CN105543664A - 一种滚子轴承用耐磨滚子制备方法 - Google Patents

一种滚子轴承用耐磨滚子制备方法 Download PDF

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CN105543664A
CN105543664A CN201510995047.0A CN201510995047A CN105543664A CN 105543664 A CN105543664 A CN 105543664A CN 201510995047 A CN201510995047 A CN 201510995047A CN 105543664 A CN105543664 A CN 105543664A
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roller
preparation
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salt bath
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陈恒义
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Hefei Zhonglan New Material Technology Co Ltd
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    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C23C8/08—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 only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces

Abstract

本发明公开了一种滚子轴承用耐磨滚子制备方法，包括有如下步骤：制备和铸造具有如下重量百分比的钢锭：0.72%≤C≤0.84%，0.55≤Si≤0.85%，0.56%≤Mn≤0.75%，0.006≤P≤0.012%，0.004≤S≤0.015%，1.45%≤Cr≤1.85%，0.032%≤Co≤0.042%，0.45≤Ni≤0.75%，0.3≤Ti≤0.5%，0.15≤W≤0.25%，余量为Fe；本发明制坯方便，效率高，锻造成型容易，锻造出的滚子强度好，使用寿命长，安全可靠，适用于各种型号的滚子的大批量生产。

Description

一种滚子轴承用耐磨滚子制备方法
技术领域
本发明涉及滚子制造领域，具体属于一种滚子轴承用耐磨滚子制备方法。
背景技术
滚子轴承是用短圆柱、圆锥或腰鼓形滚子作滚动体的滚动轴承。主要有向心短圆柱滚子、双列向心球面滚子、圆锥滚子和推力滚子等结构型式。大批量的生产该产品，用操作人员劳动强度大，产品质量全凭人为控制、劳动密集型工艺，是不合适的用此工艺，生产效率很低。
发明内容
本发明的目的是提供一种滚子轴承用耐磨滚子制备方法，制坯方便，效率高，锻造成型容易，锻造出的滚子强度好，使用寿命长，安全可靠，适用于各种型号的滚子的大批量生产。
本发明的技术方案如下：
一种滚子轴承用耐磨滚子制备方法，包括有如下步骤：
a）制备和铸造具有如下重量百分比的钢锭：0.72%≤C≤0.84%，0.55≤Si≤0.85%，0.56%≤Mn≤0.75%，0.006≤P≤0.012%，0.004≤S≤0.015%，1.45%≤Cr≤1.85%，0.032%≤Co≤0.042%，0.45≤Ni≤0.75%，0.3≤Ti≤0.5%，0.15≤W≤0.25%，余量为Fe；
b）锻造，将钢锭坯料加热至1020-1150℃，将锻造模具的上模和下模分别预热至490-520℃，然后将加热后的钢锭坯料放置于下模中，再将所述上模装在所述下模上，且坯料的上部置于所述上模腔内，锻压次数为5-7次，制成滚子锻压件；
c）滚子锻压件分别进行真空渗氮处理、盐浴淬火池处理，真空渗氮处理是先将真空炉排气至真空度0.12-0.32Pa后，将铸态毛坯升温至505～525℃，同时以1.2-1.4L/min送入氨气，炉压控制在4.3-5.6Pa，然后进行盐浴淬火，盐浴处理温度为102-115℃，盐浴处理保温时间为1.2-1.5h，熔盐各成分重量比为：纯碱13-15份、氯化钠10-12份、碳酸钙4-6份、碳酸镁7-8份、硫酸钠4.5-6.5份。
所述制备和铸造具有如下重量百分比的钢锭：0.76%≤C≤0.8%，0.6≤Si≤0.8%，0.6%≤Mn≤0.7%，0.01≤P≤0.011%，0.008≤S≤0.01%，1.55%≤Cr≤1.75%，0.036%≤Co≤0.038%，0.5≤Ni≤0.7%，0.35≤Ti≤0.45%，0.18≤W≤0.22%，余量为Fe。
本发明对锻造变形量和锻造尺寸没有限制，锻件的成品率可以达到95以上，锻件关键质量指标符合国标要求，用该锻件制造的工模具使用寿命与传统锻件制造的工模具相比至少提高一倍。制坯方便，效率高，锻造成型容易，锻造出的滚子强度好，使用寿命长，安全可靠，适用于各种型号的滚子的大批量生产。
本发明滚子锻件的力学性能：抗拉强度Rm≥650Mpa，屈服强度Re≥550Mpa，伸长率A≥12.4%，力学性能Z≥24.5%。
具体实施方式
一种滚子轴承用耐磨滚子制备方法，包括有如下步骤：
a）制备和铸造具有如下重量百分比的钢锭：0.76%≤C≤0.8%，0.6≤Si≤0.8%，0.6%≤Mn≤0.7%，0.01≤P≤0.011%，0.008≤S≤0.01%，1.55%≤Cr≤1.75%，0.036%≤Co≤0.038%，0.5≤Ni≤0.7%，0.35≤Ti≤0.45%，0.18≤W≤0.22%，余量为Fe；
b）锻造，将钢锭坯料加热至1020-1150℃，将锻造模具的上模和下模分别预热至490-520℃，然后将加热后的钢锭坯料放置于下模中，再将所述上模装在所述下模上，且坯料的上部置于所述上模腔内，锻压次数为5-7次，制成滚子锻压件；
c）滚子锻压件分别进行真空渗氮处理、盐浴淬火池处理，真空渗氮处理是先将真空炉排气至真空度0.12-0.32Pa后，将铸态毛坯升温至505～525℃，同时以1.2-1.4L/min送入氨气，炉压控制在4.3-5.6Pa，然后进行盐浴淬火，盐浴处理温度为102-115℃，盐浴处理保温时间为1.2-1.5h，熔盐各成分重量比为：纯碱13-15份、氯化钠10-12份、碳酸钙4-6份、碳酸镁7-8份、硫酸钠4.5-6.5份。

Claims (2)

1.一种滚子轴承用耐磨滚子制备方法，其特征在于，包括有如下步骤：
a）制备和铸造具有如下重量百分比的钢锭：0.72%≤C≤0.84%，0.55≤Si≤0.85%，0.56%≤Mn≤0.75%，0.006≤P≤0.012%，0.004≤S≤0.015%，1.45%≤Cr≤1.85%，0.032%≤Co≤0.042%，0.45≤Ni≤0.75%，0.3≤Ti≤0.5%，0.15≤W≤0.25%，余量为Fe；
b）锻造，将钢锭坯料加热至1020-1150℃，将锻造模具的上模和下模分别预热至490-520℃，然后将加热后的钢锭坯料放置于下模中，再将所述上模装在所述下模上，且坯料的上部置于所述上模腔内，锻压次数为5-7次，制成滚子锻压件；
c）滚子锻压件分别进行真空渗氮处理、盐浴淬火池处理，真空渗氮处理是先将真空炉排气至真空度0.12-0.32Pa后，将铸态毛坯升温至505～525℃，同时以1.2-1.4L/min送入氨气，炉压控制在4.3-5.6Pa，然后进行盐浴淬火，盐浴处理温度为102-115℃，盐浴处理保温时间为1.2-1.5h，熔盐各成分重量比为：纯碱13-15份、氯化钠10-12份、碳酸钙4-6份、碳酸镁7-8份、硫酸钠4.5-6.5份。
2.根据权利要求1所述滚子轴承用耐磨滚子制备方法，其特征在于，所述制备和铸造具有如下重量百分比的钢锭：0.76%≤C≤0.8%，0.6≤Si≤0.8%，0.6%≤Mn≤0.7%，0.01≤P≤0.011%，0.008≤S≤0.01%，1.55%≤Cr≤1.75%，0.036%≤Co≤0.038%，0.5≤Ni≤0.7%，0.35≤Ti≤0.45%，0.18≤W≤0.22%，余量为Fe。
CN201510995047.0A 2015-12-28 2015-12-28 一种滚子轴承用耐磨滚子制备方法 Pending CN105543664A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106319301A (zh) * 2016-09-23 2017-01-11 安徽丰磊制冷工程有限公司 一种空气过滤器用风扇叶片制备方法
CN106801168A (zh) * 2016-12-20 2017-06-06 铜陵市经纬流体科技有限公司 一种轻质球阀用铝合金启闭件
CN107245648A (zh) * 2017-06-02 2017-10-13 江阴国润机械有限公司 高温耐磨炉排片及其浇注模具和浇注工艺

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* Cited by examiner, † Cited by third party
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JPH1151065A (ja) * 1997-07-31 1999-02-23 Nippon Seiko Kk 転がり軸受
US6332714B1 (en) * 1998-06-29 2001-12-25 Nsk Ltd. Induction-hardened rolling bearing device
CN1955446A (zh) * 2006-09-06 2007-05-02 上海鲁依思动力机械工业有限公司 增压器油膜轴承的加工方法
CN101041884A (zh) * 2006-03-20 2007-09-26 百乐特殊钢公司 用于滚动轴承的合金
CN104289858A (zh) * 2013-07-16 2015-01-21 无锡华冶钢铁有限公司 一种42CrMoE合金结构钢材料及销轴加工方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1151065A (ja) * 1997-07-31 1999-02-23 Nippon Seiko Kk 転がり軸受
US6332714B1 (en) * 1998-06-29 2001-12-25 Nsk Ltd. Induction-hardened rolling bearing device
CN101041884A (zh) * 2006-03-20 2007-09-26 百乐特殊钢公司 用于滚动轴承的合金
CN1955446A (zh) * 2006-09-06 2007-05-02 上海鲁依思动力机械工业有限公司 增压器油膜轴承的加工方法
CN104289858A (zh) * 2013-07-16 2015-01-21 无锡华冶钢铁有限公司 一种42CrMoE合金结构钢材料及销轴加工方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106319301A (zh) * 2016-09-23 2017-01-11 安徽丰磊制冷工程有限公司 一种空气过滤器用风扇叶片制备方法
CN106801168A (zh) * 2016-12-20 2017-06-06 铜陵市经纬流体科技有限公司 一种轻质球阀用铝合金启闭件
CN107245648A (zh) * 2017-06-02 2017-10-13 江阴国润机械有限公司 高温耐磨炉排片及其浇注模具和浇注工艺

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Application publication date: 20160504