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  • Picks for roadheader

Header picks

The cutting head of the roadheader produced by Henan Coal Science Abrasion Technology Co., Ltd. uses 42CrMo material to be cold forged at one time, and the mechanical strength of the gear is high. The alloy head uses a coarse-grained tungsten-cobalt alloy head, which can improve the service life of the cutting head of the roadheader.

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掘进机截齿 Header picks

The pick of the roadheader is a very important component of the comprehensive mining equipment of a coal mine, and its performance directly affects the mining efficiency. After analyzing the cutting mechanism of the picks and the combined forces of compression, shear and impact under light, medium and heavy conditions of cutting coal seams, coal-rock mixed layers and rock layers, and analysis of the reasons for the failure of the picks, Henan Academy of Coal Science Abrasion Technology Co., Ltd. has produced "non-spark wear-resistant picks", which has the following characteristics:

One: The pick tooth body is preferably made of high-strength alloy structural steel. It adopts a single cold forging process. The internal structure is uniform and the grains are fine.
Second: The outer surface of the upper cone of the pick is reinforced by micro-arc plasma cladding technology, which improves the overall wear resistance of the pick and can effectively prevent the alloy head from falling off.
3: The alloy head uses coarse-grained tungsten-cobalt cemented carbide, which has the characteristics of uniform hardness, impact resistance, and wear resistance, and is suitable for harsh working conditions under the mine.
Four: The pick-cutting solder is made of copper-based solder and flux imported from the United States. The welding strength is increased by 30%, which effectively guarantees the welding strength of the cemented carbide head and the tooth body.
Five: When the pick cone is brazed with a hard alloy head, the outer surface of the alloy head and the inner surface of the matching hole are micro-porous, which increases the area of brazing filler metal during brazing and strengthens Wetness between solder, tooth head and tooth body.
Six: Ceramic particles are added to the cladding material, and no spark will be generated when the cladding layer collides with the rock.
Seven: Micro-arc plasma cladding technology of wear-resistant hardened picks, the cladding layer and the substrate are deeply combined, uniform hardness, wear resistance, impact resistance, thereby greatly improving its service life.
Eight: Aigang series of coal picks have obtained 2 national invention patents and 3 utility model patents.


技术参数: Technical parameters:

category model Floss material Cutting tooth processing method Note
Header picks
200HA 42CrMo Cold forging
200H 42CrMo Cold forging
IGS150 42CrMo Cold forging
IGS135A 42CrMo Cold forging 38 / 22-25
IGS135 42CrMo Cold forging
IGS130 42CrMo Cold forging 47/19
IGS120 42CrMo Cold forging
IGS117 42CrMo Cold forging
IGS100 42CrMo Cold forging PT-1HD
IGS85 42CrMo Cold forging

研究与应用 Research and Application

Henan Aigang roadheader picks have been used in Shanxi, Shaanxi, Gongyi, Sanmenxia and other large mines, and their service life is 2 ~ 3 times that of similar products, which has won recognition and praise from application customers.

The following picture is the shipment picture of the Aigang brand roadheader sold to a coal mine in Henan:



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Henan Coal Science Academy Wear-resistant Technology Co., Ltd. sincerely appreciates your presence and solemnly promises you: We will provide you with satisfactory and thoughtful service. If you have any comments or suggestions about our products or services, please contact us. Thank you for your support!

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