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QPQ treatment
QPQ is an abbreviation of quench-polish-quench. Refers to the black metal parts into two different properties of the salt bath, through a variety of elements into the metal surface to form a composite infiltration layer, so as to achieve the purpose of parts surface modification. It did not under...
Natural Graphite Purification Technology
There are many ash and volatile substances in natural graphite, and the general graphite content is about 50%~90%. Therefore, when the graphite raw material is deeply processed into a graphite material, it is technically first purified. The quality of graphite purification determines the use char...
Vacuum High Pressure Gas Quenching Furnace
What is vacuum high pressure gas quenching Vacuum high pressure gas quenching refers to the hardenability materials of working die steels, high speed steels and alloy steels, which are heated to the critical temperature Ac3 or Ac1 after being loaded into the chamber of the vacuum furnace to achie...
Gas turbine vacuum casting technology
CAE Simulation technology Gas turbine castings have complex structure, poor sequential solidification performance, poor complementary shrinkage, easy to produce shrinkage cavity and porosity.However, gas turbine castings are prone to crack under high temperature and pressure due to some defects s...
Die Steel Oil Quenching
Die steel can be roughly divided into three types: cold-rolled die steel, hot-rolled die steel and plastic die steel for forging, stamping, cutting, die-casting and so on. Due to the different uses of various molds and complicated working conditions, the steel for molds should have high hardness,...
Tool Steel Oil Qenching
Tool steel oil qenching, carbon tool steel has a very short temperature range in the transition tendency, and the incubation time is very short and the hardenability is very poor. In order to avoid non-M transitions before the formation of martensite, an extremely high critical cooling rate is re...
D2 Steel Heat Treatment
D2 steel has high wear resistance, micro-deformation cold work die steel, wind hard tool steel, carbon content up to 1.5%, chromium content up to 11.5%, heat treatment hardness up to 60HRC. D2 steel can be used to produce cold work die steel with large cross section, complex shape, high impact fo...
Oil cooler brazing
Oil cooler brazing is an important spare part of the automobile body. It is an important part to ensure the safe operation and life of the automobile engine. Its structure is complicated. Most of the mainstream oil coolers sold on the market today adopt a multi-layer densely arranged sawtooth typ...
Copper brazing
Copper and copper alloys are generally classified into four categories: copper (pure copper), brass, bronze and white copper. Copper brazing properties mainly depend on the stability of the surface oxide film and the influence of the brazing heating process on the material properties. Copper oxi...
Vacuum heat treatment process and equipment for magnetic materials
Magnetic materials are widely used in various industrial fields because of their special physical properties. In order to achieve the design performance of parts, heat treatment is needed when magnetic materials are processed into parts. After the application of vacuum technology in heat treatmen...