一次性餐具模具的冷却流程需要怎么做？

1. Try to keep the plastic parts shrink evenly and keep the heat balance of the mold.

2、如果冷却水孔的数量大约大，孔径大约大，则对塑料零件的冷却成果大约均匀。根据经验，冷却水孔线与空腔壁的距离应为冷却水孔直径的1~2倍（正常12~15mm），冷却水孔距约为水孔直径的3~5倍，水孔直径约为8~12mm。

2. If the number of cooling water holes is about large and the hole diameter is about large, the cooling effect of plastic parts is about uniform. According to experience, the distance between the center line of the cooling water hole and the cavity wall should be 1 ~ 2 times of the diameter of the cooling water hole (normal 12 ~ 15mm), the center distance of the cooling water hole is about 3 ~ 5 times of the diameter of the water hole, and the diameter of the water hole is about 8 ~ 12mm.

3、冷却水孔与空腔表面之间的距离应尽可能相等。当塑料件的壁厚均匀时，冷却水孔与型腔表面之间的距离应处处相等。当塑料件的壁厚不均匀时，应在壁厚处加强冷却，水孔应靠近型腔，但距离不应小于10mm。

3. The distance between the cooling water hole and the cavity surface shall be as equal as possible. When the wall thickness of the plastic part is uniform, the distance between the cooling water hole and the cavity surface should be equal everywhere. When the wall thickness of plastic parts is uneven, the cooling shall be strengthened at the wall thickness, and the water hole shall be close to the cavity, but the distance shall not be less than 10mm.

4、加强浇口冷却。通常来说，在注射成型过程中，浇口附近的温度较高，距离浇口越远，温度越低。因此，有需要加强浇口处的冷却，也就是说，冷却水从闸门附近流入。

4. Strengthen gate cooling. Generally speaking, in the process of injection molding, the temperature near the gate is higher, and the farther away from the gate, the lower the temperature. Therefore, it is necessary to strengthen the cooling at the gate, that is, the cooling water flows in from near the gate.

5、入口和出口之间的温差应减小。如果进出水温差过大，一次性餐具模具的温度分布就会不均匀。材料温度越低，流动性越低。对于矩形模具，通常沿模具宽度开水孔，使进出水温差不大于5℃。

5. The temperature difference between inlet and outlet should be reduced. If the difference of inlet and outlet water temperature is too large, the temperature distribution of disposable tableware mold will be uneven. The lower the material temperature, the lower the fluidity. For rectangular molds, water holes are usually opened along the width of the mold to make the inlet and outlet water temperature difference no more than 5 ℃.

6、合理选择冷却水道的形式。对于收缩较大的塑料件（聚乙烯），应沿收缩方向设置冷却水孔。

6. Reasonably select the form of cooling water channel. For plastic parts (polyethylene) with large shrinkage, cooling water holes shall be set along the shrinkage direction.

7、合理确定冷却水管接头位置。为了不影响操作，进出水管接头通常设置在注塑机背面模具的同一侧。

7. Reasonably determine the position of cooling water pipe joint. In order not to affect the operation, the inlet and outlet pipe joints are usually set on the same side of the mold on the back of the injection molding machine.

8、冷却系统的水道应尽量避免与一次性餐具模具上的其他机构（如推杆孔、小芯孔等）发生干涉，设应充分考虑这些因素。

8. The water channel of the cooling system should try to avoid interference with other mechanisms on the disposable tableware mold (such as push rod hole, small core hole, etc.), and these factors should be fully considered in the design.

9、冷却水管进出口接头应预埋在模板内，以避免搬运时损坏模板。较好分别标记入口和出口，如“入”和“出”。

9. The inlet and outlet joints of cooling water pipes shall be embedded in the formwork to avoid damage to the formwork during handling. It is better to mark the entrance and exit respectively, such as "in" and "out".