CN102728513A - Technology of antirust and leakproof surface treatment of valve member used for railway vehicle - Google Patents
Technology of antirust and leakproof surface treatment of valve member used for railway vehicle Download PDFInfo
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- CN102728513A CN102728513A CN2012102132379A CN201210213237A CN102728513A CN 102728513 A CN102728513 A CN 102728513A CN 2012102132379 A CN2012102132379 A CN 2012102132379A CN 201210213237 A CN201210213237 A CN 201210213237A CN 102728513 A CN102728513 A CN 102728513A
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Abstract
The invention discloses a technology of an antirust and leakproof surface treatment of a valve member used for a railway vehicle. The technology comprises the steps of pre-preparation, infiltration and post-cleaning. The pre-preparation step is characterized by cleaning the valve member and removing the impurities on the surface, and drying for standby; the infiltration step is characterized by filling the pre-prepared valve member in a reaction vessel possessing an infiltration liquid under the normal pressure, completely immersing in the infiltration liquid, vacuum-pumping and keeping the vacuum degree of 0.08-0.15Mpa for lasting for 10-25 minutes; the post-cleaning step is characterized by drying the infiltrated valve member, cleaning by water, and drying and drying by wind, wherein the drying time is between 3-10 minutes and the drying temperature is between 60-100 DEG C. A thermosetting metacrylic acid ester mixture is employed as an infiltration material, the infiltration sealing quality is good, the unqualified rate caused by poor sealing rust resistance performance can be obviously reduced, the infiltration condition is better, no heating process is required, the energy consumption is reduced; the vacuum-pumping method, especially the infiltration condition satisfies the technology requirements, and is especially suitable for the selected infiltration material. The infiltration technology operation is simplified, the efficiency is substantially enhanced, the infiltration material enables no toxicity, and the technology enables safety and environmental protection.
Description
Technical field
The invention belongs to field of metal surface treatment technology, especially belong to through infiltration process metal surfaces technical field, particularly rolling stock is with the antirust leakproof process of surface treatment of valve member.
Background technology
Existing railway freight-car 120 valves and various air damping valve body seal antirust employing waxdip technology; The waxdip process is with infiltration processing, labor cleaning's surface wax, machinery equipment clean surface and oven dry in the liquid wax of workpiece input after high temperature melt, benefit cleaning; The production technology design of oil paint coating is carried out on the surface again, and this technology is continued to use decades in the production of railway freight-car air damping valve body.This explained hereafter operation point is many, and the operation operation disperses, and needs to have enough to meet the need transporting equipment between arrangement step, and the production turnaround time is long, and the many costs of labor of operational personnel are high, and efficient is low.Simultaneously, because of removing surface, remove wax and be difficult for thoroughly, poor adhesive force behind the oil paint coating, be prone to come off.In addition, it is general to adopt waxdip to handle the sealing effect of defective such as valve body moulding surface pore, and mass effect can not meet the requirements, because of defectives such as pore are sealed bad cause to sew percent defective higher.Finished product is because of the influence of various factors, and overall appearance is of low quality, and commercialized degree remains further to be improved.
Summary of the invention
The present invention discloses a kind of rolling stock with the antirust leakproof process of surface treatment of valve member according to the deficiency of prior art.The problem that the present invention will solve provides a kind of continuous processing technique at normal temperatures, carries out more convenient economical and efficient ground rolling stock is carried out antirust leakproof surface treatment with valve member.
The present invention provides following technical scheme to realize:
Rolling stock is characterized in that with the antirust leakproof process of surface treatment of valve member: comprise preparatory preparation, infiltration and back cleanup step;
(1) said preparatory preparation is that the valve member cleaning and removing is removed surface impurity, dried for standby;
(2) said infiltration is that preparatory ready valve member is incorporated with under normal pressure in the agitated reactor of infiltration liquid, immerses infiltration liquid fully, vacuumizes and keeps vacuum 0.08-0.15Mpa to continue 10-25min;
(3) said back cleanup step comprise with infiltration back valve member dry, water cleans, 60-100 ℃ of drying and baking step, wherein drying time: 3-10min, bake out temperatures again;
Said infiltration liquid is the thermosetting methacrylate mixtures, contains the methacrylate mixtures weight percent content greater than 85%, and other compositions are that propane diols butyl ether and/or ethyl acetate are an amount of.
Said infiltration liquid density is 0.9-1.2g/cm
3, viscosity 5-7mPa.s, 110-130 ℃ of flash-points, above-mentioned density and viscosity are 25 ℃ measured values.
Above-mentioned thermosetting methacrylate mixtures can obtain through the various esters mixing of methacrylic acid; The various esters of methacrylic acid have commercially available; Mix back methyl acrylic ester thing weight percent content greater than 85%; Other compositions are one or both mixtures of propane diols butyl ether, ethyl acetate equal solvent, infiltration liquid density (25 ℃) 0.9-1.2g/cm
3Viscosity (3# rotor; 25 ℃) 5-7mPa.s; 110-130 ℃ of flash-points.Adopt infiltration liquid infiltration of the present invention back valve member to meet processing requirements and the waxdip of being superior to handicraft product is arranged.
It is impregnating material that above-mentioned technology is selected the thermosetting methacrylate mixtures for use, utilizes and selects good wellability of impregnating material and normal temperature liquid form for use, without heat; Impregnating material is inserted in the production equipment container, and the valve member after will preparing in advance to clear up by vessel volume is then put into equipment container, vacuumizes the infiltration back and takes out; Utilizing suspender to put into production line back cleaning equipment handles; After continuous production, various foundry goods valve body satisfies the requirement of direct application, simultaneously; Because of new material infiltration closed performance is good, significantly reduced because of sealing bad percent defective of sewing.
Helpfulness of the present invention is:
1, because of adopting new impregnating material, cancel former operation manual work and clear up repeatedly, reduced operator's quantity, reduced production cost.
2, adopt continuous production line to carry out, reduce inter process turnover transporting equipment, alleviated manpower labour intensity and cost of labor.Multiple operation is combined into a series-operation, has reduced operation quantity and operation turnaround time.The production process cycle shortens, and production efficiency obviously improves.
3, reduce the working in dispersion point and be beneficial to management and quality control.
4, adopting the thermosetting methacrylate mixtures is impregnating material, and the infiltration sealing quality is good, has obviously reduced because of sealing the antirust bad disqualification rate that causes, and the infiltration condition is more excellent, need not heating, has reduced energy consumption; Vacuum pumping method particularly vacuum infiltration condition has satisfied technological requirement, is particularly suitable for the impregnating material that the present invention selects.The Infiltration Technics simplified control, efficient improves greatly, and impregnating material is nontoxic, safety and environmental protection.
The specific embodiment
Through embodiment the present invention is further described below; Present embodiment only is used for the present invention is further explained; But can not be interpreted as the restriction to protection domain of the present invention, those skilled in the art can make the scope that some nonessential improvement and adjustment belong to the present invention's protection according to the content of the invention described above.
Technology of the present invention comprises preparatory preparation, infiltration, cleaning, drying, baking step;
(1) preparing in advance is that the valve member cleaning and removing is removed surface impurity, dried for standby;
(2) infiltration is that preparatory ready valve member is incorporated with under normal pressure in the agitated reactor of infiltration liquid, immerses infiltration liquid fully, vacuumizes and keeps vacuum 0.08-0.15Mpa to continue 10-25min;
(3) will utilize suspender to put into another equipment through the workpiece after infiltration is handled and dry processing;
(4) will infiltrate after the unnecessary infiltration liquid in part surface gets rid of, and utilize suspender to put into service sink immediately and clean, and clean the back and in same equipment, accomplish spin-drying operation, the unnecessary water in infiltration part surface will be got rid of;
(5) utilize product spare after suspender will dry to put into another equipment subsequently and accomplish drying operation, take out the oven dry back, treats can carry out after the nature cooling work such as surperficial oil paint coating.Drying time: 3-10min wherein, 60-100 ℃ of bake out temperatures.
About 30-45 minutes of all round process.
Infiltration liquid is the thermosetting methacrylate mixtures; Contain the methacrylate mixtures weight percent content greater than 85%; Other compositions are one or both mixtures of propane diols butyl ether, ethyl acetate equal solvent, and adjustment infiltration liquid density is 0.9-1.2g/cm
3, viscosity 5-7mPa.s, 110-130 ℃ of flash-points, above-mentioned density and viscosity are 25 ℃ measured values.
Above-mentioned production process can be carried out on a continuous and compact production line, with respect to existing various production equipment and production technology, has reduced number of devices, has reduced the staff, has reduced production cost.Reduce the product carrying number of turnover because production line is produced continuously simultaneously, alleviated manpower labour intensity.Adopt this technology, the centre need not had enough to meet the need, and auxiliary work post is few.This explained hereafter equipment plane figure reduces the operation goods in process inventory.This technological operation control is convenient, and controllability is strong, has reduced artificial factor, produces by the technological requirement operating equipment, is beneficial to control and improves the quality.Different nontoxic with infiltration new material wax, safety and environmental protection need not heat use.
Claims (2)
1. rolling stock is characterized in that with the antirust leakproof process of surface treatment of valve member: comprise preparatory preparation, infiltration and back cleanup step;
(1) said preparatory preparation is that the valve member cleaning and removing is removed surface impurity, dried for standby;
(2) said infiltration is that preparatory ready valve member is incorporated with under normal pressure in the agitated reactor of infiltration liquid, immerses infiltration liquid fully, vacuumizes and keeps vacuum 0.08-0.15Mpa to continue 10-25min;
(3) said back cleanup step comprise with infiltration back valve member dry, water cleans, 60-100 ℃ of drying and baking step, wherein drying time: 3-10min, bake out temperatures again;
Said infiltration liquid is the thermosetting methacrylate mixtures, contains the methacrylate mixtures weight percent content greater than 85%, and other compositions are that propane diols butyl ether and/or ethyl acetate are an amount of.
2. rolling stock according to claim 1 is characterized in that with the antirust leakproof process of surface treatment of valve member: said infiltration liquid density is 0.9-1.2g/cm
3, viscosity 5-7mPa.s, 110-130 ℃ of flash-points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132379A CN102728513A (en) | 2012-06-26 | 2012-06-26 | Technology of antirust and leakproof surface treatment of valve member used for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102132379A CN102728513A (en) | 2012-06-26 | 2012-06-26 | Technology of antirust and leakproof surface treatment of valve member used for railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102728513A true CN102728513A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102132379A Pending CN102728513A (en) | 2012-06-26 | 2012-06-26 | Technology of antirust and leakproof surface treatment of valve member used for railway vehicle |
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| CN (1) | CN102728513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897097A (en) * | 2014-03-12 | 2014-07-02 | 南京艾布纳密封技术有限公司 | Recyclable acrylic ester impregnant for sealed reinforcement |
| CN114769566A (en) * | 2022-06-02 | 2022-07-22 | 眉山中车制动科技股份有限公司 | Wax boiling post-treatment equipment and process for railway vehicle accessories |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200488U (en) * | 1985-04-01 | 1986-05-28 | 湖南省机械研究所 | Complete sets of equipment for infiltration process |
-
2012
- 2012-06-26 CN CN2012102132379A patent/CN102728513A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200488U (en) * | 1985-04-01 | 1986-05-28 | 湖南省机械研究所 | Complete sets of equipment for infiltration process |
Non-Patent Citations (3)
| Title |
|---|
| 于侠: "浸渗工艺在铁路货车制造中的应用", 《装备制造》 * |
| 张鹏等: "《丙烯酸树脂防腐蚀涂料及应用》", 30 September 2003, 化学工业出版社 * |
| 贾培英: "铸件浸渗系统的研究与设计", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897097A (en) * | 2014-03-12 | 2014-07-02 | 南京艾布纳密封技术有限公司 | Recyclable acrylic ester impregnant for sealed reinforcement |
| CN114769566A (en) * | 2022-06-02 | 2022-07-22 | 眉山中车制动科技股份有限公司 | Wax boiling post-treatment equipment and process for railway vehicle accessories |
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Application publication date: 20121017 |