There are various types of steels, each of which has its pros and cons. Therefore, you need to know from which metal to buy this or that product in order for it to last as long as possible.
Universal steel
The geometry of the steel object is responsible for its geometry, but to a greater extent the structure of the metal, which, in turn, depends on its composition and the necessary thermal, chemical and mechanical processing. It is a combination of these criteria that explains such a huge number of steel grades and finished products. Since there are various priorities for the characteristics of metal products (sometimes only strength is needed, and sometimes only ductility), initially steel is selected according to its chemical composition, and obtains the final properties by further processing.
Combination of qualities
Processing modes are selected as accurately as possible for each part, and if necessary its small part. They depend, as a rule, on what place the element occupies in the structure and what loads it experiences (friction, dynamic, tension, compression). Based on this, goals are also set: to achieve hardness, ductility or a combination of these qualities. The same hardness, strength, and ductility can be obtained for steels with different chemical compositions, but they can give an unsatisfactory result by other criteria. But the same brand of metal can be used for parts for various purposes. So, for the pyrmer, steel 95x18 can be the basis for the manufacture of various parts, but with the same requirements for tensile strength and hardness. These objects and parts can be heterogeneous: bushings, axles, bearings, but steel shows its best characteristics in the manufacture of hunting knives.
Features and Features
9518 is one of the best and practical steels used for the manufacture of knives with especially strong indicators. As a rule, these are products for hunters. People who prefer knives from this brand make their choice not by chance. Without even delving into the intricacies of metal science, it helps to better know knives made of steel 95x18 reviews from other users, by which you can understand a lot. Namely: this is the most optimal material for this kind of product.
We discovered the chemical composition and properties of this alloy not so long ago. But its growing popularity says a lot about the high rates of this material. Mostly professional companies work with this steel, since it is very capricious, it is characterized by defects such as burn-out or insufficient leave. For this we need people with good knowledge of steelmaking and modern precision equipment, which can only be allowed by a company professionally engaged in the production of knives or other metal products.
Forging treatment
The presence of chromium in its chemical composition puts high-strength steel in a number of corrosion-resistant or stainless. In addition, steel 95x18 is designed for forging. For any metal structure, this procedure is a “cure” for many diseases, the most common of which are microcracks, filling pores with harmful elements of hydrogen, oxygen, and, of course, vacancies (the space that does not occupy the atom that forms the cavity). In addition to “diseases”, forging helps to get rid of chemical and dendritic segregation, more densely “complete” all molecules. With such a hard structuring, grain refinement of the metal occurs. This allows you to increase ductility, without compromising strength. After that, it has steel
95x18 characteristics that can withstand large loads even on bending.
The shape of the knife is equally important.
Design features of cutting products complement and increase functionality. They correctly distribute the load and make using the knife easy and convenient. In the manufacture of the blade, great importance is attached to the shape, size, method of sharpening the edge and the method of fastening the handle. Each of these items has more detailed devices. They increase convenience and enhance the artistic value of the product. There is a direct dependence on the thickness of the blade and cutting quality. The thinner the blade, the better it is for them to do small jobs.
Production technology
Steel 95x18, the knives of which are obtained with a very strong and wear-resistant edge, must go through several stages of processing. The work begins with obtaining a small casting, which is annealed before forging (the workpiece is heated to a temperature of 885–920 degrees Celsius and held for 1-2 hours). It is very important not to burn metal. If this happens, the workpiece is no longer subject to further processing. Only after such exposure is the olives ready for forging. A plate of the desired size is formed from it. Plus, allowances for machining (sharpening, grinding) are given. After forging, the workpiece is rapidly cooled in engine oil. This is called hardening. At this stage, the steel has a very high brittleness, and if it is not removed, then the metal will crumble like a glass with a slight impact. Maybe sometimes the work of an inexperienced master is found, but mostly steel 95x18 reviews receives positive from consumers. The tempering procedure is the heating of the workpiece, but already to lower temperatures - only up to 200-300 degrees Celsius.
Edge formation
The cutting edge of the knife gets its shape in two passes. The first approach allows you to get only preliminary dimensions, the second - more accurate. Immediately after the first vacation, the final machining is carried out . The blade on the machine grinds to the desired size. Steel 95x18, heat treatment which takes place in four stages, takes on the final properties after the second vacation, during which all stresses are removed - and the metal becomes as plastic as possible. To do this, the finished blade is kept at a temperature of 150 degrees for 1-2 hours. Cooling takes place in air. To decorate the blade with original patterns, acid etching can be carried out.
Knife care
Despite its hardness and strength, steel is subject to slow destruction. Of course, this process lasts more than a dozen or even a hundred years, but it can be reduced to a minimum, accelerated by improper care.
Steel 95x18, having in its composition a high content of chromium, is distinguished by its corrosion resistance, which increases the service life. Products from it also have this feature, but nevertheless, both the steel itself and the design features of the knife require careful treatment.
- Mechanical loads . Do not use the knife for other purposes. Loads designed for the handle, edge and blade can destroy many materials, including very strong ones (wood, wire, etc.), but the sharpening and curvature of the blade will suffer in the first place.
- Moisture, dampness, acidic environment. Despite the fact that steel 95x18 is corrosion resistant, prolonged contact with a solution with a high salt content negatively affects the surface. Just like a long stay in a humid place.
The manufacturing technology of knives, like other steel items, is subject to GOST, technological maps and instructions. This type of steel is highly valued not only in Russia. It competes with foreign brands just as easily and surpasses many of them in basic parameters. But, despite this, the products of each master have their own differences. This suggests that working with metal is not only a technological process, it is primarily a vocation.