Nonferrous Metal Smelting Wastewater Trea
    Along with the advance of global industrial level, metal smelting has brought great changes to peoples life, and with the industry developed, which is associated with serious water pollution problems. Among them, non-ferrous metal smelting p...

The Advantages of Resin Sand Casting
    New type resin sand coating advantages: new foundry coating is based on traditional foundry coating is improved, the adjustment, can effectively prevent the high temperature liquid metal oxide, and casting and high temperature chemical react...

The Characteristics and Properties of Nod
    Ductile cast iron is spherical graphite is obtained by spheroidization and inoculation, effectively improve the mechanical properties of cast iron, especially improve the plasticity and toughness, and the strength is higher than carbon steel...

The Role of The Casting System
    Gating system is used to control the speed of the liquid metal filling mold and the time needed for full of mold;Smoothly into the mold, the metal liquid to avoid turbulence and washing of mold;Keeping slag and other inclusion into the mold...

The Composition of Casting System
    Casting system is to introduce the liquid metal mould cavity and open channels within the mold.Gating system include:1) pouring basin.Undertake metal ladle poured in, also call outside the gate(2) the sprue.Connected at the outer gate and h...

Stainless Steel Seamless Tube of The Effe
    For stainless steel seamless tube, the three elements of solid solution treatment temperature, holding time and cooling rate. The role of stainless steel seamless tube solid solution treatment: 1: made of stainless steel seamless tube organi...

Stainless Steel Seamless Tube of The Effe
    For stainless steel seamless tube, the three elements of solid solution treatment temperature, holding time and cooling rate. The role of stainless steel seamless tube solid solution treatment: 1: made of stainless steel seamless tube organi...

The Effect of Solid Solution Treatment
    Solid solution temperature is mainly determined according to chemical composition. Generally speaking, variety and high content of alloy elements brand, to increase solid solution temperature. Especially manganese, molybdenum, nickel, high c...

The Heat Treatment of The Investment Cast
    For the second type of heat treatment and advocate, al qaeda has had the obvious change, can be roughly divided into five categories:1, softening annealing: its purpose is to decompose the carbide, its hardness is reduced, and improve the pr...

The Heat Treatment of Precision Castings
    Because different aims of precision casting, heat treatment, basic can be mainly divided into two categories, the first category is the organization structure will not change or by heat treatment and should not be changed, the second is the...

Casting Surface Defect Detection Method o
    Eddy current testing is suitable for inspection are rarely more than 6 ~ 7 mm deep beneath the surface defects. Eddy current testing points to place coil method and through the coil method two. : when the specimen is placed near the coil of...

Casting Penetration Testing of Surface De
    Liquid penetrant testing is used to check the various open defect of casting surface, such as surface crack, such as pinhole on the surface of the defects of the naked eye is hard to find. Commonly used penetrant testing is shading detection...