Injection mold factory: matters needing attention in injection mold polishing
2022-03-10
Injection mold polishing has two purposes; one is to increase the smoothness of the mold, so that the surface of the product produced from the mold is smooth, beautiful and beautiful; Can't take it off.
The matters that should be paid attention to in the polishing of the injection mold of the injection mold factory are as follows:
(1) When a new mold cavity starts to be processed, the surface of the workpiece should be checked first. The injection mold factory cleans the surface with kerosene, so that the oilstone surface will not stick to dirt and lose the cutting function.
(2) Grinding rough lines should be carried out in the order of difficulty first and then easy, especially for some difficult-to-grind dead corners, and the deeper bottom should be ground first.
(3) Some workpieces may have multiple pieces assembled together for polishing. First, the rough pattern or fire pattern of a single workpiece should be ground separately, and then all the workpieces should be ground together until smooth.
(4) For workpieces with large plane or side plane, use whetstone to remove rough grains, and then use a straight steel sheet for light transmission inspection to check whether there is any unevenness or inversion. Difficulty in demolding or part strain.
(5) In order to prevent the attention of the mold workpiece from being inverted or there are some bonding surfaces that need to be protected, it can be pasted with a saw blade or on the edge with sandpaper, so that the ideal protection effect can be obtained.
(6) Pull the mold plane forward and backward, and flatten the handle of the oil stone as much as possible. The injection mold factory should not exceed 25°; because the slope is too large, the force is rushing from top to bottom, which will easily lead to a lot of rough lines on the workpiece. .
(7) If the plane of the workpiece is polished with a copper sheet or a bamboo sheet pressed with sandpaper, the sandpaper should not be larger than the tool area, otherwise it will be ground where it should not be ground.
(8) The shape of the grinding tool should be close to the surface shape of the mold, so that the injection mold factory can ensure that the workpiece is not ground and deformed.
If you do the above points, the injection mold will have a beautiful polished appearance.
