CN1043531A - 合金铸铁气缸套 - Google Patents

合金铸铁气缸套 Download PDF

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Publication number
CN1043531A
CN1043531A CN 88105813 CN88105813A CN1043531A CN 1043531 A CN1043531 A CN 1043531A CN 88105813 CN88105813 CN 88105813 CN 88105813 A CN88105813 A CN 88105813A CN 1043531 A CN1043531 A CN 1043531A
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CN
China
Prior art keywords
cast iron
boron
tungsten
jacke
alloy cast
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN 88105813
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English (en)
Inventor
侯运德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENGYANG CITY POWER FITTINGS FACTORY
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HENGYANG CITY POWER FITTINGS FACTORY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HENGYANG CITY POWER FITTINGS FACTORY filed Critical HENGYANG CITY POWER FITTINGS FACTORY
Priority to CN 88105813 priority Critical patent/CN1043531A/zh
Publication of CN1043531A publication Critical patent/CN1043531A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/04—Phosphor

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

本发明涉及一种内燃机合金铸铁气缸套，化学成分为：3.0～3.4％硅2.0～2.6％、锰0.8～1.3％，磷0.15～0.5％，硫低于0.1％，硼0.02～0.08，钨0.01～0.06％，余为铁。由于钨的加入，大幅度提高了气缸套的耐磨性，经国家级产品质量监检中心测试，其相对耐磨性比硼铸铁提高60％以上。

Description

本发明涉及一种内燃机合金铸铁气缸套。
已知的合金铸铁气缸套，如专利申请号为86107845的合金铸铁气缸套，含碳3.1～3.8%，硅2.1～2.6%，锰0.7～1.3%，磷0.15～0.50%，硫低于0.1%，硼0.02～0.08%，铝0.3～1.0%，余为铁。这种合金铸铁气缸套，经离子热处理后，其耐磨性、减磨性比高磷铸铁气缸套好，但其不足之处要经离子热处理，增加成本和生产周期，其次是形成硬化相的合金元素只有硼，而硼的含量不能过高，否则易形成呈枝晶分布的复合物。
本发明的目的在于提供一种成本低，耐磨性比硼铸铁气缸套更好的合金铸铁气缸套。
本发明的目的是这样实现的：气缸套用合金铸铁制造，合金铸铁含有铁、碳、硅、锰、磷、硫、硼、钨等元素，含量（重量百分比）为：碳3.0～3.4，硅2.0～2.6，锰0.8～1.3%，磷0.15～0.5%，硫低于0.1%，硼0.02～0.08%，钨0.01～0.06%，余为铁。
本发明-合金铸铁气缸套，铸铁含钨、硼量（重量百分比）可以为：含钨0.02～0.04%，含硼0.03～0.06%。
本发明-合金铸铁气缸套-钨硼铸铁气缸套的优点在于耐磨性好，不需热处理，经国家拖拉机产品质量监督检测中心快速考核磨损试验，结果为：钨硼铸铁气缸套径向磨损值为0.056～0.064毫米，而硼铸铁为0.0926～0.1192毫米，相对耐磨性提高了60%以上。因为钨元素的加入，在铸铁的金相组织中，增加了新的硬质相-钨化物及含钨复合物，其显微硬度很高，达到HV1160～1300，钨还能改善硬质相的分布，钨能够稳定和细化珠光体，提高了基体质量，钨还能使组织中不易形成过冷石墨，钨在铸铁中最突出的特点是热稳定性好，这对于长期处在高温、高压状态下工作的气缸套来说，更显得可贵。因此，钨硼铸铁气缸套耐磨性好。中国钨的资源丰富，比用铬、钼、铜作合金铸铁成本低。
按本发明，合金铸铁的熔炼可以在电炉、冲天炉或冲天炉-电炉双联熔炼，合金元素钨用钨铁的形式与金属炉料一起加入炉中，合金元素硼可以用硼铁或硼矿石的形式，炉后或炉前加入均可。
实施例：钨硼合金铸铁化学成分为：碳3.2%，硅2.2%，锰1.1%，磷0.3%，硫低于0.1%，硼0.04%，钨0.04%，余为铁。

Claims (3)

1、一种内燃机气缸套，是用合金铸铁制造的，合金铸铁含有铁、碳硅、锰、磷、硫、硼等元素，含量(重量百分比)为碳3.1～3.4，硅2.0～2.6%，锰0.8～1.3%，磷0.15～0.5%，硫低于0.10%，硼0.02～0.08%，余为铁，本发明的特征在于还含有钨，含量为0.01～0.06%。
2、根据权利要求1的合金铸铁气缸套，其特征在于含钨量为0.02～0.04%。
3、根据权利要求1或2的合金铸铁气缸套，其特征在于含硼量为0.03～0.06%。
CN 88105813 1988-12-12 1988-12-12 合金铸铁气缸套 Pending CN1043531A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88105813 CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88105813 CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Publications (1)

Publication Number Publication Date
CN1043531A true CN1043531A (zh) 1990-07-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88105813 Pending CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Country Status (1)

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CN (1) CN1043531A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8183242B2 (en) 2004-12-31 2012-05-22 Piaoyang Sun Aminopyrimidine compounds and their salts, process for preparation and pharmaceutical use thereof
WO2014082578A1 (zh) 2012-11-28 2014-06-05 南京圣和药业有限公司 杂芳基炔烃化合物及其应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8183242B2 (en) 2004-12-31 2012-05-22 Piaoyang Sun Aminopyrimidine compounds and their salts, process for preparation and pharmaceutical use thereof
WO2014082578A1 (zh) 2012-11-28 2014-06-05 南京圣和药业有限公司 杂芳基炔烃化合物及其应用

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