CN105673806A - 一种高密度高强度行星齿轮 - Google Patents
一种高密度高强度行星齿轮 Download PDFInfo
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- CN105673806A CN105673806A CN201610141122.1A CN201610141122A CN105673806A CN 105673806 A CN105673806 A CN 105673806A CN 201610141122 A CN201610141122 A CN 201610141122A CN 105673806 A CN105673806 A CN 105673806A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
- F16H2055/065—Moulded gears, e.g. inserts therefor
Abstract
本发明公开了一种高密度高强度行星齿轮,粉末冶金组成为:C?0.4%~0.7%,Cu?1.3%~1.7%,Ni?3.6%~4.4%,Mo?0.4%~0.6%,Fe余量。本发明的高密度高强度行星齿轮,能有效解决强度低的问题,通过提高产品的密度,高温烧结,最终提高产品强度,可以替代部分钢件齿轮,有效节约原材料,大幅降低制作成本。产品硬度:HRC35?MIN,强度:1200?Kgf?MIN,密度7.45g/cm3以上,具有很好的实用性。
Description
技术领域
本发明涉及粉末冶金技术领域,具体涉及一种高密度高强度行星齿轮。
背景技术
在现有的电动工具中,齿轮箱用的粉末冶金行星齿轮,产品密度一般较小,在7.3g/cm3以下,强度弱,容易损坏,不能替代钢件齿轮使用,显然不能完全满足使用需求。
发明内容
发明目的:针对现有技术中存在的不足,本发明的目的是提供一种高密度高强度行星齿轮,具有高密度、高强度特点,满足在电动工具中齿轮箱的使用需求。
技术方案:为了实现上述发明目的,本发明采用的方案为:
一种高密度高强度行星齿轮,所述行星齿轮的粉末冶金组成为:C0.4%~0.7%,Cu1.3%~1.7%,Ni3.6%~4.4%,Mo0.4%~0.6%,Fe余量。
所述行星齿轮的密度在7.45g/cm3以上。
所述的高密度高强度行星齿轮的制备方法,包括以下步骤:
1)取材料在模具中成形,成形机台60T,中模加热70℃;
2)连续式烧结炉一次烧结890℃,110mm/min,气氛AX;高温烧结炉二次烧结1250℃,10min/舟,气氛RX;
3)在渗碳炉中渗碳处理,850℃渗碳2h,180℃回火1h;
4)真空油浸机中油浸;
5)品管检查;
6)出货。
有益效果:与现有技术相比,本发明的高密度高强度行星齿轮,能有效解决强度低的问题,通过提高产品的密度,高温烧结,最终提高产品强度,可以替代部分钢件齿轮,有效节约原材料,大幅降低制作成本。产品硬度:HRC35MIN,强度:1200KgfMIN,密度7.45g/cm3以上,具有很好的实用性。
附图说明
图1是高密度高强度行星齿轮的结构示意图。
具体实施方式
下面结合具体附图对本发明做进一步说明。
如图1所示,高密度高强度行星齿轮,粉末冶金组成为:C0.4%~0.7%,Cu1.3%~1.7%,Ni3.6%~4.4%,Mo0.4%~0.6%,Fe余量。
该高密度高强度行星齿轮的制备方法,包括以下步骤:
1)取材料在模具中成形,成形机台60T,中模加热70℃;
2)连续式烧结炉一次烧结890℃,110mm/min,气氛AX;高温烧结炉二次烧结1250℃,10min/舟,气氛RX;
3)在渗碳炉中渗碳处理,850℃渗碳2h,180℃回火1h;
4)真空油浸机中油浸;
5)品管检查;
6)出货。
对制备的高密度高强度行星齿轮进行性能检测,具体结果参数如下:
密度在7.45g/cm3以上,硬度:HRC35MIN,强度:1200KgfMIN,精度:5级(JISB1702-1976)。
典型的产品组分和性能如下表所示:
本产品有效解决了强度低的问题,通过提高产品的密度,高温烧结,最终提高产品强度,可以替代部分钢件齿轮,有效节约原材料,大幅降低制作成本。
Claims (3)
1.一种高密度高强度行星齿轮,其特征在于:所述行星齿轮的粉末冶金组成为:C0.4%~0.7%,Cu1.3%~1.7%,Ni3.6%~4.4%,Mo0.4%~0.6%,Fe余量。
2.权利要求1所述的高密度高强度行星齿轮,其特征在于,所述行星齿轮的密度在7.45g/cm3以上。
3.权利要求1所述的高密度高强度行星齿轮的制备方法,其特征在于,包括以下步骤:
1)取材料在模具中成形,成形机台60T,中模加热70℃;
2)连续式烧结炉一次烧结890℃,110mm/min,气氛AX;高温烧结炉二次烧结1250℃,10min/舟,气氛RX;
3)在渗碳炉中渗碳处理,850℃渗碳2h,180℃回火1h;
4)真空油浸机中油浸;
5)品管检查;
6)出货。
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110434344A (zh) * | 2019-08-30 | 2019-11-12 | 广东光铭新材料科技有限公司 | 一种电机齿轮及其制备方法 |
CN111408715A (zh) * | 2020-04-09 | 2020-07-14 | 山东威达粉末冶金有限公司 | 提高铁基含铜粉末冶金烧结件烧结致密度的方法 |
CN112264625A (zh) * | 2020-10-26 | 2021-01-26 | 扬州海昌新材股份有限公司 | 一种高密度齿轮的制备方法 |
CN112647023A (zh) * | 2020-12-14 | 2021-04-13 | 苏州莱特复合材料有限公司 | 一种汽车转向管柱吸能装置用齿条齿块及其生产工艺 |
CN113333755A (zh) * | 2021-05-21 | 2021-09-03 | 扬州保来得科技实业有限公司 | 一种角磨机粉末冶金面齿制备方法 |
CN115823212A (zh) * | 2022-09-14 | 2023-03-21 | 广东极亚精机科技有限公司 | 一种粉末冶金行星齿轮及其制备方法和应用 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110434344A (zh) * | 2019-08-30 | 2019-11-12 | 广东光铭新材料科技有限公司 | 一种电机齿轮及其制备方法 |
CN110434344B (zh) * | 2019-08-30 | 2021-09-03 | 广东光铭新材料科技有限公司 | 一种电机齿轮及其制备方法 |
CN111408715A (zh) * | 2020-04-09 | 2020-07-14 | 山东威达粉末冶金有限公司 | 提高铁基含铜粉末冶金烧结件烧结致密度的方法 |
CN112264625A (zh) * | 2020-10-26 | 2021-01-26 | 扬州海昌新材股份有限公司 | 一种高密度齿轮的制备方法 |
CN112647023A (zh) * | 2020-12-14 | 2021-04-13 | 苏州莱特复合材料有限公司 | 一种汽车转向管柱吸能装置用齿条齿块及其生产工艺 |
CN113333755A (zh) * | 2021-05-21 | 2021-09-03 | 扬州保来得科技实业有限公司 | 一种角磨机粉末冶金面齿制备方法 |
CN115823212A (zh) * | 2022-09-14 | 2023-03-21 | 广东极亚精机科技有限公司 | 一种粉末冶金行星齿轮及其制备方法和应用 |
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Application publication date: 20160615 |