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Fully transparent type: refers to the escalator whose handrail bottom plate is fully transparent glass. According to the shape of the skirting line,walk escalator， it can be divided into curved glass type and flat glass type.
Opaque type: refers to the escalator with the handrail bottom plate made of opaque metal or other materials. Because the armrest bracket is fixed on the upper part of the skirting line, and the armrest circulates on the track of the armrest bracket, the stability of the opaque type is better than that of the fully transparent type.
Translucent: Refers to the translucent handrail skirting, such as the handrail skirting made of translucent glass and other materials.
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Elevator construction safety precautions
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The precautions for using the grinder are as follows:
1. The grinding surface of the grinding wheel must be trimmed frequently. When the tool is found to be severely beaten, abrasive wheel ，it should be trimmed with a diamond pen in time.
2. The grinding wheel is thin and small. Do not use when severely worn. It should be replaced in time to ensure safety.
3. The power should be turned off after grinding, and the grinding machine should not be idling. At the same time, the dust in the protective cover should be removed frequently, and the spindle grease should be checked and replaced regularly.
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Storage Requirements for Grinding Wheels
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With the rapid development of the electronics industry, electronic circuit board integration is increasingly high, antistatic plastic ，the high density of electronic components on the main board, the compact wiring, and even the widespread use of surface-mounted components, are prone to electrostatic damage circuit board card.
A U.S. agency in a large-scale communications system when testing integrated circuits, found that a third of the faulty integrated circuits were electrostatic discharge breakdown. Packaging products with anti-static film can prevent static damage to integrated circuits.
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Antistatic modification method of polypropylene film
With the rapid development of the electronics industry, electronic circuit board integration is increasingly high, antistatic plastic ，the high density of electronic components on the main board, the compact wiring, and even the widespread use of surface-mounted components, are prone to electrostatic damage circuit board card.
A U.S. agency in a large-scale communications system when testing integrated circuits, found that a third of the faulty integrated circuits were electrostatic discharge breakdown. Packaging products with anti-static film can prevent static damage to integrated circuits.
Diversity of raw plastics: Under the principle of rewarding functionality and first-class product or service, raw plastics parts with excellent technical functions are often identified to shape products, tooling manufacturing companies ，which not only facilitates the molding of goods, but also benefits Improve product support life of molds.
Mold Design and Style: Considering the auxiliary life of the mold, a composition with very good durability and firmness, easy to repair, can extend the auxiliary life of the mold.
Mold substances and heat treatment methods: The use of plastic mold metals with excellent mechanized components and excellent processability can improve the molding quality and mold life of plastic-like components. In addition, it is necessary to reasonably arrange high-temperature remedial methods in the mold production process, and strictly control the thermal treatment conditions.
Mold setting and surface treatment: The reduction of the mold should strictly ensure the rounded corner radius, the correct series and the smooth connection of the arc in the size conversion. Surface enhancement treatment can effectively improve the hardness and wear resistance of the cavity area,
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Do you know the measures to improve the quality of molds?
Daily maintenance of injection molding machine