How to cut a rubber tube into strips.

Modern industry produces many different types of rubber used in the most unexpected industries. Quite simply and quickly you can find the required rubber gaskets or the required rubber blank at the nearest market. However, if you still need to make a rubber product with your own hands, then you will need a couple of simple tips on how to simply and accurately cut the rubber.

How to cut rubber with a knife:

Rubber can be quite diverse in its properties, ranging from a very elastic and fairly pliable material to elastic, durable rubber plates. Rubber can be used in a wide variety of ways, for example, to cut a suitable size plumbing gasket, a boot heel, or a non-slip stand. glass surface. Many are cut from car tires various kinds animals, swings, or make interior items. Can be done flower beds from car tires, but for this you need to know how and with what to cut a car tire.

The secret is very simple, in order to accurately and simply cut a piece of rubber, you will need sharp knife, of course. and ordinary water.

A piece of elastic rubber, a sharp knife and water.

To start, you need to mark the cut line (for me, simply setting the knife blade straight was enough).

We begin to cut the rubber with a knife.

Cutting thick rubber with a knife becomes quite difficult as the blade goes deeper into the thickness. The rubber begins to become viscous, and if you overdo it, the rubber may even melt. To prevent this from happening, and for the knife to pass through the rubber like clockwork, it must be moistened with water (not oil, in no case should it be moistened with oil).

We wet the rubber with water and cut it with a knife.

Rubber becomes slippery when wet, and the knife blade will not get stuck and melt the rubber, thereby you will get an even and high-quality cut without much effort.

A rubber block cut using water.

How to make a round hole in rubber:

Sometimes there is a need to cut rubber circles, for example, for non-slip legs under a stool, heels, or for gaskets between two glasses. In order to cut evenly shaped rubber mugs, you need to select metal pipe suitable diameter, you will also need a piston suitable for the diameter of the tube.

A – metal tube, B – piston

You need to use a sharpener or a file to sharpen the edge of the iron tube.

Sharpened iron tube

After you have sharpened the tube, you need to insert it into the drill chuck, moisten the rubber with water and simply start drilling holes, first laying it on a piece of wood.

Drill out round rubber gaskets

With the help of such a simple device and water, you can drill out as many smooth, neat rubber rounds as you like (I use them to make non-slip feet for devices). The sharpened tube operates on the principle of a drill, but as the circles are drilled, it becomes filled with them, and in order to pull them out, a special piston is needed. You then simply push the rubber rounds out of the sharpened tube.

Squeeze the rubber bands out of the tube with a piston

The main thing is not to forget to wet the rubber with water when drilling or cutting. It should be noted that cutting a circle using a sharpened tube is much easier and more convenient than in the classic way- using a drill. However, if you need to drill rubber with a drill, this is also quite easy to do by sharpening it first and periodically dipping the drill in water.

You need to drill rubber at low speeds and periodically wet it cutting edge. However, if you need to drill a large block of rubber into high speed, it is advisable for you to completely immerse it in water.

Drilling rubber in water using a drill.

As a last resort, holes in thin rubber, as in plastic, can be melted by heating the shank of a drill or an iron tube with a lighter.

Holes melted into rubber

The main thing is to be careful when working with hot metal. Also remember that rubber can release toxic substances when overheated, so melt holes under the hood or in a well-ventilated area. Follow all safety rules even when drilling rubber.

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How to cut rubber with a knife:

Rubber can be quite diverse in its properties, ranging from a very elastic and fairly pliable material to elastic, durable rubber plates. Rubber can be used in a wide variety of ways, for example, cutting a suitable size water seal, a heel for boots, or a non-slip stand under a glass surface. Many people cut out various kinds of animals, swings, or make interior items from car tires. You can make flower beds from car tires, but to do this you need to know how and with what to cut a car tire.

The secret is very simple, in order to carefully and easily cut a piece of rubber, you will need a sharp knife, of course 🙂, and ordinary water.

A piece of elastic rubber, a sharp knife and water.

To start, you need to mark the cut line (for me, simply setting the knife blade straight was enough).

We begin to cut the rubber with a knife.

We wet the rubber with water and cut it with a knife.

Rubber becomes slippery when wet, and the knife blade will not get stuck and melt the rubber, thereby you will get an even and high-quality cut without much effort.

A rubber block cut using water.

How to make a round hole in rubber:

Sometimes there is a need to cut rubber circles, for example, for non-slip legs under a stool, heels, or for gaskets between two glasses. In order to cut evenly shaped rubber mugs, you need to select a metal pipe of a suitable diameter, and you will also need a piston suitable for the diameter of the tube.

A – metal tube, B – piston

You need to use a sharpener or a file to sharpen the edge of the iron tube.

Sharpened iron tube

After you have sharpened the tube, you need to insert it into the drill chuck, moisten the rubber with water and simply start drilling holes, first laying it on a piece of wood.

Drill out round rubber gaskets

Squeeze the rubber bands out of the tube with a piston

The main thing is not to forget to wet the rubber with water when drilling or cutting. It should be noted that cutting out a circle using a sharpened tube is much easier and more convenient than the classic method - using a drill. However, if you need to drill rubber with a drill, this is also quite easy to do by sharpening it first and periodically dipping the drill in water.

You need to drill rubber at low speeds and periodically wet the cutting edge. However, if you need to drill a large block of rubber at high speeds, it is advisable for you to completely immerse it in water.

Drilling rubber in water using a drill.

As a last resort, holes in thin rubber, as in plastic, can be melted by heating the shank of a drill or an iron tube with a lighter.

Holes melted into rubber

Let's go in order. I agree with paragraph 3 of Article 1358. It clearly follows from this paragraph that a Utility model (someone else’s patent) is considered used in a product (your product) if it uses at least one feature from an independent claim of someone else’s patent. This single feature used can only be a distinctive feature, since Article 1358 of the Civil Code deals with EVERY feature of an independent claim. “The independent claim must contain the necessary features: - to realize the purpose of the invention (utility model), - to achieve the technical result specified in the description; The set of features of the independent claim must provide the subject of the invention or utility model with patentability"

It looks like it. element damping is just from combines. Examples usually involve either rotor dynamics or FSI analysis using acoustic elements. Or should you shake the containment? Well, there are water tanks))) they can be modeled with acoustic elements. Although these are fleas, of course. g - constant structural damping assign different g to different materials. Why is Rayleigh damping not suitable? Well, except that you don’t know the required alpha and beta. an approach is used to create an FE model. The FE model can contain different objects such as combinations14 or simply materials with damping. Assembling the matrix from the FE model is the task of the program. Our task is to assemble the FE model and properly configure the program. Shoving your objects into its matrices after the program has formulated the matrix is unproductive and does not correspond to the popular approach. A conversation about modal coordinates, apparently, is a conversation about a solution using the superposition method of harmonic or transient analysis. But this is not certain)

Let's go in order. I think you agree with paragraph 3 of Article 1358. Yes? It clearly follows from this paragraph that if at least one feature from the independent claim of the formula is not used, then the patent is not used in the object. Do you agree? This single unused feature can be both a distinctive feature and a restrictive one, since Article 1358 of the Civil Code refers to EVERY feature of an independent claim. That's actually all I wanted to say.

Ratcheting is not stabilization, but the accumulation of deformation from cycle to cycle. but the reverse process is also possible - stabilization and stretching of the hysteresis into a straight line. He probably even does it more often. How exactly a specific material will behave under specific conditions is another question. that's it. only in special cases. Let's say we stretch the material. and let us assume that our material is such that at a fairly large deformation the Bauschinger effect ceases to be observed. how can this be, for example... but we exceeded the yield limit twice. If the Bauschinger effect worked, then upon unloading and subsequent compression the material would begin to plastically deform immediately. And if at the tensile stage the yield strength were exceeded three times, then the material would flow in compression without yet being unloaded. This leads us to the conclusion that the yield surface is not rigid, but has the ability to deform in the region of large deformations. But adherents of isotropic hardening go further. And let's, so that the above-described crap does not happen, as the surface of fluidity shifts, we will also expand it. Then, with large stretching and subsequent unloading and compression, it is possible to select such parameters as to fit into a separate private experiment or several experiments. But by using isotropic hardening, we expand the surface not only in one direction, but also in the perpendicular one. If you look at the stress space, let’s say tension/compression - we were talking about sigma1, then perpendicular - sigma 2 or sigma3. And now this is categorically false. That is, this will not work for complex loading trajectories. Therefore, a combination with ishotropic hardening is a dead end. It does not exist in nature; it was simply easier to program it at the beginning of the development of FEM for problems with one-sided plastic deformation and a simple loading trajectory. As a bonus for those who read to the end. There is also combined hardening, by the way, but with good results.

In the sources you indicated, we see information that is fully consistent with the Civil Code, clause 3, Article 1358. A utility model is recognized as used in a product if the product contains every feature of a utility model given in an independent clause of the utility model formula contained in the patent. 3. Independent claim The independent claim determines the scope of legal protection of the invention (utility model), i.e. is the basis of the application. When writing an independent clause, the following basic principles should be considered: #1: The fewer features in the independent clause, the broader the legal protection, which is better for the future patent. Therefore, one must try to describe the object in as general terms (concepts) as possible so that the applicant has the maximum scope of rights to the invention (utility model). No. 2: The independent claim must contain the features necessary: - to realize the purpose of the invention (utility model), - to achieve the technical result specified in the description; No. 3: The set of features of an independent claim must provide the subject of the invention or utility model with patentability. Let me ask you a question: What exactly do you disagree with? With Article of the Civil Code, paragraph 3, Article 1358. A utility model is recognized as used in a product if the product contains every feature of a utility model given in an independent clause of the utility model formula contained in the patent?

You need to start cutting the tire with a shoe knife. We make the same cut several times, pressing on the side so that the cut diverges and cut through. Now insert it into the cut good knife, sharpening towards you (I made a special cutter from the blade of an industrial hacksaw) and cutting with an upward-toward motion, simultaneously bending what is being cut to the side. Cut the tire how they cut bread - no need. Rip up the rubber. And the knife doesn’t have to be razor-sharp: the slight sawtooth shape of the burrs is only beneficial.

I recommend turning the tire out for the winter and letting it rest. Otherwise, cut, it will become a wave. It is necessary to remove the trough-like appearance, which will give the hoop a long shelf life. But you can do it differently. Make a bunch of cuts on the inside out tire...

You can cut hoops into ribbons with a regular small grinder. Just make sure that the wind is not blowing towards your neighbors, otherwise you won’t be able to avoid an untranslatable play on words (in one of the local dialects) because this thing is stinking. BUT! The rubber is nicely cut with a grinder, the metal cord is also striped with it and... In general, cutting a tire is a quick job if you see how once. And to make it completely clear, here is a video where cutting a tire occurs in real time.

http://robinzoid.ru/kak-razrezat-pokryishku/

Tire pitfalls

When processing and manufacturing products from old tire there are pitfalls that are hidden from view and appear only directly in the process. This article is dedicated to these stones.

Catch #1. Material - rubber.

The tire must be firmly secured, or at least the part that is in at the moment cultivated. In our case, an original tire cutting technique has been developed. Based on this, you need to cut the tread first while the tire has maximum rigidity. If there is, you need to cut the tread and rest against nothing, an ordinary glass jar will come to the rescue, although after cutting 5-6 centimeters, the jar must be moved.

The threads of old and new tires are different, and at the same time the results i.e. properties of cutting elements are different. For clarity, if you make a swan from a bald tire, then the swan’s head falls to the front, and if from an almost new one, then the head, on the contrary, falls back.

Catch #2. The presence of a metal cord and tread thickness.

The metal cord is located only over the entire area of the rubbing surface. The metal cord, together with the thickness of the tread itself, creates additional difficulties when cutting the tire.

Using a hacksaw for metal, cutting a tire is very, very difficult, and in some places it is completely impossible.

When treating the main rubbing surface, use:

electric jigsaw (the most good option- rubber does not burn and is processed well). Having tried several jigsaws, I was surprised that not every jigsaw can cut a tire.
grinder (in some cases convenient, but the rubber burns - a lot of smoke)

But the sides of the wheel are easy to cut with a regular knife. Rarely, but accurately, there are tires without a metal cord at all - probably 1 in 40.

Catch #3. A ring on which the tire sits on a metal rim.

The ring is a hardened stranded metal rod, bent into a ring. Cutting metal with a hacksaw is unrealistic, but it can take a long time. There is only one way out - use Balgarka. In my opinion, the seat ring is correctly called. Many people immediately want to get rid of the ring; in some cases, the rigidity of the ring is used in the design.

Catch #4. Tire painting.

You can paint the wheels with any paint. Nitroenamel dries quickly and allows you to immediately place and use the figures. But since you have to paint rubber, which is deformed during transportation, the paint also cracks and bursts - regardless of the type of paint. Because chemical reaction It goes on constantly, so the colors fade, white becomes yellowish, so it is better if it is possible to repaint the figures annually.

Catch #5. Injuries.

Since the cord is metal mesh, therefore, metal hairs are formed on the cut, which strive to cut through the skin. Metal shavings are not a pleasant thorn. Be especially careful with your eyes when sawing with a jigsaw.

Catch number 6. Energy costs.

I would like to immediately warn, but not scare or dissuade, that the tire weighs quite a lot and working with the cord and metal attachment ring implies the presence of male hands. On average, wheels have 13, 14, 15 radii - the most popular ones weigh on average in the range from 5 to 8 kilograms, and if we estimate that one cutting can take about 1 hour, then you will have to turn the wheel more than once.

From everything said above we draw a conclusion.

To process and cut an old tire you need:

a work table on which the old tire will be cut (see catch 1) or at least just a table;
a hacksaw, a jigsaw, a drill, an angle grinder (see trick 2.3) - literally everything can be needed;
hand protection (gloves), eye protection (mask, goggles) + all protective equipment necessary when working with power tools.
persistence and patience, and, not least important, physical strength (try turning the wheel several times)

http://delashop.ru/content/view/28/36/

Reader Tips:

It’s easy and simple to cut even Belaz rubber. I bought a RAGE blade and put it on a simple hand-held circular saw. It is possible with the original one circular saw Buy RAGE, but it’s cheaper to just buy a disc, which is what I did.
if you cut crosswise, then use a grinder and a metal disc.
I cut it more than once. the discs didn't burn out :-) just a bunch of black crap flying around :-(
if it's fast.
if there is no grinder - regular hacksaw on metal.
for metal it is needed because when cutting across the tire, you need to cut the metal cord.
If you cut AROUND (circumference) then... who knows, I didn’t cut it. perhaps a sharp knife and soap as recommended above or a jigsaw.
this again - if you don’t run into the cord.
Good hour! Electric jigsaw with the roughest saw blade for wood and machine oil. The Belarus tractor tire takes about 10 minutes, it’s easier for two people to pull off the cut off part.

You can watch a video on how to cut a tire

I think it will be clear from the photo: why cut the tire. Indeed, they do not rot and do not creep away from the sun and frost. Accidental impacts, unlike asbestos cement sheets, do not harm them. After all, rubber strips can be used in many ways. Even if you don’t edge the beds like I did. Even if not cut the tire on the tape, hoops obtained from it, Can be used as a compost bin or vertical bed. Yes, you hear a lot that it’s harmful and terrible and all that... I don’t know. But my ants build their summer incubator nests near the rubber, where they keep their pupae. If rubber were harmful, I don’t think they would have worked like that. And if they aren’t afraid, then it’s somehow no good for me either.
OK. Everyone decides this question for themselves. But for those who decide to cut a tire for their needs, here are some tips:
You need to start cutting the tire with a shoe knife. We make the same cut several times, pressing on the side so that the cut diverges and cut through. Now we insert a good knife into the cut, sharpening it toward you (I made a special cutter from the blade of an industrial hacksaw) and cut it with an upward-toward motion, simultaneously bending what is being cut to the side. Cut the tire how they cut bread - no need. Rip up the rubber. And the knife doesn’t have to be razor-sharp: the slight sawtooth shape of the burrs is only beneficial.
I recommend turning the tire out for the winter and letting it rest. Otherwise, cut, it will become a wave. It is necessary to remove the trough-like appearance, which will give the hoop a long shelf life. But you can do it differently. Make a bunch of cuts on the inside out tire...
You can cut hoops into ribbons with a regular small grinder. Just make sure that the wind is not blowing towards your neighbors, otherwise you won’t be able to avoid an untranslatable play on words (in one of the local dialects) because this thing is stinking. BUT! The rubber is nicely cut with a grinder, the metal cord is also striped with it and... In general, cutting a tire is a quick job, if you see how once.
As an example of why cut tires are needed, I can bring to your attention