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精密铸造常见的问题

Common problems in precision casting

第一个问题：

First question:

锤头卡死

Hammerhead death

解决方案：

Solution:

1、在生产中，经常测量温度，避免锤头、司筒温度过高；

1. In production, the temperature is often measured to avoid the excessive temperature of the hammer head and barrel.

2、选用优质的、不含杂质的合金材料，避免杂质黏着在锤头上。

2, choose high quality, non impurity alloy materials to avoid impurities sticking on the hammer head.

第二个问题：

The second question:

压射头卡在鹅颈

The shot head is stuck in the gooseneck.

解决方案：

Solution:

等设备处于常温，尝试转动锤头，如无法转动，则换司筒，将锤头取出。如果想要快速解决卡死问题，最好的是换料壶。

When the equipment is at room temperature, try rotating the hammer head, if it is unable to rotate, replace the cylinder and remove the hammer head. If you want to solve the stuck problem quickly, the best thing is to change the pot.

第三个问题：

The third question:

打料时打几十模料就打不出，要等几分钟后才能继续打料

Dozens of materials can not be played when beating, and it will take a few minutes before the material can be continued.

解决方案：

Solution:

看下料头顶端是否有亮点，如全是断面灰色，则说明堵咀了，可以将射咀温度适度调高，打离咀情况时间调低0.1到0.2秒，定模冷却水稍稍关小点。

See if there are any bright spots at the top of the blanking head. If all the sections are gray, it means that the nozzle is blocked, the temperature of the nozzle can be moderately raised, the time of knocking off the nozzle can be reduced by 0.1 to 0.2 seconds, and the cooling water of the fixed mould can be slightly turned off.

第四个问题：

The fourth question:

压铸薄壁件产品时易开裂

It is easy to crack when die-casting thin-walled parts.

解决方案：

Solution:

出现这个问题，可能是材料有问题或模具开设不好或工艺参数选择不当，尽量控制废料的比例不要超过30%，留模时间不宜过长，每mm壁厚3s左右，顶出延时也不能长，一般0.5-2s。

This problem may be due to material problems or inappropriate mold setting or process parameters, try not to control the proportion of waste more than 30%, die retention time should not be too long, about 3 seconds per mm wall thickness, ejection delay can not be long, generally 0.5-2 seconds.

第五个问题：

The fifth question:

材料偏硬，刀具易磨损

The material is hard and the tool is easy to wear.

解决方案：

Solution:

用原始材料配比，不用再生材料，采用专门为硬质合金而生产的宝石刀片。

Using the raw material ratio, no recycled material, the gem blade specially produced for cemented carbide is used.

第六个问题：

The sixth question:

铝压铸件在磨光时有黑斑

Aluminum die castings have black spots when they are polished.

解决方案：

Solution:

减少喷涂剂的浓度，改用别的喷涂剂；或加长喷涂后的吹风时间。

Reduce the concentration of spray agent, use other spray agents, or lengthen the blow time after spraying.

第七个问题：

The seventh question:

压铸过程中金属外溅

Metal splashing in die casting process

解决方案：

Solution:

重新安装模具；加大锁模力，调整压铸机，使动、定模安装板相互保持平行；在动模上增加支板，增加套板的刚度。

Re-install the die; increase the clamping force, adjust the die casting machine, so that the moving and fixing fixing fixing plates are parallel to each other; add the supporting plate on the moving die to increase the stiffness of the sleeve plate.

第八个问题：

The eighth question:

压铸件阳极氧化后有花纹产生

The pattern of die castings is produced after anodizing.

解决方案：

Solution:

喷涂、压射油散步不均、高速切换位置不当或氧化槽铜离子含量过高会造成花纹问题，因此可以让喷涂、压射油散布均匀，不聚齐在局部，或设置好高速切换位置，减少欠铸现象。

Spraying, non-uniform walking of injection oil, inappropriate high-speed switching position or excessive copper ion content in oxidation tank will cause pattern problems, so spraying and injection oil can be evenly distributed, not gathered locally, or high-speed switching position can be set up to reduce undercasting.

第九个问题：

The ninth question:

压铸模具粘料

Die casting mold sticky material