CN102994906B - 一种球阀阀体的方法 - Google Patents
一种球阀阀体的方法 Download PDFInfo
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- CN102994906B CN102994906B CN201210372826.1A CN201210372826A CN102994906B CN 102994906 B CN102994906 B CN 102994906B CN 201210372826 A CN201210372826 A CN 201210372826A CN 102994906 B CN102994906 B CN 102994906B
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- 238000003754 machining Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000000470 constituent Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 9
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- 238000009413 insulation Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
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- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound 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Abstract
本发明公开了一种球阀阀体的制造方法，包括有以下步骤：a、配混料：浇注成型阀体毛坯，各组分化学成分重量百分比为：C0.18-0.40%，Mn0.5-2.0%，Si0.6-1.5%，V0.09-0.15%，Ti？0.11-0.22%，Cr0.4-1.4%，Ni0.4-1.5%，Mo痕量～0.30%，W0.4-0.8%，Nb0.02-0.08%，Al痕量～0.20%，Mg痕量～0.50%，P≤0.030%、S≤0.030%,余量为Fe；b、机加工：将阀体毛坯放入冲床中进行切边，并去毛刺。本发明可以提高材料的耐磨性。
Description
技术领域
[0001] 本发明涉及一种球阀部件的制备方法，具体属于一种球阀阀体的方法。
背景技术
[0002] 球阀适用在-50〜150°C的各种浓度的王水、硫酸、盐酸、氢氟酸和各种有机酸、强酸、强氧化剂，还适用于各种浓度的强碱有机溶剂以及其它腐蚀性气体，液体介质的管路上使用。
[0003]目前，制备球阀行业，国内的球阀阀体均采用普通高速钢素材，或不锈钢素材通过机加工蝶阀阀杆。与粉末冶金制球阀阀体相比，普通高速钢素材或不锈钢素材机加工制造的阀片加工速度较慢，材料利用率不高，而粉末冶金工艺制造截止阀，不仅材料利用率高，且适于大批量生产，在装配使用前需要对粉末冶金球阀阀体进行少量精磨加工。此种方法存在着产量低、质量合格率低等问题。
发明内容
[0004] 本发明所要解决的技术问题是针对球阀阀体工艺技术现状，而提供的一种生产效率高、制造成本较低的一种球阀阀体的方法。
[0005] 本发明采用的技术方案如下:
[0006] —种球阀阀体的方法，包括有以下步骤:
[0007] a、配混料:浇注成型阀体毛坯，各组分化学成分重量百分比为:C 0.18-0.40%，Μη 0.5-2.0%，Si 0.6-1.5%，V 0.09-0.15%，Ti 0.11-0.22%，Cr 0.4-1.4%，Ni 0.4-1.5%，Mo 痕量〜0.30%，ff 0.4-0.8%，Nb 0.02-0.08%，A1 痕量〜0.20%，Mg 痕量〜0.50%，Ρ ^ 0.030%、S ^ 0.030%,余量为 Fe ；
[0008] b、机加工:将阀体毛坯放入冲床中进行切边，并去毛刺；
[0009] c、淬火处理:将阀体零件送入热处理炉中加热到850-890°C，并保温3.5-4.5小时；然后，用淬火液冷却；
[0010] d、回火处理:将淬火后的零件送入回火炉中加热到300-400°C，保温50-70min;
[0011] e、深冷处理:将回火后零件装入容器，加入液氮进行深冷处理，时间为11-12小时。
[0012] 在步骤c中，将阀体零件送入热处理炉中加热到870°C，并保温4小时；然后，用淬火液冷却。
[0013]与现有技术相比，本发明的优点在于:
[0014] 本发明组成原料配方合理，工艺简单，合金具有改善的高温硬度和高温压缩强度，适合应用于高温场合制成的阀门，阀门的使用寿命长，合格率高，大大提高了产品的质量，适合广泛推广。
[0015] 本发明的球阀阀体抗拉强度ob (MPa):彡1080，屈服强度os (MPa):彡930，伸长率δ5 (%):^12，断面收缩率φ (%):多45，冲击功Akv (J):^63，冲击韧性值 a kv (J/cm2):彡 78 ⑶。
具体实施方式
[0016] 一种球阀阀体的方法，包括有以下步骤:
[0017] a、配混料:浇注成型阀体毛坯，各组分化学成分重量百分比为:C 0.18-0.40%，Μη 0.5-2.0%，Si 0.6-1.5%，V 0.09-0.15%，Ti 0.11-0.22%，Cr 0.4-1.4%，Ni 0.4-1.5%，Mo 痕量〜0.30%，ff 0.4-0.8%，Nb 0.02-0.08%，A1 痕量〜0.20%，Mg 痕量〜0.50%，Ρ ^ 0.030%、S ^ 0.030%,余量为 Fe ；
[0018] b、机加工:将阀体毛坯放入冲床中进行切边，并去毛刺；
[0019] c、淬火处理:将阀体零件送入热处理炉中加热到870°C，并保温4小时；然后，用淬火液冷却；
[0020] d、回火处理:将淬火后的零件送入回火炉中加热到300-400°C，保温50-70min;
[0021] e、深冷处理:将回火后零件装入容器，加入液氮进行深冷处理，时间为11-12小时。
Claims (2)
1.一种球阀阀体的制造方法，其特征在于包括有以下步骤:a、配混料:浇注成型阀体毛坯，各组分化学成分重量百分比为:C 0.18-0.40%，Μη0.5-2.0%，Si 0.6-1.5%，V 0.09-0.15%，Ti 0.11-0.22%，Cr 0.4-1.4%，Ni 0.4-1.5%，Mo 痕量〜0.30%，ff 0.4-0.8%，Nb 0.02-0.08%，A1 痕量〜0.20%，Mg 痕量〜0.50%，Ρ ^ 0.030%、S ^ 0.030%,余量为 Fe ； b、机加工:将阀体毛坯放入冲床中进行切边，并去毛刺； c、淬火处理:将阀体零件送入热处理炉中加热到850-890°C，并保温3.5-4.5小时；然后，用淬火液冷却； d、回火处理:将淬火后的零件送入回火炉中加热到300-400°C，保温50-70min; e、深冷处理:将回火后零件装入容器，加入液氮进行深冷处理，时间为11-12小时。
2.根据权利要求1所述的球阀阀体的制造方法，其特征在于:在步骤c中，将阀体零件送入热处理炉中加热到870°C，并保温4小时；然后，用淬火液冷却。
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