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Sand casting type:
Chemically hardened sand
Special casting types:
Lost Foam Casting
Annual remaining processing capacity:
Annual processing capacity:
Machine tool casting as a large-scale casting requires heat treatment to improve its own performance and improve the inherent quality of cast iron castings. Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing processes, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but changes the microstructure inside the workpiece or changes the chemical composition on the surface of the workpiece. , Give or improve the performance of the workpiece. Its characteristic is to improve the inherent quality of the workpiece.
Process manufacturing of machine tool castings:
In order to make metal workpieces have the required mechanical properties, physical properties and chemical properties, in addition to the reasonable selection of materials and various forming processes, the heat treatment process is often used. Iron and steel are widely used materials in the machinery industry. The microstructure of steel is complex and can be controlled by heat treatment. Therefore, heat treatment of steel is the main content of metal heat treatment. In addition, aluminum, copper, magnesium, titanium, and their alloys can also be used to change their mechanical, physical, and chemical properties through heat treatment to obtain different performance properties.
The overall heat treatment of machine tool castings is a metal heat treatment process that heats the workpiece as a whole and then cools it down at an appropriate rate to change its overall mechanical properties. The overall heat treatment of steel has four basic processes: annealing, normalizing, quenching and tempering.
Annealing of machine tool castings:
Annealing types for heat treatment of machine tool castings: Common annealing processes include: recrystallization annealing, stress relief annealing, spheroidizing annealing, annealing, etc. The purpose of annealing: mainly to reduce the hardness of metal materials, improve plasticity, to facilitate cutting or pressure processing, reduce residual stress, improve the uniformity of the structure and composition, or to prepare the structure for subsequent heat treatment.
Annealing and isothermal annealing:
Annealing, also known as recrystallization annealing, is generally referred to as annealing. This annealing is mainly used for casting, forgings and hot-rolled profiles of various carbon steels and alloy steels with sub-eutectoid components, and sometimes also used for welding structures. It is usually used as the final heat treatment of some non-heavy workpieces, or as the pre-heat treatment of some workpieces.
Spheroidizing annealing is mainly used for hypereutectoid carbon steel and alloy tool steel (such as the steel used for manufacturing cutting tools, measuring tools, and molds). Its main purpose is to reduce hardness, improve machinability, and prepare for future hardening.
Stress relief annealing:
Stress relief annealing is also called low temperature annealing (or high temperature tempering). This annealing is mainly used to eliminate the residual stress of castings, forgings, welded parts, hot rolled parts, cold drawn parts, etc. If these stresses are not eliminated, it will cause deformation or cracks of the steel parts after time or during the subsequent cutting process.
Features of machine tool castings:
The rigidity of the machine tool is an important feature of the machine tool, which directly affects productivity and machining accuracy. The chemical composition, design structure, casting process, and machining process of machine tool castings are directly and closely related to the rigidity of the machine tool.
When casting machine tool castings, silicon, manganese, magnesium, aluminum, copper and other alloy elements are added to the cast iron to improve the strength of the machine tool castings. Our factory adopts advanced casting technology to form each part of the machine tool, so that it achieves high shock resistance and high rigidity, which greatly improves the shock absorption ability of the machine tool casting, thereby ensuring the stability of the machine tool. The machine tool castings are optimized for design, and various types of reinforcements distributed in the machine tool, as well as the dimensions of the machine tool castings such as the bed, column, and table, are used to reduce the weight as much as possible and carry large loads. The machine bed casting is designed with a triangular force structure, and the machine column casting is designed with an A-shape structure, which eliminates the offset swing of the machine column during the machining process, thereby increasing the load capacity of the machine table.
- Botou Liangjian Machinery Equipment Manufacturing Co., Ltd.
- 销售 Fangjian Sales
- East Development Zone, Jiaohe Town, Botou City, Cangzhou City, Hebei Province
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