15-year precision mould making

    With yize ma out of technology requirements for core pins and sleeves machning process today, I believe everyone will want to know more about these parameters, especially core pins and sleeves machning process.
core pins and sleeves machning process technical requirements.
   First, precision of the size, shaft neck is the main surface of shaft parts, which affect the precision and the working state of shaft. Shaft neck diameter precision according to the use requirements usually IT69, precision shaft neck of up to IT5.
   Second, The high precision requirement, can be on the part drawing shall be separately formulated its tolerance.
    Third, the position accuracy is mainly refers to the assembly transmission parts with shaft relative to the support shaft bearing assembly of the coaxial degree, usually with shaft radial bearing journal beating to say; according to the use requirements, provides high precision axis is 0.0010.005mm, and the general precision axis 0.010.03mm. In addition to internal and external cylindrical surface of the coaxial degree and axial positioning end face and the axis line verticality requirement etc..
　　Forth, the surface roughness of the surface of the work according to the spare parts of different, can have different surface roughness values, such as the surface of ordinary machine tool spindle bearing shaft neck mating surface roughness is Ra0.160.63um, Journal of roughness is Ra0.632.5um, with the increase of the machine speed and precision degree increase, shaft parts of rough surface degree requirements will also be getting smaller and smaller.
　　Dongguan Yize Mould Co.,Ltd is well known in producing core pins and sleeves.And yize mould will be NO.1 in China core pins and sleeves.We have the professional engineer to make sure the quality of the core pins and sleeves.