Casting Operation Procedures
    1, clear channel, and all the casting of obstacles.2, check whether hot metal ladle drying, the bottom of the bag, bag ears, bag, the client is safe and reliable, rotational part is flexible.It is prohibited to use not drying of hot metal la...

Nonferrous Metal Smelting Wastewater Trea
    3, vulcanization method in which sulfur vulcanizing agent to generate insoluble in water. Using the reagent is NaHS, H2S, Na2S. In addition to heavy metal advantages are: low PH condition. The drawback is: to produce hydrogen sulfide seconda...

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...