[China Aluminum Industry Net] Aluminum extrusion products have rough longitudinal or transverse sipes on the surface, and scratches. Scratches from the surface are mostly caused by foreign matter on the mold or rough machining at the empty knife. There is also a raised scratch at the corner of the product, which is due to cracks in the extrusion die. Lateral scratches or scratches are mainly due to the firmness of the cold bed when the product is transported horizontally from the sliding table to the finished sawing table. Objects are scratched on the product, and some are produced during loading and handling. Scratches and scratches are common surface defects in aluminum extrusion.
The main elimination methods are:
1) The extrusion die working belt should be smooth and smooth. The extrusion die should also be smooth.
2) Check carefully when installing the mold to prevent the use of small cracks in the mold. Care should be taken when designing the corner radius.
3) Check the cold bed and finished product storage bench frequently to prevent scratching of the product with hard protrusions.
4) When loading materials should be placed more than the soft article of the article, transport, lifting should be smooth and careful operation.
Lithium Fluoride Basic Information
Product Name: Lithium fluoride
Mol File: 7789-24-4.mol
Lithium Fluoride Chemical Properties
Melting point: 845 Â°C(lit.)
Boiling point: 1681 Â°C
Density: 2.64 g/mL at 25 Â°C(lit.)
Storage temp. :Store at +5Â°C to +30Â°C.
Solubility: Soluble in 0.29 g/100 mL (20Â°C) and hydrogen fluoride. Insoluble in alcohol.
Form: random crystals
Color: White to off-white
Specific Gravity: 2.635
PH: 6.0-8.5 (25â„ƒ, 0.01M in H2O)
Water Solubility: 0.29 g/100 mL (20 ÂºC)
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