注塑模（mó）具隨著產品的外觀要求千變萬化，尺寸和精（jīng） 密度的掌握關重要，在設計尺（chǐ）寸時需要多方麵考慮。

　　With the ever-changing appearance requirements of injection mold products, it is very important to master the size and precision.

　　，模（mó）具加（jiā）工設從塑件外形美觀的角度（dù）考（kǎo）慮，塑件由（yóu）於受（shòu）融料流動的因素，流（liú）動性差的（de）塑件融料和壁比較薄的塑件，設（shè）計的尺寸（cùn）盡量簡化，否則容易導（dǎo）致融料填充不（bú）足，影響產品外形美觀，一定需要大的尺寸時（shí），可以選擇換塑件原（yuán）料或稍作調整壁的厚度。

　　First of all, the mold processing design is considered from the perspective of the appearance of the plastic parts. Because of the melt flow, the plastic parts with poor fluidity melt and thin wall, the design size should be simplified as far as possible, otherwise it is easy to lead to insufficient melt filling and affect the appearance of the product. When a large size is needed, you can choose to change the raw materials of the plastic parts or slightly adjust the wall thickness

　　濟南模椇廠

　　濟南模具廠

　　Jinan mould factory

　　其次，產品的尺寸精 確度。塑件融料（liào）在（zài）生產過程中會產生一定的收縮率（lǜ）和稍微擴張，主要是塑膠融料在成（chéng）形的過程中會導致尺寸收縮，造成尺寸的不精 確。收縮過程（chéng）主（zhǔ）要有（yǒu）成形收縮（suō）和後收縮，受到成（chéng）形收縮的影（yǐng）響比較大，造成收縮的因素（sù）有多種（zhǒng），在模具加（jiā）工的工藝（yì）上，需考慮（lǜ）塑件的原料使用性能，避免造（zào）成尺寸不精 確。

　　Secondly, the dimensional accuracy of the product. Plastic melt in the production process will produce a certain shrinkage and slight expansion, mainly plastic melt in the forming process will lead to size shrinkage, resulting in inaccurate size. The shrinkage process mainly includes forming shrinkage and post shrinkage, which are greatly affected by forming shrinkage. There are many factors causing shrinkage. In the process of mold processing, the material performance of plastic parts should be considered to avoid inaccurate size.

　　模具的尺寸和（hé）精度需要從塑件（jiàn）在成型過（guò）程中遇到的情況設計合理，降低生產成本，提高產（chǎn）品質量.

　　The size and precision of the mould should be designed reasonably according to the situation in the forming process, so as to reduce the production cost and improve the product quality