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Roll surface wear-resisting repair technology for cement roller press

A technology of cement rollers and roller presses, which is applied in the field of industrial anti-wear, can solve problems such as difficult research, and achieve the effects of life extension, good economic benefits and social benefits

Inactive Publication Date: 2011-01-19
JIANGXI HENGDA HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, it is still difficult to study the on-site surfacing repair of roller presses, and there is no ideal, practical, economical and reliable protective layer solution

Method used

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  • Roll surface wear-resisting repair technology for cement roller press
  • Roll surface wear-resisting repair technology for cement roller press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] 1. Materials used: open arc welding flux cored wire for each layer.

[0019] 2. Equipment used: carbon arc gas explosion or electric melting explosion equipment, automatic roll welding machine, liquefied petroleum gas heating device, etc.

[0020] 3. Testing instruments: ultrasonic flaw detector, etc.

[0021] Extrusion roller 1200×φ800 The specific implementation process is: use carbon arc gas explosion or electric melting explosion to pretreat the roller surface and remove the fatigue layer. Then grind the roller surface to remove the sticky particles and cracks, and a small amount of local fatigue layer can be removed by carbon arc gouging. In order to prevent the molten pool from flowing during surfacing, a retaining ring must be welded at both ends of the roller surface, and the retaining ring and the roller surface are on the same curved surface. Put the surface-treated roller body on the automatic turntable, and use an ultrasonic flaw detector to conduct ultras...

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Abstract

The invention relates to roll surface wear-resisting repair technology for a cement roller press, which belongs to the technical field of industrial wear resistance. The technology comprises the following steps of: 1) performing pretreatment on a roll surface on the surface of the roller press by using carbon arc air explosion or electrical melting and explosion to remove a fatigue layer; 2) performing ultrasonic flaw detection on a roll shaft and the roll surface by using an ultrasonic flaw detector, preheating a roll to about 150 DEG C after the roll is confirmed to be qualified, and performing overlaying by using open arc flux-core wires; 3) overlaying an austenite alloy on the first layer of the surface of a roll body as an underlayer; 4) overlaying a transition layer on a second layer; 5) overlaying a wear-resisting layer on a third layer; and 6) overlaying a decorative-pattern layer on a fourth layer. Compared with the prior art, the roll surface wear-resisting repair technology has the technical advantages of doubling the service life of the roller press repaired by the technology and reducing the cost by 2 / 3, along with capability of performing repeated welding of many times and good economic benefits and social benefits.

Description

technical field [0001] The invention relates to a wear-resistant repair technology for the roller surface of a cement roller press, and belongs to the field of industrial anti-wear technology. Background technique [0002] Roller press is a high-efficiency, energy-saving and widely used grinding equipment imported from abroad in the early 1990s. It is suitable for grinding cement raw materials and clinker. Its main feature is high pressure. It is powdery or broken after rolling. [0003] The key part of the cement extrusion equipment is the extrusion roller, which is used for extrusion and crushing of cement raw meal and clinker. The other parts of the roller press are all to ensure the normal operation of the roller and give full play to its performance, so the roller occupies the primary position in the structure of the roller press. A pair of extrusion rollers squeeze the material 25-50t / h on average, and work continuously for 24 hours. The extrusion roller of the roll...

Claims

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Application Information

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IPC IPC(8): B23P6/00
Inventor 不公告发明人
Owner JIANGXI HENGDA HI TECH CO LTD
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