The Anti-Corrosion Treatment Of Ductile Iron Pipe Fittings
Asphalt paint coating is used to transport gas pipelines. Preheating the pipe before painting can improve the adhesion of the asphalt paint and accelerate the drying. ...
Helpful Articles
Microstructure And Mechanical Properties Of Automobile Aluminum Chassis Structural Parts
An automobile chassis structure is shown in Figure 1. Its outline size is 677.79mm×115.40mm×232.42mm, mass is 2.6kg, average wall thickness is 3.5mm, and volume is about 9.88×105mm^3. The projected area of the casting is 86300mm^2, and the material is Al-8Si-Mn-Mg alloy. ...
The Optimization Of Low-Alloy High-Strength Steel Welding Consumables Composition
The optimization direction of the weld structure of low-alloy high-strength steel is to generate more acicular ferrite. Studies have shown that acicular ferrite has fine grain size and high density of dislocations. When its content is greater than 65% and the average lath size is about 1 μm, the wel ...
The General Heat Treatment Of Steel
The steel whose structure deviates from the equilibrium state is heated to an appropriate temperature, kept for a certain period of time, and then slowly cooled (usually cooled with the furnace) to obtain the structure close to the equilibrium state. ...
Common Materials Of Valve Body And Various Materials Heat Treatment Analysis
For the heat treatment of high-quality carbon steel, the valve body of No. 35 forged steel is taken as an example. The valve body of No. 35 steel shall be normalized after forging, and the final heat treatment shall be carried out according to the provisions of the valve manufacturing technical docu ...
Solution Treatment Effect On Haynes282 Heat-resistant Alloy Microstructure And Hardness
Haynes alloy is a Ni-Cr-Co-Mo aging-strengthened high-temperature heat-resistant alloy developed by Haynes in the United States. The alloy has good hot workability, corrosion resistance, long-term aging structure stability and excellent creep strength. , Is one of the candidate materials for the ste ...
The Characteristics Of Ferritic Stainless Steel
Since ferritic stainless steel has good atmospheric corrosion resistance, it has been used as the roof and curtain wall of buildings recently. However, the atmospheric environment in areas close to the sea is particularly harsh, especially the suspended particles in the sea and air are quite corrosi ...
The Reasonable Measures To Steel Plate Control Delamination Defects
The analysis believes that the root cause of the inconsistent flaw detection is the internal segregation of the cast slab. In this case, the subsequent reasonable control of cooling and optimization of the ring cooling can greatly alleviate this problem. ...
17 Reasons And Control Of Poor Spheroidization
In the 1960s and 1970s, cupolas were mainly used to produce ductile iron, due to the poor quality of coke (large lumpness, low density, low fixed carbon content, and sulfur content); low temperature of molten iron; preparation of nodulizer used The method is not perfect; the pig iron contains high s ...
Chromite Sand Application Examples In Casting Production
Chromite sand belongs to the category of special sand in modeling materials. Its main mineral composition is FeO.Cr2O3, density is 4.0～4.8g/cm3, Mohs hardness is 5.5～6, refractoriness is greater than 1900℃, chromite Sand has good resistance to alkaline slag and does not react chemically with iron ox ...
Three Levels-Smart Workshop-Smart Factory-Smart Manufacturing
Smart workshop, smart factory, smart manufacturing, three levels, each is different.Among them, smart workshops and smart factories belong to the level of technology, and smart manufacturing belongs to the level of Tao. The technique is endless, and the way is also endless; the way is endless, the t ...
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How To Calculate Pressure Die Casting Tonnage
Calculation Formula The calculation formula for the selection of die-casting machine: Die-casting m
The Numerical Control Cutting Process Of Thread
The thread cutting process depends on the structure of the machined parts and the CNC machine tool u
Approximate Fitting And NC Machining Of Ellipse Gear
Oval gears are widely used in automatic machinery and instrument industries, and are a type of non-c
The Role And Application Field Of The Cylinder Telescopic Sheath
The cylinder telescopic sheath is a protective component that is installed on the oil cylinder, cyli
The Wavelet Analysis Of Overcut In Free-Form Surfaces CNC Machining
The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it often tak
Using pure oxygen burner to reduce energy consumption of ladle preheating
The Wu Steel Works has two workshops, one steelmaking workshop and the second steelmaking workshop.