How to check the precision shrapnel of hardware
Release time:
2021-06-04
The production of hardware precision shrapnel is an additional skill to process materials (metal or non-metal) into parts (or semi-finished products) with cold stamping dies. Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to materials at room temperature to break or plastically deform them, and then obtain the required parts.
Hardware precision shrapnelThe production is to use stamping die cold stamping materials.(Metal or non-metal)Machined into parts(or semi-finished products)An additional skill. Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to materials at room temperature to break or plastically deform them, and then obtain the required parts.
Hardware precision shrapnelEverywhere in life. It is a mechanical part that uses elasticity to work. It is usually made of metal shrapnel steel. Hardware precision shrapnel is used to control the movement of machine parts, severe impact or vibration, store energy, measure force, etc. Hardware precision shrapnel is widely used in machine and appearance. The variety of hardware precision shrapnel is messy and diverse. According to the shape, there are mainly spiral hardware shrapnel, scroll hardware shrapnel, flat hardware shrapnel, etc.
Then how to checkHardware precision shrapnelWhat about it?
Touch inspection: Wipe the cover surface with clean gauze. The inspector shall wear touch gloves and touch the surface of the stamping in the longitudinal direction. This method of inspection depends on the experience of the inspector. If necessary, the suspect area can be polished with an oil stone and verified, but this method is an effective and fast inspection method.
Flexible gauze polishing: wipe the surface of the cover with a clean gauze. The flexible sand net is used to adhere closely to the surface of the stamping part and polish to the entire surface in the longitudinal direction, and it is easy to find any pitting and indentation.
Oil application inspection: wipe the surface of the outer cover with clean gauze. Then use a clean brush to evenly apply the entire surface of the metal stamping in the same direction. Inspect oiled stamped parts in bright light. It is recommended that the stamping be erected in the direction of the body. In this way, it is easy to find tiny pits, pits and ripples on the stamping parts.
Oil stone grinding: clean the surface of the outer cover with clean gauze first, and then use oil stone (2020100mm or larger)Grinding, locally with a relatively small whipstone(Such8100mmsemicircular oilstone)Polished into a circular arc shape, not easy to contact. The particle size of the oilstone depends on the surface condition(Such as roughness, electroplating, etc.). Fine grained oilstone is recommended. The grinding direction of the oilstone is basically longitudinal, which is attached to the surface of the stamping part, and some more parts can compensate for the horizontal grinding.
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