CN109988977A - 一种绿篱机刀具生产工艺 - Google Patents
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Abstract
一种绿篱机刀具生产工艺,包括以下八个步骤:称量、熔融、浇铸、正火、第一次回火、第二次回火、第三次回火、后期处理,本发明克服了现有技术的不足,加工出的刀具变形小,硬度均匀,结构稳定,同时提高了刀具的韧性,促进了各元素的结合而减少析出,工艺简单实用,社会效益明显适合推广。
Description
技术领域
本发明涉及刀具加工技术领域,具体属于一种绿篱机刀具生产工艺。
背景技术
现绿篱机刀片在实际使用中,因磨损到一定程度而被废弃的比例不高,最大比例的是因刀片的脆性而折断,但工具钢的目的是利用其高强度来实现其作用的,而增加合金钢的韧性就会影响合金钢的强度,近年来发现,在合金钢中加入一些特点的元素,如钨、锰等在一定比例情况下,合金钢能够在保证强度的同时提高韧性,但在普通的合金钢熔铸工艺中,因为元素的溶解度的不同,特别是在浇铸过程中及后期,会导致对工具钢有利于强度又提高韧性的元素从组织中析出,自从粉末冶金技术被应用以来,提高工具钢中某类元素的比例成为可能,而且在工具钢的冶炼中得到应用。但是对于刀片类工具钢,因其要求使用更薄的材质,在采用粉末冶金技术生产过程中,因为温度变化相对大而出现元素析出问题,而导致刀片的内部变脆而容易折断。
发明内容
本发明的目的是提供了一种绿篱机刀具生产工艺,来解决在现有的刀具生产中,由于温度变化相对大而出现元素析出的问题,进而而导致刀片的内部变脆而容易折断等缺陷。
为解决上述问题,本发明所采取的技术方案如下:
一种绿篱机刀具生产工艺,包括以下步骤:
步骤一,称量:称取以下各原料所占质量百分比备用:硅0.4%、钼3.6%、 钴0.23%、钛0.13%、铜0.4%、铝0.2%、硼0.55%、稀土0.06%、碳2%、硅0.6%、铬3.6%、钒3%、钨4.2%、锰1.2%、锆0.04%、余量为铁;
步骤二,熔融:将步骤一所述的硅、钼、 钴、钛、硼、碳、硅、铬、钒、钨、锰、锆、铁,按计算好的量放入加热炉中,待加热熔化成液体后 再加入铜和铝及稀土,温度在 1200-1400℃保温2h;
步骤三,浇铸:在温度为1100±50℃进行恒温浇铸,得到粗坯A;
步骤四,正火:将粗坯A在800-900℃正火炉中保温2h后,进行淬火处理,得粗坯B;
步骤五,第一次回火:将粗坯B在温度为500℃-520℃的回火炉中回火2h,自然冷却,得粗坯C;
步骤六,第二次回火:将粗坯C在温度为400℃-420℃的回火炉中进行第二次回火2h,自然冷却, 得粗坯D;
步骤七,第三次回火:将粗坯D在温度为300℃-210℃的回火炉中进行第三次回火2h,自然冷却, 得粗坯E;
步骤八,后期处理:待刀具冷却后,用压力机整形后发黑处理,再用磨床磨刃口, 得成品。
进一步,所述稀土包含铌和钇,且比例为2:1。
本发明与现有技术相比较,本发明的实施效果如下:
本发明所述一种绿篱机刀具生产工艺,加工出的刀具变形小,硬度均匀,结构稳定,同时提高了刀具的韧性,促进了各元素的结合而减少析出,工艺简单实用,社会效益明显适合推广。
具体实施方式
下面结合实施例对本发明作进一步的描述,但本发明不仅限于这些实例,在为脱离本发明宗旨的前提下,所为任何改进均落在本发明的保护范围之内。
本发明所述的一种绿篱机刀具生产工艺,包括以下步骤:
步骤一,称量:称取以下各原料所占质量百分比备用:硅0.4%、钼3.6%、 钴0.23%、钛0.13%、铜0.4%、铝0.2%、硼0.55%、稀土0.06%、碳2%、硅0.6%、铬3.6%、钒3%、钨4.2%、锰1.2%、锆0.04%、余量为铁;
步骤二,熔融:将步骤一所述的硅、钼、 钴、钛、硼、碳、硅、铬、钒、钨、锰、锆、铁,按计算好的量放入加热炉中,待加热熔化成液体后 再加入铜和铝及稀土,温度在 1200-1400℃保温2h;
步骤三,浇铸:在温度为1100±50℃进行恒温浇铸,得到粗坯A;
步骤四,正火:将粗坯A在800-900℃正火炉中保温2h后,进行淬火处理,得粗坯B;
步骤五,第一次回火:将粗坯B在温度为500℃-520℃的回火炉中回火2h,自然冷却,得粗坯C;
步骤六,第二次回火:将粗坯C在温度为400℃-420℃的回火炉中进行第二次回火2h,自然冷却, 得粗坯D;
步骤七,第三次回火:将粗坯D在温度为300℃-210℃的回火炉中进行第三次回火2h,自然冷却, 得粗坯E;
步骤八,后期处理:待刀具冷却后,用压力机整形后发黑处理,再用磨床磨刃口, 得成品。
所述稀土包含铌和钇,且比例为2:1。
以上内容仅仅是对本发明构思所作的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离发明的构思或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
Claims (2)
1.一种绿篱机刀具生产工艺,其特征在于:包括以下步骤:
步骤一,称量:称取以下各原料所占质量百分比备用:硅0.4%、钼3.6%、 钴0.23%、钛0.13%、铜0.4%、铝0.2%、硼0.55%、稀土0.06%、碳2%、硅0.6%、铬3.6%、钒3%、钨4.2%、锰1.2%、锆0.04%、余量为铁;
步骤二,熔融:将步骤一所述的硅、钼、 钴、钛、硼、碳、硅、铬、钒、钨、锰、锆、铁,按计算好的量放入加热炉中,待加热熔化成液体后 再加入铜和铝及稀土,温度在 1200-1400℃保温2h;
步骤三,浇铸:在温度为1100±50℃进行恒温浇铸,得到粗坯A;
步骤四,正火:将粗坯A在800-900℃正火炉中保温2h后,进行淬火处理,得粗坯B;
步骤五,第一次回火:将粗坯B在温度为500℃-520℃的回火炉中回火2h,自然冷却,得粗坯C;
步骤六,第二次回火:将粗坯C在温度为400℃-420℃的回火炉中进行第二次回火2h,自然冷却, 得粗坯D;
步骤七,第三次回火:将粗坯D在温度为300℃-210℃的回火炉中进行第三次回火2h,自然冷却, 得粗坯E;
步骤八,后期处理:待刀具冷却后,用压力机整形后发黑处理,再用磨床磨刃口, 得成品。
2.根据权利要求1所述的一种绿篱机刀具生产工艺,其特征在于:所述稀土包含铌和钇,且比例为2:1。
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CN115256060A (zh) * | 2022-08-11 | 2022-11-01 | 宁蒗恒泰农业投资开发有限公司 | 一种果树专用嫁接刀具生产方法 |
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CN115256060A (zh) * | 2022-08-11 | 2022-11-01 | 宁蒗恒泰农业投资开发有限公司 | 一种果树专用嫁接刀具生产方法 |
CN115256060B (zh) * | 2022-08-11 | 2023-12-01 | 宁蒗恒泰农业投资开发有限公司 | 一种果树专用嫁接刀具生产方法 |
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