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一、犁铲1.报废条件和需修尺寸:(1)报废条件:①尖部折断;②铲宽小于90毫米.(2)需修尺寸:①刃口厚1.5毫米;②刃角大于40°;③胫刃角大于53°.2.修复方法:(1)犁铲宽度磨损在25毫米以内,可用砂轮磨锐,使刃口达1～0.5毫米.(2)犁铲宽度磨损超过25毫米时,就应展延.因新犁铲背部有贮备钢,一般可展延2～3次,具体方法如下:①加热:将需要展延的犁铲刃
First, the plow shovel 1. Scrap conditions and repair dimensions: (1) Scrapping conditions: ① tip break; ② Shovel width less than 90 mm. (2) Dimensions required: ① blade thickness 1.5 mm; ② edge angle greater than 40 °; ③ tibia blade angle greater than 53 ° .2 repair methods: (1) plow width width less than 25 millimeters, available grinding wheel sharpening, the edge up to 1 ~ 0.5 mm. (2) plow width of wear more than 25 Mm, it should be extended.Because the new plow shovel steel reserves back, generally can be extended 2 to 3 times, the specific method is as follows: ① heating: the need to extend the plow blade edge