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CN107779584A - 一种割草刀片热处理工艺 - Google Patents

一种割草刀片热处理工艺 Download PDF

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CN107779584A
CN107779584A CN201610722599.9A CN201610722599A CN107779584A CN 107779584 A CN107779584 A CN 107779584A CN 201610722599 A CN201610722599 A CN 201610722599A CN 107779584 A CN107779584 A CN 107779584A
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workpiece
stove
heating processing
temperature
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李楠
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Harvester Elements (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

本发明提供一种割草刀片热处理工艺，其热处理工艺包括以下步骤：a1正火处理：工件在炉中加热到温度为727～912℃时，保温10～20分钟，工件出炉后置于空气中自然冷却；a2淬火和回火处理：工件在炉中加热到温度为927～1000℃时，保温10～30分钟，工件出炉后放入油内冷却；a3碳氮共渗：工件在炉中先加热到温度为900～950℃时渗碳之后降温至500～570℃，保温1～2小时，出炉后油冷；a4钝化处理：工件放置在钝化液内加热到温度为30～40℃时，浸泡3‑20分钟或更长时。本发明割草刀片热处理工艺，提高强度、硬度和韧性，加强表面耐磨性，刀刃锋利坚固又耐用。

Description

一种割草刀片热处理工艺
技术领域
本发明涉及一种刀片热处理工艺，特别涉及一种割草刀片热处理工艺。
背景技术
割草刀片用于割草机修剪草坪、植被等，它是由固定圈、刀体、刀刃组成。固定圈用来安装在转轴上，电机转动从而带动刀片高速旋转，节省了除草工人的作业时间，减少了大量的人力资源。但在面对情况复杂的草坪或田地，特别是存在大量石头和树根，以往使用的刀片不在具备锋利，出现刀片崩裂，造成人员劳动强度大，设备成本高。
发明内容
【1】要解决的技术问题
本发明要解决的技术问题是提供一种高强度、高硬度和良好的韧性，刀刃锋利坚固又耐用的割草刀片热处理工艺。
【2】解决问题的技术方案
本发明提供一种割草刀片热处理工艺，材质为1Cr13钢包括化学成分：碳：小于等于0.15；锰：小于等于1；硅：小于等于1；铬：11.50～13.50；磷：小于等于0.030；硫：小于等于0.030；其他：小于等于0.60；其热处理工艺包括以下步骤：
a1正火处理：工件在炉中加热到温度为727～912℃时，保温10～20分钟，工件出炉后置于空气中自然冷却，改变金属内部成分组成，增强机械性能；
a2淬火和回火处理：工件在炉中加热到温度为927～1000℃时，保温10～30分钟，工件出炉后放入油内冷却，高硬度、良好的耐磨性，降低脆性；
a3碳氮共渗：工件在炉中先加热到温度为900～950℃时渗碳之后降温至500～570℃，保温1～2小时，出炉后油冷，提高钢件表面硬度和抗疲劳性；
a4钝化处理：工件放置在钝化液内加热到温度为30～40℃时，浸泡3-20分钟或更长时，去除刀刃细小裂纹开口。
进一步的，所述钝化处理在刀面形成均匀钝化处理膜，减缓刀具磨损。
【3】有益效果
本发明割草刀片热处理工艺，提高强度、硬度和韧性，加强表面耐磨性，刀刃锋利坚固又耐用。
具体实施方式
下面详细介绍本发明。
本发明提供一种割草刀片热处理工艺，其材质为1Cr13钢包括化学成分：碳：小于等于0.15；锰：小于等于1；硅：小于等于1；铬：11.50～13.50；磷：小于等于0.030；硫：小于等于0.030；其他：小于等于0.60；其热处理工艺包括以下步骤：
a1正火处理：工件在炉中加热到温度为727～912℃时，保温10～20分钟，工件出炉后置于空气中自然冷却，使晶粒细化和碳化物分布均匀化，去除材料的内应力，稳定工件的尺寸，防止变形与开裂；
a2淬火和回火处理：工件在炉中加热到温度为927～1000℃时，保温10～30分钟，工件出炉后放入油内冷却，以提高硬度、耐磨性，降低脆性；
a3碳氮共渗：工件在炉中先加热到温度为900～950℃时渗碳之后降温至500～570℃，保温1～2小时，出炉后油冷，提高钢的表面硬度，耐磨性和疲劳强度；
a4钝化处理：工件放置在钝化液内加热到温度为30～40℃时，浸泡3-20分钟或更长时，在刀面形成均匀钝化处理膜，处理完成后取出，用清水冲洗干净，最好再用碱水或石灰水冲洗中和，去除刀具刃口微观缺口减缓磨损。
本发明割草刀片热处理工艺，提高强度、硬度和韧性，加强表面耐磨性，刀刃锋利坚固又耐用。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (2)

1.一种割草刀片热处理工艺，其特征在于：材质为1Cr13钢包括化学成分：碳：小于等于0.15；锰：小于等于1；硅：小于等于1；铬：11.50～13.50；磷：小于等于0.030；硫：小于等于0.030；其他：小于等于0.60；其热处理工艺包括以下步骤：
a1正火处理：工件在炉中加热到温度为727～912℃时，保温10～20分钟，工件出炉后置于空气中自然冷却；
a2淬火和回火处理：工件在炉中加热到温度为927～1000℃时，保温10～30分钟，工件出炉后放入油内冷却；
a3碳氮共渗：工件在炉中先加热到温度为900～950℃时渗碳之后降温至500～570℃，保温1～2小时，出炉后油冷；
a4钝化处理：工件放置在钝化液内加热到温度为30～40℃时，浸泡3-20分钟或更长时。
2.如权利要求1所述的割草刀片热处理工艺，其特征在于：所述钝化处理在刀面形成均匀钝化处理膜。
CN201610722599.9A 2016-08-24 2016-08-24 一种割草刀片热处理工艺 Pending CN107779584A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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