour.

Universal knife chopper of polymers IPM-11/3.0.

Prisoner of OJSC “NIIPRECTASBES”. Power 3kW. Productivity is not indicated, but it can be assumed that up to 70 kg./hour. Weight 15 0 kg. Has a exhaust pipe 160 mm., To connect the aspiration installation. Video work IPM-11/3.0.

Manufacturer of IP “Kozlakov in.FROM.” G. Volzhsky. Power 4 kW. and 7.5 kW. The model is designed to grind elastic foamed polymers and foam. Has a fairly wide feed pipe (220×220 mm.) and the ability to connect through the hose of the aspiration installation to collect the crumb into the bag.

Grinder of the foam rubber emi-p-5.5/380V. our production.

Power 5.5 kW. Optimal performance 2 m3/hour. Weight 71kg. The crusher is designed to grind foam (primary and secondary), isolon, foamed rubber. The presence of your own built-in centrifugal fan allows you to pump the crumb into a bag-bun, or through an air duct into a storage bunker.

four.Crusher for foam rubber manufacturer Texpro g. Krivoy Rog.Power 4 kW. The stated optimal performance is 250-300 kg./hour. Good chopper, but it is produced in Ukraine.

Manufacturer of NPF CJSC ELPA. Power-7, 5 kW performance-180-220 kg/hour.

Now about the performance of the crushers of foam.

From their own practice of testing our crushers. For a long time concluded that “performance”. The parameter is very relative (we are talking only about knife crushers):

Density or “viscosity” affects the speed of grinding and load on the motor. Here these parameters behave differently. Dense foam is crushed faster, but the shock load on the knives increases slightly. Viscous foam rubber increases both time and load during grinding.

The thickness of foam waste during grinding affects the dimension of the crumb and the load on the motor. When the waste is submitted by the thickness of the thickness of the sieves, we get more normalized crumbs at the output than when using thin foam rubber.

Features of further gluing foam

If the cutting of foams at home failed, and the edges turned out to be crooked or the incision is made incorrectly, you can try to glue the workpiece before further use. I did it as follows:

• I needed glue on butadiene-stirol polyurethane non-pynchine basis. I chose the Rapid-100 model.
• Lubricated the edges of the prepared details with these glue, to save the product used a gun, since the maximum consumption was 70 g/cm2.
• He withstood the time while the glue takes the desired shape (for each specific model of the composition, an individual gluing gap in the packaging instructions is indicated).
• Then I fastened the details with each other, performing uniform pressing of each edge, you can use the press, since it is not very convenient to fix it alone.

I got such a brief instruction. But, I advise you to try to correctly cut the foam rubber in the first time at home, since the gluing stage will still require some dexterity.

This video describes a simple process of cutting foam rubber into parts at home

I will summarize

Cutting foam rubber, wire or knife at home should be performed with caution. You need to choose a method of fragmentation of the material depending on personal needs, so decide on the volume of work and only then find a suitable method.

Write in the Комментарии и мнения владельцев, do you think whether it is possible to cut foams at home with your own hands or is it a waste of time and easier to purchase material already ready.made by order?