Common rivets
Commonly used are semi-circular heads, flat heads, semi-tubular rivets, solid rivets, countersunk rivets, blind rivets, hollow rivets, which are usually riveted by their own deformation connection. (Generally less than 8 mm for cold riveting, larger than for hot riveting.) But there are exceptions, such as the nameplate on the three-ring lock, which is riveted with the interference of the rivet and the lock body hole.
Special rivet
There are also pairs of rivets, which are special. Divided into two parts, the thicker section of the capped rod body has a hole in the center, and the thinner part of the capped rod body has an interference fit. When riveting, push the thin rod into the thick rod.
Grinding Glass Microsphere
1. To select glass beads in types, sizes and quantity in accordance with viscosity, rigidity and dispersal of the grinded materials.
2. To clean glass beads and mill's inside before the grinding processed.
3. To input the grinded materials firstly and a curtain amount of glass beads later. To add continuously glass beads till 70%~80% of the mill is full.
4. To forbid to keep glass beads funning with little grinded material for a long time, as the glass beads inside the mill are easily broken at high speed operation.
5. To add new glass beads to ensure the quality and efficiency of grinded materials.
Grinding Glass Beads are mainly used for the disperser, grinding media of industries, such as coloring, paint, ink, coatings, resins, chemical engineering, with the advantages of smooth surface, even size, high hardness, good chemical stability. Thanks to the characteristics of heat-resistant, wearable, compression strength, the filling-type bead could be used to improve glass fibre reinforced plastic, rubber, and so on.
The glass bead can be produced based on the standard of countries or areas, such as EN1423/1424, AASHTO M247, BS6088, JIS R3301 and KS L2521 etc.
Grinding Glass Beads
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