Basic Knowledge of Heat Treatment Part 11
    Nitriding Operation method: use in the 5.. ~ 600 degrees ammonia decomposition of reactive nitrogen atoms, the steel surface is nitrogen saturation, formation of nitride layer.Objective: to improve the steel surface hardness, wear resistance...

Basic Knowledge of Heat Treatment Part 10
    Carburizing Operation method: put infiltration medium carbon steel, heating to 900 ~ 950 degree and heat preservation, the steel surface to obtain a certain concentration and the depth of carburized layer.Objective: to improve the steel surf...

The Influencing Factors of Heat Resistant
    (2) heat resistant steel notch sensitivity: gap caused by stress concentration to the persistent strength decided to temperature, the influence of geometric shape of the gap, durable plastic steel, heat treatment process and factors such as...

The Influencing Factors of Heat Resistant
    (1) the temperature gradient, temperature fluctuation of heat resistant steel materials has distinct effect on the mechanical properties at high temperature.In the power plant boiler equipment due to many factors such as start-up, boiler sto...

Accuracy and Cost of Investment Casting
    All kinds of casting method for precision casting, initial investment and productivity is not consistent, the economic benefit is also varies.Therefore, to do more, faster, better, the province, all aspects should give attention to two or mo...

The Brief of Investment Casting
    Precision casting is compared with the traditional casting process of a casting method.It can obtain relatively accurate shape and high precision casting.A common approach is: first, in accordance with the requirements of product design and...

Radiant Tube is an Important Auxiliary Eq
    Heat treatment process of production and processing is important in the process of heat treatment, the radiant tube plays an important role.Radiant tube adopts advanced production technology and material, has the characteristics of high temp...

How to Improve the Level of Casting Techn
    Experts say, to fundamentally improve the level of casting technology it has to do the following four points:A, development of simulation technology, improve the accuracy of prediction, to strengthen the process control and improve the yield...

Iron Mould-Tectorial Sand Casting Process
    Casting of iron mould-tectorial sand is in metal mold (called iron type) on the inner cavity after a thin layer of sand and the formation of a cast a casting process.By thin sand layer (4 to 8 mm), so the more expensive molding materials wit...

The Internal Components of Stainless Stee
    The internal elements of stainless steel complex, there are five main, the five elements plays a decisive influence on the performance of the stainless steel pipe fittings, good or bad depends on how you take hold of the content.In addition...

The Internal Components of Stainless Stee
    (3) sulfur sulfur in steel is a harmful element, it mainly exists in the form of Fey in steel.With iron to form crystal, its melting point is 989 degrees, much lower than the melting point of steel.In the process of steel solidification, sep...

The Raw Material of Casting Part2
    (3) of unsaturated polyesterWill add a gravel, pigment and other preparation pour liquid polyester mold, polymerization and curing at room temperature by a certain time, get all sorts of beautiful artificial marble products.(4) cellulose nit...