Repair situation and equipment analysis Caster glue: simple, extensive castings, generally repairing does not require subsequent processing, and there is no special strength and hardness requirements. The added value of this type of casting is relatively low. ...
Compared with the clay sand dry casting process, the self-hardening resin sand casting process has the following advantages: good casting surface quality, high dimensional accuracy, low rejection rate, wide application range, low technical requirements for workers, and greatly reduces workers’ burde ...
The biggest advantage of precision casting is that because investment castings have high dimensional accuracy and surface finish, it can reduce machining work, just leave a little machining allowance on the parts with higher requirements, even some castings Only the grinding and polishing allowance ...
In addition to the proper selection of excellent ingredients in the production of cast iron to obtain a predetermined structure, heat treatment is also an important way to further adjust and improve the matrix structure to improve the performance of cast iron. The heat treatment of cast iron and the ...
For machine parts requiring higher strength, plasticity and toughness, steel castings are required. The output of steel castings is second only to cast iron, accounting for about 15% of the total output of castings. ...
Improving the service life of the induction furnace body is the goal pursued by every foundry worker, and it will also be of great significance to the enterprise. The main factors affecting the service life of electric furnace crucibles are lining refractory materials, furnace technology and use tec ...
Rare earth has two beneficial effects in molten iron: one is desulfurization and degassing, playing the role of spheroidization and indirect spheroidization; the second is interacting with trace elements to eliminate harmful aspects and play a positive side. Both of these aspects can improve the rou ...
This situation occurs more frequently in new molds. many. When the factory first started to produce 186 boxes, the gate parts were stuck in blocks and cracks appeared, resulting in a low product qualification rate and affecting the normal production of die casting. There are many factors that cause ...
At present, the view that the white layer is regarded as a martensite structure has been unanimously recognized, and the main dispute lies in the fine structure of the white layer. One view is that the white layer is the result of phase change and is composed of fine-grained martensite formed by rap ...
The problem of casing damage seriously restricts oil and gas production, reduces the production life of oil and gas wells, and leads to a decline in oil field production and great economic losses ...
The precision casting mold is also called lost wax casting, and its old product is complex, precise, and close to the final shape of the part. It can be used directly without processing or with a lot of processing, so investment casting is an advanced technology with near net shape. ...
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The thread cutting process depends on the structure of the machined parts and the CNC machine tool u
Oval gears are widely used in automatic machinery and instrument industries, and are a type of non-c
The cylinder telescopic sheath is a protective component that is installed on the oil cylinder, cyli
The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it often tak
The Wu Steel Works has two workshops, one steelmaking workshop and the second steelmaking workshop.