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NP1213, NP1313, NP1315, NP1415, NP1520, NP1620, NP2023, NP13, NP15, NP20
ONA
847490
Heat treatment is vital to achieve the good quality and performance of blow bars. Manganese blow bars usually are water toughened only Chrome white iron blow bars are quenched and tempered Martensitic steel blow bars are annealed, quenched and tempered. Heat treatment temperature and procedures must be carefully and precisely set in order to achieve expected hardness, toughness, micro structure, and also avoid cracking and deflecting on blow bars.
Machining is necessary for some blow bars to achieve good flatness, straightness and roughness on the mounting areas. Especially for long strip high chrome white iron blow bars, machining on mounting areas is always compulsory.
Inspection is the only way to ensure the blow bars qualified for being used on crushers. A comprehensive inspection should include:
Chemical Testing Ultrasonic testing on inner defects Penetration or Magnetic testing on cracks
Heat treatment is vital to achieve the good quality and performance of blow bars. Manganese blow bars usually are water toughened only Chrome white iron blow bars are quenched and tempered Martensitic steel blow bars are annealed, quenched and tempered. Heat treatment temperature and procedures must be carefully and precisely set in order to achieve expected hardness, toughness, micro structure, and also avoid cracking and deflecting on blow bars.
Machining is necessary for some blow bars to achieve good flatness, straightness and roughness on the mounting areas. Especially for long strip high chrome white iron blow bars, machining on mounting areas is always compulsory.
Inspection is the only way to ensure the blow bars qualified for being used on crushers. A comprehensive inspection should include:
Chemical Testing Ultrasonic testing on inner defects Penetration or Magnetic testing on cracks