CN115354315B - 一种防腐不锈钢水泵泵壳的加工处理工艺 - Google Patents
一种防腐不锈钢水泵泵壳的加工处理工艺 Download PDFInfo
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- CN115354315B CN115354315B CN202211069503.5A CN202211069503A CN115354315B CN 115354315 B CN115354315 B CN 115354315B CN 202211069503 A CN202211069503 A CN 202211069503A CN 115354315 B CN115354315 B CN 115354315B
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- pump shell
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- NCNKLTFZTZEYLK-SPSNFJOYSA-H [Cr+3].[Cr+3].[O-]C(=O)\C=C\C([O-])=O.[O-]C(=O)\C=C\C([O-])=O.[O-]C(=O)\C=C\C([O-])=O Chemical compound [Cr+3].[Cr+3].[O-]C(=O)\C=C\C([O-])=O.[O-]C(=O)\C=C\C([O-])=O.[O-]C(=O)\C=C\C([O-])=O NCNKLTFZTZEYLK-SPSNFJOYSA-H 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
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- 229910021555 Chromium Chloride Inorganic materials 0.000 description 2
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Classifications
-
- 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
- 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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
-
- 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
- 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
本发明公开了一种防腐不锈钢水泵泵壳的加工处理工艺，本发明属于水泵技术领域，使有机铬分子聚集于羟基化不锈钢表面，对羟基化不锈钢表面吸附水产生排除作用，使不锈钢表面具有疏水性，主要以化学键形式结合，附着力强，其中烯丙基含有不饱和双键，可以促进有机胺的自由基引发参与其交联固化反应与之共聚，用带有不饱和双键的有机铬进行表面处理时，就容易以稳定的化学键形式包覆在不锈钢表面，不饱和双键，在和基体树脂复合时，由于引发剂的作用，容易打开双键，与基体树脂发生接枝、交联等一系列化学反应，使不锈钢和表面的涂层较好地结合在一起。
Description
技术领域
本发明属于水泵技术领域，具体涉及一种防腐不锈钢水泵泵壳的加工处理工艺。
背景技术
硅烷化金属表面处理技术是一种新型的“绿色”环保表面处理技术，具有所用原材料合成简单，无污染，成本低，适用性广等特点。成为了国内外学者研究取代传统磷化处理的研究重点。然而，由于硅烷自身结构的原因，传统硅烷体系中硅醇之间易发生缩合，具有不稳定，安全性差等缺点，并且相比于传统磷化工艺性能略有不足。制备过程中的pH值、乙醇/去离子水比、水解时间、硅烷浓度等工艺参数对硅烷溶液的处理影响较大，单独使用硅烷对金属进行防护的效果不好，涂层较薄，且非抑制剂不能产生自修复功能，因此其防护效果有限，硅烷处理技术对金属基体表面和硅烷槽液清洁性要求相对较高，金属表面油污及槽液杂质离子都将影响硅烷膜层的防护性能，硅烷溶液存放时间相对较短，易发生缩聚而失效，使得工业上的大规模应用受限。大部分硅烷是醇解的，难溶于水中，因此溶液挥发性有机溶剂VOC含量较高，且其使用成本较高。用固体粉末法渗铬制备含铬涂层早有报道。它的基本原理是将工件埋入配制好的渗剂中，在氩气气氛中和一定温度下，保温一定时间，通过反应，使铬渗入工件表层。通常在铁基、镍基等金属上发展含铬涂层，但生长速率慢，附着力低例如CN200510047407.0低温渗铬涂层及其制备方法和应用。美国专利US5945212用磷酸二氢铝制备涂层，但磷酸盐体系在潮湿环境下容易吸水，导致钢板表面发粘，目前并不能完全替代含铬涂层。肖祥武采用不锈钢板表面磁控溅射铬涂层的沉积工艺，并对涂层腐蚀性能进行了研究，但采用直流磁控溅射技术制备条件复杂，原料、设备造价高。高强等采用双层辉光离子渗氧法制备了含铬涂层，含铬涂层出现择优生长的现象，耐磨性和耐蚀性都比基体有明显的提高，但是制备条件复杂，原料、设备造价高.。本领域技术人员亟待开发出一种防腐不锈钢水泵泵壳的加工处理工艺以满足现有的应用市场和性能需求。
发明内容
有鉴于此，本发明提供一种防腐不锈钢水泵泵壳的加工处理工艺。
一种防腐不锈钢水泵泵壳的加工处理工艺，包在常规的机加工后泵壳铸件的抛光、清洗、热熔敷法表面制备玻璃涂层的步骤后，还包括以下步骤：
（1）酸洗处理：将不锈钢水泵泵壳浸没在配置好的食人鱼溶液中，20~30min后取出并用去离子水清洗两遍，吹干，得到羟基化的不锈钢；
（2）将羟基化的不锈钢置在惰性气氛保护下，放入有1~1.7wt%有机铬溶液中，25~30℃下保温2~3小时，然后再缓慢冷却至室温风干至恒重，得到铬交联不锈钢水泵泵壳；
（3）将上述得到的铬交联不锈钢水泵泵壳采用有机胺混合溶液辐射加聚处理30~40min或有机胺水溶液加热加聚处理，然后再取出清洗，烘干至恒重，即得到防腐不锈钢水泵泵壳。
进一步的，所述有机铬为反丁烯二酸硝酸铬或2-二甲基丙烯酸氯化铬的其中一种或多种。
进一步的，所述惰性气氛为氮气。
进一步的，所述有机胺为二甲基二烯丙基氯化铵，所述有机胺混合溶液为含45~50wt%的二甲基二烯丙基氯化铵、7~10wt%双酚A双甲基丙烯酸缩水甘油酯或二乙烯基苯、0.3~0.5wt%偶氮二异丁腈的二甲基甲酰胺的混合溶液，所述有机胺水溶液为含70~75wt％二甲基二烯丙基氯化铵水溶液、5~7wt%N-羟甲基丙烯酰胺，调节 pH 值至4~6，升温至70℃，用氮气除氧，加入0.3~0.5wt%过硫酸铵形成的水溶液。
进一步的，所述辐射处理为喷涂有机胺混合溶液10~20g/m2，60Co-γ辐照场中辐照，剂量率为70~80Gy/min，吸收剂量为90~95kGy。
食人鱼溶液是浓硫酸和30%过氧化氢的混合物(体积比7∶3）有很强的氧化性，可以彻底清除基底材料上的所有有机物，同时可以使大部分基底材料的表面发生羟基化。
进一步的，所述有机胺水溶液加热加聚处理为75~80℃下搅拌浸泡1~2h。
DMDAAC为线性环状结构，所以不水解，溶液稳定性好，由于带有氢正离子，所以有杀菌、电中和能力，无毒，是最早通过FDA认证可以直接用于饮用水处理的有机高分子。
以2-二甲基丙烯酸氯化铬说明作用原理如下：
有机铬发生水解：
水解后与玻璃釉料表面作用。“吸附于玻璃纤维表面与玻璃纤维表面的-Si-OH-发生脱水反应，生成抗水的Si-O-Cr键，有机铬分子之间发生脱水缩合反应形成Cr-O-Cr键，其反应式为：
上述物理与化学作用，使有机铬分子聚集于羟基化不锈钢表面，对羟基化不锈钢表面吸附水产生排除作用，使不锈钢表面具有疏水性，主要以化学键形式结合，附着力强，其中烯丙基含有不饱和双键，可以促进有机胺的自由基引发参与其交联固化反应与之共聚，用带有不饱和双键的有机铬进行表面处理时，就容易以稳定的化学键形式包覆在不锈钢表面，不饱和双键在和有机胺交联聚合时，由于引发剂的作用，容易打开双键，与基体树脂发生接枝、交联等一系列化学反应，使不锈钢和表面的涂层较好地结合在一起。
本发明的有益效果：
本发明利用有机胺参与原位聚合，简单、易行、低成本，不锈钢表面形成厚度均匀、无气孔、与制品表面形状一致的交联共聚物膜，若在反应体系中加入适当的双酚A双甲基丙烯酸缩水甘油酯或二乙烯基苯，可以改善涂层的耐热性，该工艺在室温下进行，不需要额外的驱动力，可以通过控制反应时间来控制保护膜的厚度，涂膜与基体的结合力强，耐蚀性好，对形状复杂的不锈钢泵壳产品，优势显得更为突出。
本发明相比现有技术具有如下优点：
本发明公开的防腐不锈钢水泵泵壳的加工处理工艺，利用有机铬的特殊分子结构进处理，有害磷及其他重金属离子不会应用在其中，表面处理的工艺比较容易控制，并且时间短、流程简单，不用进行加温操作，无沉渣的产生，够循环使用有机铬槽液，Si-O-Cr键、Cr-O-Cr键共价键分子间的结合力很强稳定，从而可以提高产品的防腐蚀能力，使用方便，便于控制，槽液由有机铬由单组分液体配成，不用像磷化液那样，要控制游离酸、总酸、促进剂、锌、镍、锰的含量和温度等众多工艺参数，节约能源，室温操作，能源费用降低，处理时间短，效率高，无有害的重金属，无渣、废水排放少，处理容易，工艺简单，流程短，综合成本低，产品消耗量低，三废处理成本低，有利于进一步的泵壳外表面的涂装，而且表面的聚二甲基二烯丙基氯化铵具有阻垢、灭藻效用，且因为共聚交联作用与不锈钢表面附着牢固，而有机铬起到牢固附着的桥梁作用。
具体实施方式
实施例1
一种防腐不锈钢水泵泵壳的加工处理工艺，还包括以下步骤：（1）酸洗处理：将不锈钢水泵泵壳浸没在配置好的食人鱼溶液中，30min后取出并用去离子水清洗两遍，吹干，得到羟基化的不锈钢；食人鱼溶液是浓硫酸和30%过氧化氢的混合物(体积比7∶3）；（2）将羟基化的不锈钢置在惰性氮气气氛保护下，放入有1.7wt%2-二甲基丙烯酸氯化铬-Volan 702有机铬溶液中，25℃下保温2小时，然后再缓慢冷却至室温风干至恒重，得到铬交联不锈钢水泵泵壳；（3）将上述得到的铬交联不锈钢水泵泵壳采用有机胺-二甲基二烯丙基氯化铵混合溶液辐射加聚处理40min，辐射处理为喷涂有机胺混合溶液10g/m2，60Co-γ辐照场中辐照，剂量率为70Gy/min，吸收剂量为90kGy，有机胺混合溶液为含45wt%的二甲基二烯丙基氯化铵、7wt%双酚A双甲基丙烯酸缩水甘油酯、0.3wt%偶氮二异丁腈的二甲基甲酰胺的混合溶液，然后再取出清洗，烘干至恒重，即得到防腐不锈钢水泵泵壳。
在上述处理步骤之前，还包括以下步骤：第一步、粗车：去除浇口、冒口、浇道等，泵壳铸件采用中频感应电炉熔炼浇注而成，化学成分（质量分数%）C≤0.08、Si≤1.00、S≤0.03、P≤0.045、Mn≤2.00、Cr16.0~18.0、Ni10.0~14.0、Mo2.0~3.0参考标准ASTMA276/A276M牌号316，抗拉强度Rm≥530MPa、屈服强度Rp0.2≥230MPa、断后伸长率≥40%用普通车床J1C616对不锈钢铸造泵壳进行粗加工；第二步、精车：粗加工后的对不锈钢铸造泵壳臫数控车床LA-10L、液压半自动车床C7620、立式钻床Z535进行精细加工，主要是外圆、表面和内孔等的精加工；第三步、淬火回火：淬火炉JH-802指把泵壳铸件加热到温度1050~1080℃保温2h，然后浸入淬火油为THIF-502PAG冷却剂急速冷却，淬火池尺寸为2m×1m×1m，回火炉JH-806将工件淬硬后加热到230℃，保温0.5h，然后冷却到室温；第四步：粗磨、精磨、抛光：泵壳铸件在磨机设备上进行打磨表面、内孔等，打磨工艺为封闭湿式操作，通过添加切削液和水的混合液（比例为1：20）进行湿式抛光；第五步：清洗：打磨完成后需要将铸件进行清洗，清洗在清洗机XQLT50-3中进行，采用封闭式清洗，清洗剂为PK4700水溶液，清洗完成后需要用人工擦干；第六步：采用热熔敷法制备玻璃涂层，是将不锈钢水泵泵壳加热到900℃后在其表面喷撒80目玻璃釉料粉，釉料化学成分SiO255 %、Na2O13.8%、K2O3.7、B2O34.5 %、P2O54.5%、TiO213%、CoO1.5%、BaO6%，保温10min，釉料熔融、铺展、冷却，形成厚0.04mm玻璃涂层，得不锈钢水泵泵壳。
不锈钢水泵泵壳产品：无裂纹、冷隔、穿透性和对应性缺陷，无渗透、无粘砂、氧化皮、裂纹、冷隔、气孔、缩孔、毛刺、碰伤、磨伤和穿透性的缺陷存在，非加工表面不允许存在肉眼可视的气孔、凸点等小缺陷，铸件浇冒口残余位于非加工表面上的应打磨齐平，内部质量经X射线检验的铸件符合ASTME446的规定。
对比例1
该对比例与实施例1相比，进行常规的机加工后泵壳铸件的抛光、清洗、热熔敷法表面制备玻璃涂层的步骤后，未进行酸洗处理、有机铬溶液浸泡等后续步骤，其余步骤与实施例1相同。
实施例2
一种防腐不锈钢水泵泵壳的加工处理工艺，包括以下步骤：
（1）酸洗处理：不锈钢水泵泵壳同实施例1，将不锈钢水泵泵壳浸没在配置好的食人鱼溶液中，20min后取出并用去离子水清洗两遍，吹干，得到羟基化的不锈钢；（2）将羟基化的不锈钢置在惰性氮气气氛保护下，放入有1wt%反丁烯二酸硝酸铬B301有机铬溶液中，30℃下保温2小时，然后再缓慢冷却至室温风干至恒重，得到铬交联不锈钢水泵泵壳；（3）将上述得到的铬交联不锈钢水泵泵壳采用有机胺-二甲基二烯丙基氯化铵水溶液加热加聚处理75℃下搅拌浸泡1h，所述有机胺水溶液为含70wt％二甲基二烯丙基氯化铵水溶液、10wt%3%N-羟甲基丙烯酰胺，调节pH值至4，升温至70℃，用氮气除氧，加入0.3wt%过硫酸铵形成的水溶液，然后再取出清洗，烘干至恒重，即得到防腐不锈钢水泵泵壳。
实施例3
该实施例与实施例1相比，第（3）步，铬交联不锈钢水泵泵壳采用采用有机胺-二甲基二烯丙基氯化铵水溶液加热加聚处理80℃下搅拌浸泡2h，所述有机胺水溶液为含75wt％二甲基二烯丙基氯化铵水溶液、7wt%N-羟甲基丙烯酰胺，调节pH值至6，升温至70℃，用氮气除氧，加入0.5wt%过硫酸铵形成的水溶液，其余步骤与实施例2相同。
实施例4
该实施例与实施例1相比，第（3）步，铬交联不锈钢水泵泵壳采用有机胺-二甲基二烯丙基氯化铵混合溶液辐射加聚处理30min，辐射处理为喷涂有机胺混合溶液10g/m2，60Co-γ辐照场中辐照，剂量率为80Gy/min，吸收剂量为95kGy，有机胺混合溶液为含50wt%的二甲基二烯丙基氯化铵、10wt%二乙烯基苯、0.5wt%偶氮二异丁腈的二甲基甲酰胺的混合溶液，然后再取出清洗，烘干至恒重，即得到防腐不锈钢水泵泵壳，其余步骤与实施例1相同。
在上述处理步骤之前的步骤与实施例1相同。
注：无损检测每批次铸件须按需方要求比例按GB/T5677-2018指定的规程进行X-射线照相检测。力学性能铸件力学性能检验按GB/T228.1-2021金属材料 拉伸试验 第1部分:室温试验方法规定执行。化学成分化学成分用斯派克光谱分析仪分析，取样方法按GB/T20066-2006钢和铁 化学成分测定用试样的取样和制样方法的规定执行。分析方法按GB/T11170的规定执行。铸件表面渗透检测按GB/T9443-2019铸钢铸铁件 渗透检测规定执行。耐盐酸腐蚀性的性能按 GB/T7989-2013的规定检测。耐氢氧化钠腐蚀性的性能按GB/T7991.1-2021的规定检测。耐温差急变性的性能按GB/T7991.3-2021的规定检测。耐机械冲击性按GB/T7991.4-2019的规定检测。耐沸腾水腐蚀性能按HG/T2377-2009的规定检验。
Claims (5)
1.一种防腐不锈钢水泵泵壳的加工处理工艺，在常规的机加工后泵壳铸件的抛光、清洗、热熔敷法表面制备玻璃涂层的步骤后，其特征在于，还包括以下步骤：
（1）酸洗处理：将不锈钢水泵泵壳浸没在配置好的食人鱼溶液中，20~30min后取出并用去离子水清洗两遍，吹干，得到羟基化的不锈钢；
（2）将羟基化的不锈钢置在惰性气氛保护下，放入有1~1.7wt%有机铬溶液中，25~30℃下保温2~3小时，然后再缓慢冷却至室温风干至恒重，得到铬交联不锈钢水泵泵壳；
（3）将上述得到的铬交联不锈钢水泵泵壳采用有机胺混合溶液辐射加聚处理30~40min或有机胺水溶液加热加聚处理，然后再取出清洗，烘干至恒重，即得到防腐不锈钢水泵泵壳，所述有机胺为二甲基二烯丙基氯化铵，所述有机胺混合溶液为含45~50wt%的二甲基二烯丙基氯化铵、7~10wt%双酚A双甲基丙烯酸缩水甘油酯或二乙烯基苯、0.3~0.5wt%偶氮二异丁腈的二甲基甲酰胺的混合溶液，所述有机胺水溶液为含70~75wt％二甲基二烯丙基氯化铵水溶液、5~7wt%N-羟甲基丙烯酰胺，调节pH值至4~6，升温至70℃，用氮气除氧，加入0.3~0.5wt%过硫酸铵形成的水溶液。
2.根据权利要求1所述的一种防腐不锈钢水泵泵壳的加工处理工艺，其特征在于，所述有机铬为反丁烯二酸硝酸铬或2-二甲基丙烯酸氯化铬的其中一种或多种。
3.根据权利要求1所述的一种防腐不锈钢水泵泵壳的加工处理工艺，其特征在于，所述惰性气氛为氮气。
4.根据权利要求1所述的一种防腐不锈钢水泵泵壳的加工处理工艺，其特征在于，所述辐射处理为喷涂有机胺混合溶液10~20g/m2，60Co-γ辐照场中辐照，剂量率为70~80Gy/min，吸收剂量为90~95kGy。
5.根据权利要求1所述的一种防腐不锈钢水泵泵壳的加工处理工艺，其特征在于，所述有机胺水溶液加热加聚处理为75~80℃下搅拌浸泡1~2h。
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