Caprolon, the technical characteristics of which will be described in the article, is the Russian name for one of the most popular polyamides - polycaproamide. On sale today you can also find analogues of caprolon, which are also quite common today.
general description
The material mentioned above is relatively new; it has been known since 1980. It has unique properties, has a high degree of wear resistance and strength. If we are talking about high-quality caprolon, then it can be outdoors for several years, while the material will not lose its mechanical and physical characteristics, it will not require protection from the influence of the external environment and ultraviolet radiation.
Material Features
Caprolon, the technical characteristics of which should be known to you, if you plan to purchase it, is resistant to:
- chemical substances;
- ethers;
- solvents;
- dilute acids;
- alcohols.
Caprolon is soluble in formic and concentrated sulfuric acids, as well as in fluorinated alcohols. Among the main properties of this material is a low coefficient of friction, this allows its use in the manufacture of bearings and other parts friction during operation. However, this option is not the only way to use caprolon in the industry.
Scope of use
Caprolon, whose technical characteristics are quite unique, is used instead of metals. The material is 6, or even 7 times lighter than steel, this indicates that the products are light weight and high strength. Kaprolon is used for the manufacture of bearings that are resistant to corrosion, are characterized by wear resistance, low coefficient of friction, among other things, these parts have the effect of self-lubrication.
Kaprolon is used to obtain gears, pump blades, lionfish, various casings, as well as rollers that form the basis of conveyor belts. Sometimes cutting boards are also made from this material, which are convenient to use in the field of meat industry.
For reference
The caprolon described in the article, the technical characteristics of which will be of interest to every consumer, is able to reduce the wear of products, increasing their life by 1.5 times. The complexity of the manufacturing process is 35% less, while the total cost is almost 0.5 times lower compared to analogues of bronze and steel.
Varieties of caprolon: sheet material
The most popular variety of this material is sheet caprolon, which is a workpiece used to produce various parts, namely:
- bushings;
- inserts;
- flanges;
- rings.
The material is usually in the form of a square with a side of 1000 mm, while the thickness can vary from 6 to 250 mm. However, these parameters are subject to change. Material should be stored in rooms with low humidity conditions. Caprolon, the technical characteristics and features of which are described in the article, should be used with extreme caution, due to its elasticity, smoothness and slippery. Therefore, craftsmen should follow safety precautions when there is a need to hit the surface with a sledgehammer or hammer. This should be done only after the sheet can be fixed. Experts advise to work with the material in gloves, as hands can be damaged by sharp edges.
Sheet caprolon is processed on metalworking machines, but some recommendations should be taken into account. When machining, it is necessary to ensure heat dissipation, the material has a low level of melting point. If complex processing is necessary, it should be borne in mind that the material may become cracked, so it is recommended that the work be divided into several stages.
Specifications
Caprolon, the properties and application of which should be known to the consumer before making a purchase, has a density in the range from 1150 to 1160 kg / m³. The operating temperature varies from -40 to +70 ° C, while the melting temperature reaches 250 ° C. It is also important to know the average coefficient of thermal linear expansion, which is 0.000098, when the temperature changes from 0 to 50 ° C.
Specialists are sometimes also interested in such a parameter as Brinell hardness, which cannot be lower than 130 HB. If we are talking about sheet caprolon, then its flexural strength is 80 MPa or more. The compressive strength is 90 MPa or more. At break, the elongation is 10%, and the thermal conductivity is 0.29 at 20 ° C. Caprolon, technical characteristics, the temperature of which is mentioned in the article, has an electric strength ranging from 30 to 35 kV / mm.
The main varieties of material
Graphite-filled caprolon, the technical characteristics of which allow it to be used in industry, has a friction coefficient that is 3 times lower compared to polyamide of the sixth grade. In terms of durability, this type of material is superior to other brands of caprolon. Among them are:
- polyamide 6;
- PA6-MG - graphite modified material;
- PA6-MDM - modified with molybdenum disulfide.
Polyamide 6 can be made by extrusion or by casting technology. In the first case, the material is quite durable and has high viscosity and reduced wear resistance. If we are talking about polyamide, made by the casting method, then here is the most popular caprolon in Russia, which has antifriction qualities and lends itself well to processing. This material is completely harmless to human health and can be used even in the food industry.
If solid lubricant is added to polyamide 6, it will be possible to obtain a material with increased slip indices, which allows its use in the manufacture of parts and assemblies where constant lubrication is required. Caprolon is quite popular today, with technical specifications whose GOST is of interest to many consumers. But this material is manufactured according to specifications 2224-036-00203803-2012 and has a color from white to cream. If you see the varieties PA6-MG and PA6-MDM, then the color may be gray or black. However, caprolon of the sixth grade is made using pigments; as a result, it is possible to obtain material in different colors. The main brands of this material are indicated by two letters - “A” and “B”, in the first case caprolon is used for the manufacture of parts in aircraft construction, while in the second - for structural parts of mechanical engineering.
Conclusion
Caprolon is resistant to not only hydrocarbons and ketones, but also weak acids and alkalis. Under normal conditions, the material is not toxic, does not have a harmful effect on the human body and animals. When machining products, decomposition does not occur, harmful substances are not released. When a material is exposed to temperatures above 300 ° C, caprolon begins to decompose, and ammonia and carbon monoxide are released.