试注塑过程中，应详细记录模具状态和工艺参数，对不合格的模具应及时进行返

During the trial injection process, the mold status and process parameters should be recorded in detail, and the unqualified mold should be repaired in time. <br>Maintenance of the <br>mold During the use of the mold, normal wear or abnormal damage will occur. The majority of abnormal damage is caused by improper operation, such as the mold is closed before the insert is stabilized, causing the cavity to be missing, or the core is thin. When the plastic part cannot be demolded, hammer it with a hammer Strike to bend the core. <br>In general, there are several situations to pay attention to: <br>① The core or guide post bends. <br>② The cavity is partially damaged, most of them are still good. <br>③ Because the hardness of the cavity material is too low or the precision of the parts is too bad, the parting surface is not tight after a period of use, so that the overflow edge is too thick, which affects the quality of the parts.

In the process of test injection molding, the mold status and process parameters should be recorded in detail, and the unqualified mold should be repaired in a timely manner.<br>Maintenance of molds<br>Mold during use, will produce normal wear or abnormal damage. The vast majority of abnormal damage is due to improper operation, such as the insert did not stabilize the fit mold, resulting in the cavity is missing, or the core is fine, when the mold is not molded, with the hammer gravity knock and bend the core.<br>In general, there are several situations to be aware of:<br>(1) The core or guide column is bent.<br>(2) Partial damage to the cavity, most of which is still good.<br>(3) Because the cavity material hardness is too poor or the precision of the assembly is too poor, after the use of a period of time the parting surface is not tight, so that the overflow edge is too thick, affecting the quality of the assembly.

During the injection test, the mold status and process parameters shall be recorded in detail, and the unqualified mold shall be repaired in time.<br>Mold maintenance<br>During the use of the mould, normal wear or abnormal damage will occur. Most of the abnormal damage is caused by improper operation, such as closing the mold when the insert is not placed stably, causing the cavity to be broken, or the core is relatively thin. When the plastic part cannot be demoulded, the core will be bent by hitting it with the hammer gravity.<br>In general, the following situations should be noted:<br>① Bending of core or guide post.<br>② Most of the cavity damage is good.<br>③ Because the hardness of the cavity material is too low or the accuracy of the part is too poor, the parting surface is not tight after a period of use, so the overflow edge is too thick, which affects the quality of the part.<br>