CN105349877A - 一种高压水泵泵盖制备工艺 - Google Patents

一种高压水泵泵盖制备工艺 Download PDF

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CN105349877A
CN105349877A CN201510640699.2A CN201510640699A CN105349877A CN 105349877 A CN105349877 A CN 105349877A CN 201510640699 A CN201510640699 A CN 201510640699A CN 105349877 A CN105349877 A CN 105349877A
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高鹏
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron 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
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    • 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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Abstract

本发明公开了一种高压水泵泵盖制备工艺，包括以下工艺步骤：该泵盖毛坯由以下质量百分数的化学成分组成：2.85%≤C≤3.15%，0.95≤Si≤1.25%，0.26%≤Co≤0.32%，0.03≤P≤0.12%，0.08≤B≤0.12%，0.01≤S≤0.09%，1.2%≤Cr≤1.4%，1.2%≤Mn≤1.4%，0.022%≤Sn≤0.042%，0.6≤Nb≤0.8%，0.32≤Ti≤0.52%，余量为Fe和不可避免的杂质；本发明利于大批量的泵盖的生产，泵盖抗弯强度和密封性能明显改善，产品的力学性能进一步改善，节约了产品用料，提高了产品的水泵寿命。

Description

一种高压水泵泵盖制备工艺
技术领域
本发明涉及水泵制备领域，具体属于一种高压水泵泵盖制备工艺。
背景技术
泵盖是放置在刹车泵或离合器泵的储液罐上端。泵盖上有橡胶密封垫防止刹车液漏出，水分进入，泵盖可能是塑料或金属制成。对于高压水泵的泵盖，由于水泵内压力很大，因此，这样就要求泵盖具有足够抗弯强度、抗剪强度和较好的韧性。
发明内容
本发明的目的是提供一种高压水泵泵盖制备工艺，利于大批量的泵盖的生产，泵盖抗弯强度和密封性能明显改善，产品的力学性能进一步改善，节约了产品用料，提高了产品的水泵寿命。
本发明的技术方案如下：
一种高压水泵泵盖制备工艺，包括以下工艺步骤：
a、浇筑泵盖毛坯，该泵盖毛坯由以下质量百分数的化学成分组成：2.85％≤C≤3.15％，0.95≤Si≤1.25％，0.26％≤Co≤0.32％，0.03≤P≤0.12％，0.08≤B≤0.12％，0.01≤S≤0.09％，1.2％≤Cr≤1.4％，1.2％≤Mn≤1.4％，0.022％≤Sn≤0.042％，0.6≤Nb≤0.8％，0.32≤Ti≤0.52％，余量为Fe和不可避免的杂质；
b、将泵盖毛坯加热到1000℃～1100℃，再在平锻机上利用模具维形型腔对泵盖毛坯进行镦粗制坯，自然冷却后，再将泵轴加热至950-1000℃，并进行拔长-镦粗，之后冲孔、校直、修正尺寸使锻造比为3-5，最后进行热装炉扩氢方式冷却；
c、磷化处理，将冷却后的泵盖进行表面中温磷化处理：在65-70℃的温度下进行，磷酸盐溶液的游离酸度与总酸度的比值为1∶5-6，处理时间为70-80分钟；
d、防锈处理，将磷化处理后的泵轴放入防锈油中浸泡，油中温度为35-40℃，浸泡时间为80-90min，防锈油由以下重量份的原料组成：短油醇酸树脂50-60、丙烯酸乳液14-16、乙醇3-5、花生酸5-7、偏硼酸钡2.5-4.5、酰胺改性氢化蓖麻油1.5-2.5、甲基异丁酮3-5、流平剂2.5-3.5、去离子水20-30。
所述泵盖毛坯由以下质量百分数的化学成分组成：2.95％≤C≤3.05％，1.05≤Si≤1.15％，0.28％≤Co≤0.30％，0.05≤P≤0.1％，0.1≤B≤0.11％，0.04≤S≤0.07％，1.25％≤Cr≤1.35％，1.25％≤Mn≤1.35％，0.026％≤Sn≤0.038％，0.65≤Nb≤0.75％，0.36≤Ti≤0.48％。
本发明利于大批量的泵盖的生产，泵盖抗弯强度和密封性能明显改善，产品的力学性能进一步改善，节约了产品用料，提高了产品的水泵寿命。
本发明的Cr元素是铁素体形成元素，缩小Y区，能大大提高模具钢的强度和塑性，尤其在与Ni结合的钢中尤为显著，加入0.6≤Nb≤0.8％的作用主要是可得极细弥散相，对模具钢的耐热性能改善有,S有助于改善模具钢的切削性能，但是，S在模具钢中倾向于是有害元素，因此，应严格限制S的含量。经过检测，其耐磨性能高，最高硬度是62HRC，比SKD11提高了30％以上，热处理变形SKD11低25％，可切削性能是SKD11的1.8倍。
具体实施方式
一种高压水泵泵盖制备工艺，包括以下工艺步骤：
a、浇筑泵盖毛坯，该泵盖毛坯由以下质量百分数的化学成分组成：2.85％≤C≤3.15％，0.95≤Si≤1.25％，0.26％≤Co≤0.32％，0.03≤P≤0.12％，0.08≤B≤0.12％，0.01≤S≤0.09％，1.2％≤Cr≤1.4％，1.2％≤Mn≤1.4％，0.022％≤Sn≤0.042％，0.6≤Nb≤0.8％，0.32≤Ti≤0.52％，余量为Fe和不可避免的杂质；
b、将泵盖毛坯加热到1000℃～1100℃，再在平锻机上利用模具维形型腔对泵盖毛坯进行镦粗制坯，自然冷却后，再将泵轴加热至950-1000℃，并进行拔长-镦粗，之后冲孔、校直、修正尺寸使锻造比为3-5，最后进行热装炉扩氢方式冷却；
c、磷化处理，将冷却后的泵盖进行表面中温磷化处理：在65-70℃的温度下进行，磷酸盐溶液的游离酸度与总酸度的比值为1∶5-6，处理时间为70-80分钟；
d、防锈处理，将磷化处理后的泵轴放入防锈油中浸泡，油中温度为35-40℃，浸泡时间为80-90min，防锈油由以下重量份的原料组成：短油醇酸树脂50-60、丙烯酸乳液14-16、乙醇3-5、花生酸5-7、偏硼酸钡2.5-4.5、酰胺改性氢化蓖麻油1.5-2.5、甲基异丁酮3-5、流平剂2.5-3.5、去离子水20-30。
所述泵盖毛坯由以下质量百分数的化学成分组成：2.95％≤C≤3.05％，1.05≤Si≤1.15％，0.28％≤Co≤0.30％，0.05≤P≤0.1％，0.1≤B≤0.11％，0.04≤S≤0.07％，1.25％≤Cr≤1.35％，1.25％≤Mn≤1.35％，0.026％≤Sn≤0.038％，0.65≤Nb≤0.75％，0.36≤Ti≤0.48％。
本实施例1生产的轧辊性能检测结果如下表：

Claims (2)

1.一种高压水泵泵盖制备工艺，其特征在于，包括以下工艺步骤：
a、浇筑泵盖毛坯，该泵盖毛坯由以下质量百分数的化学成分组成：2.85%≤C≤3.15%，0.95≤Si≤1.25%，0.26%≤Co≤0.32%，0.03≤P≤0.12%，0.08≤B≤0.12%，0.01≤S≤0.09%，1.2%≤Cr≤1.4%，1.2%≤Mn≤1.4%，0.022%≤Sn≤0.042%，0.6≤Nb≤0.8%，0.32≤Ti≤0.52%，余量为Fe和不可避免的杂质；
b、将泵盖毛坯加热到1000℃～1100℃，再在平锻机上利用模具维形型腔对泵盖毛坯进行镦粗制坯，自然冷却后，再将泵轴加热至950-1000℃，并进行拔长-镦粗，之后冲孔、校直、修正尺寸使锻造比为3-5，最后进行热装炉扩氢方式冷却；
c、磷化处理，将冷却后的泵盖进行表面中温磷化处理：在65-70℃的温度下进行，磷酸盐溶液的游离酸度与总酸度的比值为1∶5-6，处理时间为70-80分钟；
d、防锈处理，将磷化处理后的泵轴放入防锈油中浸泡，油中温度为35-40℃，浸泡时间为80-90min，防锈油由以下重量份的原料组成：短油醇酸树脂50-60、丙烯酸乳液14-16、乙醇3-5、花生酸5-7、偏硼酸钡2.5-4.5、酰胺改性氢化蓖麻油1.5-2.5、甲基异丁酮3-5、流平剂2.5-3.5、去离子水20-30。
2.根据权利要求1所述高压水泵泵盖制备工艺，其特征在于，所述泵盖毛坯由以下质量百分数的化学成分组成：2.95%≤C≤3.05%，1.05≤Si≤1.15%，0.28%≤Co≤0.30%，0.05≤P≤0.1%，0.1≤B≤0.11%，0.04≤S≤0.07%，1.25%≤Cr≤1.35%，1.25%≤Mn≤1.35%，0.026%≤Sn≤0.038%，0.65≤Nb≤0.75%，0.36≤Ti≤0.48%。
CN201510640699.2A 2015-09-29 2015-09-29 一种高压水泵泵盖制备工艺 Pending CN105349877A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105925875A (zh) * 2016-05-18 2016-09-07 安徽合矿机械股份有限公司 一种耐磨球磨机钢球制备方法
CN106756465A (zh) * 2016-12-27 2017-05-31 怀宁县鑫泰钢结构有限公司 一种保温软管用防锈接头

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102989983A (zh) * 2012-08-22 2013-03-27 昌利锻造有限公司 一种汽车发动机曲轴的锻造方法
CN103846378A (zh) * 2014-02-11 2014-06-11 马鞍山市恒毅机械制造有限公司 一种汽车偏心轴的锻造方法
WO2014192117A1 (ja) * 2013-05-30 2014-12-04 新日鐵住金株式会社 軟窒化高周波焼入れ鋼部品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102989983A (zh) * 2012-08-22 2013-03-27 昌利锻造有限公司 一种汽车发动机曲轴的锻造方法
WO2014192117A1 (ja) * 2013-05-30 2014-12-04 新日鐵住金株式会社 軟窒化高周波焼入れ鋼部品
CN103846378A (zh) * 2014-02-11 2014-06-11 马鞍山市恒毅机械制造有限公司 一种汽车偏心轴的锻造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105925875A (zh) * 2016-05-18 2016-09-07 安徽合矿机械股份有限公司 一种耐磨球磨机钢球制备方法
CN106756465A (zh) * 2016-12-27 2017-05-31 怀宁县鑫泰钢结构有限公司 一种保温软管用防锈接头

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