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Titanium rod light weight, high strength, superior mechanical properties, excellent corrosion resistance. It is widely used in: aerospace, ships, auto parts, bicycle parts, marine engineering desalination, mariculture, offshore oil drilling, sea water pipelines; power industry in the ocean thermal power station, condenser, steam Turbine Titanium Blade; Chlor-Alkali, Soda Ash, Urea, and Vacuum Salt Chemical Petrochemical Industry Petrochemical; Electrolytic, Electroplating in Metallurgical Industry; Textile, Papermaking, Fuel in Light Industry; ; Decoration in the construction industry; manufacture of sports equipment, manufacture of computers, cameras, watches, eyeglasses, cell phones, kitchenware, and handicrafts in daily life.
1: The chemical composition of titanium and titanium alloy bar should be consistent with the provisions of GB / T 3620.1, the demand side retest, the chemical composition of the allowable deviation should be consistent with the provisions of GB / T 3620.2.
2: The diameter or length of the hot-worked bar and its tolerances shall comply with the requirements of Table 1.
3: After thermal processing by light (grinding) light bar and cold-rolled, cold-drawn bar diameter tolerances shall comply with the provisions of Table II.
4: after thermal processing by light (grinding) light rod non-circularity should not be greater than half its size tolerance.
5: The length of the bar in working state is 300-6000mm, the length of the bar in annealed state is 300-2000mm, the length of length or length should be within the range of the length of the bar. The allowable deviation of length should be + 20mm ; Double length should also be included in the amount of bar incision, the amount of each incision 5mm. Length or multiples of length should be specified in the contract.
In the process of titanium rod grinding there is more serious grinding wheel adhesion, grinding force and grinding temperature are high, so the occurrence of grinding burns and cracks briefly. Grinding titanium rods with conventional abrasives can result in abrasive burns and cracks on the grinding surface, even at very low grinding depths. Roughly manifested as brown spots, hairline cracks, the direction and the grinding direction straight, with a large amount of grinding the surface there will be fish scaly folds and plastic deformation of metal deposits.
Abrasive particles and the workpiece bonded to each other, both the middle of the physical adsorption effect, but also the chemical adsorption effect, coupled with the relatively sliding shear force, the processed material to the abrasive transfer, which is the entire process of wheel adhesion. Grinding wheel adhesion is very simple block, the grinding zone temperature increases, the grinding surface along the workpiece distribution layer type burns, accompanied by metamorphic layer and the remaining stress.
The use of titanium