The cemented carbide band is composed of a saw belt body (1) and a cemented carbide saw (2), characterized in that the saw belt body (1) is annular and has a lattice (2)
Carbide belt with the tip: high hardness, excellent wear resistance, saw belt with high fatigue resistance, high-speed sawing a variety of non-ferrous metals and super-hard special brittle metal materials. Particularly suitable for sawing: cast iron, ductile iron, high temperature alloy, memory alloy, titanium alloy and wear tool steel.
Carbide band saw blade in use, Carbide Strip in addition to follow the basic operation of double metal band saw blade procedures, but also need to pay attention to the choice of line speed.
In the machinery manufacturing, due to the rapid upgrading of products, and therefore the selection of parts have a higher demand, especially in the aerospace, large power plants and ships and other industries in the manufacture of some difficult processing materials such as high temperature alloys, Heat-resistant stainless steel, Carbide Strip composite materials, has been widely used, in which the application of large and more commonly used high-temperature alloy materials, efficient processing has received more attention.
High temperature alloys, usually divided into three categories, namely iron-based superalloys, nickel-based superalloys and cobalt-based superalloys, from the difficult degree of processing, Carbide Strip nickel-based superalloy processing should be said to be more typical and representative.
Carbide belt processing of the main reasons can be summed up in four aspects: First, the high temperature strength of materials, processing hardening tendencies, the general nickel-based superalloy unit cutting force than the carbon alloy steel 50% higher; after processing The surface of the workpiece surface hardening and residual stress, hardening degree of up to 200% to 500%; Second, poor thermal conductivity, its thermal conductivity of about 45 steel 1/5 to 1/2, so the cutting temperature is high; The tendency of the adhesive to the tool is large, Carbide Strip and it is very easy to produce the BUE in the processing of the superalloy, which makes the cutting unstable, which affects the quality of the processed surface. In the alloy to form a large number of highly polished metal carbide, intermetallic compounds and other hard points, the knife has a strong scratches.
The preparation of the superheating alloy is the first process in the machinery manufacturing. The traditional cutting process is usually carried out on a horizontal band sawing machine using a ring-type bimetallic band saw blade to cut off the parts of the bar or different sections Ordinary alloy tool steel and high-speed steel band saw blade, can not be high-temperature alloy processing). The use of high-performance high-speed steel bimetallic band saw blade (edge material M42) to cut difficult to process high-temperature alloys, the cutting efficiency is low, life is also very short, to cut a diameter of 130mm nickel-based superalloy bar as an example (Material for the GH4169), Carbide Strip the use of M42 bimetallic saw blade generally a cutting time is about 8 to 10 hours, and a saw blade life can only be the next one, we chose a high-quality super-hard bimetallic Band saw blade (grade M51), with the saw blade on the same specifications, with the material of the high-temperature alloy bar material processing, the result is in the cutting tool efficiency and life are slightly improved, but the increase is only 15% 20% (the saw blade cutting edge hardness of 67 ~ 69HRC), we believe that the use of this material and type of band saw blade, processing of high temperature alloys can not meet the production requirements, for which we have a variety of programs after comparison, after Selection of hard alloy with a high hardness of the band, after testing and practical application, indeed, carbide saw blade in the processing of high-temperature alloy processing, and achieved significant results to meet the production schedule requirements.