<p id="lxjj3"></p>

        <menuitem id="lxjj3"></menuitem>

          <menuitem id="lxjj3"><p id="lxjj3"><var id="lxjj3"></var></p></menuitem>
          <menuitem id="lxjj3"><p id="lxjj3"><var id="lxjj3"></var></p></menuitem>

          Welcome to the official website of Dongguan Fuhong Hardware Co., LTD.

          Fuhong Hardware Co., LTD

          Hardware Provider

          Technical professional, high quality, strict management

          frequently asked question
          Your location: Home page > News Cente > frequently asked question
          What are the main reasons for premature and permanent failure of hardware accessories?
          Release Time:2019-10-29View count:55
          Generally speaking, the hardware parts we produce will be designed and manufactured according to the actual situation. However, after a period of use, the mold may make mistakes or permanently fail. Today, the editor of Jinjue Hardware will answer this question for everyone.

          1) The material selection of the main working parts of the mold is improper. Poor material performance and lack of wear resistance; The mold steel has not been refined and has a large number of smelting defects; The forging process for convex and concave molds and forging blanks is not perfect, and there are residual heat treatment hazards.

          2) The design of the mold structure is problematic, and the structure of the stamping die is unreasonable. There is no reinforcement device designed for the slender punch, resulting in clumping at the discharge port, and excessive discharge force exacerbating the punch's ability to withstand alternating loads.

          3) The imperfect mold making process is mainly manifested in the poor internal quality of convex and concave forging blanks, as well as problems with heat treatment technology and process, resulting in incomplete quenching of convex and concave molds, soft spots, and uneven hardness. Sometimes micro cracks or even cracks occur, grinding and polishing are not in place, and the surface roughness value is too large.

          4) Without lubrication or with lubrication but with poor effectiveness.