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Founded in the 1980s, Dalian Shenhua Electronic Co., Ltd. is located in Dalian Economic and Technological Development Zone, and is a private joint-stock enterprise with an area of 11,500㎡, a building area of 7,700㎡ and the registered capital of RMB 14 million....

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The company recruit professional mechanical technicians and quality management personnel
Job Type: Technology Job Title: Professional Mechanical Technician Gender: no limit Nature of work: full time Salary range: Negotiable Education requirements: no limit Work area: Dalian Accept resume language: Chinese Working years: no limit Release date: 2017-10-10 Deadline: 2021-10-30 Job Description: The company needs long-term recruitment of professional mechanical technicians
What are the three aspects of the surface quality of machining that affect the performance of the part?
Surface quality refers to the state of the surface layer after the part is processed, and it is also a very important aspect to measure the quality of machining. It includes the surface roughness, the metallographic state of the surface layer metal, the mechanical properties and the magnitude and nature of the residual stress.
What must be done before a precision machine tool is processed?
In the process of machining, in order to reduce the error caused by the thermal deformation of the process system, it is generally necessary to fully cool down and reduce the temperature rise; the machine tool is processed under thermal equilibrium; and precision machining is performed under constant temperature conditions.
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