CN105043679A - Method for carrying out airtightness detection and antitrust processing synchronously on fuel tank production line - Google Patents
Method for carrying out airtightness detection and antitrust processing synchronously on fuel tank production line Download PDFInfo
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- CN105043679A CN105043679A CN201510295126.0A CN201510295126A CN105043679A CN 105043679 A CN105043679 A CN 105043679A CN 201510295126 A CN201510295126 A CN 201510295126A CN 105043679 A CN105043679 A CN 105043679A
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Abstract
The invention discloses a method for carrying out airtightness detection and antitrust processing synchronously on the fuel tank protection line. The method comprises of a) dosing: a groove preparation agent solution which is prepared in proportion is placed in an airtightness detection box of the fuel tank production line and used for airtightness detection and antitrust processing; 2) airtightness detection and antitrust processing: a blank fuel tank whose perforated portions are shielded by shielding devices is placed in the groove preparation agent solution in the step 1) and immsersed, and anti-thrust processing is carried out on the surface of the fuel tank, which is qualified in detection, during immersion; and 3) air drying: the fuel tank in the step 2) is removed and placed in position of normal temperature and air-dried, so that a complete aqueous antitrust film is formed at the surface of the fuel tank. The fuel tank is arranged in the groove preparation agent solution in the immersion manner, airtightness detection is combined with antitrust processing, the aqueous antitrust film is formed at the surface of the fuel tank, and the technical steps and labor cost are reduced; and a used antitrust agent is made of an environment-protective material, so that environmental pollution is avoided.
Description
Technical field
The invention belongs to coated metal pre-treatment field, while particularly a kind of fuel tank does air-leakage test on a production line, tank surface is carried out to the method for antirust treatment.
Background technology
Fuel tank production line comprises the production process such as fuel tank welding, air-leakage test, antirust treatment, application usually, air-leakage test and antirust treatment are respectively two procedures, enter fuel tank antirust treatment operation after completing fuel tank air-leakage test operation, existing current fuel tank antirust treatment adopts spray rust preventive oil mostly.Rust preventive oil is in course of injection, and because fuel tank profile exists depressed area, the oil film of spraying is uneven in depressed area attachment, easily produces corrosion herein, because the generation of corrosion can not meet coating specification before application; Because of the antirust employing of tank surface is the process of spray rust preventive oil, normal temperature method can not be adopted all to be eliminated by the rust preventive oil of tank surface, can not realize the degreasing of Coating Pretreatment normal temperature and produce in Coating Pretreatment; In addition, because oil-injection machine obturation effect is poor in the process of spray rust preventive oil, the greasy dirt of injection causes great pollution to production scene surrounding environment, and air-leakage test and antirust treatment are set to two procedures in addition, adds technological operation step and hand labor cost.
Summary of the invention
In order to air-leakage test before solving above-mentioned oil tank finishing and antirust treatment carry out in batches, when the defect that explained hereafter cost is high and spray rust preventive oil fuel tank depressed area because of oil film attachment uneven, depressed area easily produces the deficiency of corrosion, the invention provides a kind of method of synchronously carrying out air-leakage test and antirust treatment on fuel tank production line, the distributing bath solution solution configured is inserted in the air-leakage test case of the method before oil tank finishing, one deck waterborne anti-rust film is formed at tank surface and depressed area while adopting infusion method to carry out air-leakage test to fuel tank, before avoiding application, fuel tank produces corrosion, impact is produced.Air-leakage test and antirust treatment two procedures are united two into one, decreases technological operation step, not only enhance productivity but also reduce hand labor cost.
The present invention is achieved through the following technical solutions:
Fuel tank production line synchronously carries out the method for air-leakage test and antirust treatment, comprises the following steps:
1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment;
2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface;
3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.
Further, step 1) dosing be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 50 ~ 70 grams per liters.
Further, step 2) air-leakage test and antirust treatment be specially:
A) during environment temperature < 15 DEG C, distributing bath solution solution temperature 15 ~ 20 DEG C, air pressure 0.03 ~ 0.05Mpa, soaks 0.5 minute;
B) during environment temperature > 15 DEG C, distributing bath solution solution temperature normal temperature, air pressure 0.03 ~ 0.05Mpa, soaks 0.5 minute;
Further, step 3) dry at normal temperatures, place 7 days, tank surface non-corroding.
The invention has the beneficial effects as follows:
By adopting infusion method fuel tank to be placed in distributing bath solution solution in air-leakage test case, antirust treatment being carried out to tank surface and depressed area detection is bubble-tight simultaneously, making tank surface form one deck waterborne anti-rust film, and also have following advantage:
1. production efficiency improves: original air-leakage test and antirust treatment two procedures are united two into one, decrease technological operation step, reduce hand labor cost.
2. environmental protection: the present invention adopts immersion type technique processing method, the rust preventive of use is ep-type material, to avoid in spraying process oil spout greasy dirt to the pollution of production environment.
3. the recycling of distributing bath solution solution: the distributing bath solution solution of air-leakage test and antirust treatment can Reusability, changes, improves the utilization factor of solution, reduce the consumption of solvent without the need to every day.
Embodiment
With specific embodiment, the present invention is further illustrated below, but the present invention is not by the restriction of following embodiment.
Embodiment 1
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 50 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.03Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature < 15 DEG C, distributing bath solution solution temperature is heated to 15 DEG C, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
Embodiment 2
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 60 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.04Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature < 15 DEG C, distributing bath solution solution temperature is heated to 18 DEG C, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
Embodiment 3
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 70 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.05Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature < 15 DEG C, distributing bath solution solution temperature is heated to 20 DEG C, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
Embodiment 4
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 50 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.03Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature > 15 DEG C, distributing bath solution solution temperature normal temperature, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
Embodiment 5
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 60 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.04Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature > 15 DEG C, distributing bath solution solution temperature normal temperature, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
Embodiment 6
Fuel tank welding production line is chosen qualified openpore fuel tank one, 1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment; Be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, and distributing bath solution solution concentration is 70 grams per liters.2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, air pressure 0.05Mpa, soak 0.5 minute, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface; Be specially: as environment temperature > 15 DEG C, distributing bath solution solution temperature normal temperature, meets soak time simultaneously; 3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.Be specially: dry at normal temperatures, place 7 days, tank surface does not find corrosion.
According to the demand of fuel tank air-leakage test, distributing bath solution solution need regularly replace the cleanliness ensureing solution, and in the present embodiment, distributing bath solution solution uses change for three days.
Claims (4)
1. on fuel tank production line, synchronously carry out the method for air-leakage test and antirust treatment, it is characterized in that: comprise the following steps:
1) dosing: the distributing bath solution solution configured in proportion is inserted in the air-leakage test case of fuel tank production line, for fuel tank air-leakage test and antirust treatment;
2) air-leakage test and antirust treatment: by welded visual examination qualified after openpore fuel tank put into step 1 with covering after porose position is covered by tool) solution of air-leakage test case soaks, observe weld seam position bubble-free to emerge, product is qualified; Otherwise, then defective, detect qualified fuel tank, while immersion, antirust treatment is carried out to tank surface;
3) drying: by step 2) fuel tank through air-leakage test after qualified and antirust treatment takes out to place and dries at normal temperatures, makes tank surface form the complete waterborne anti-rust film of one deck.
2. method of synchronously carrying out air-leakage test and antirust treatment on fuel tank production line according to claim 1, it is characterized in that: step 1) dosing be specially: at normal temperatures, use rust preventive mixes by a certain percentage with water, in fuel tank air-leakage test case, be configured to distributing bath solution solution, distributing bath solution solution concentration is 50 ~ 70 grams per liters.
3. method of synchronously carrying out air-leakage test and antirust treatment on fuel tank production line according to claim 1, is characterized in that: step 2) air-leakage test and antirust treatment be specially:
A) during environment temperature < 15 DEG C, distributing bath solution solution temperature 15 ~ 20 DEG C, air pressure 0.03 ~ 0.05Mpa, soaks 0.5 minute;
B), during environment temperature > 15 DEG C, distributing bath solution solution temperature normal temperature, air pressure 0.03 ~ 0.05Mpa, soaks 0.5 minute.
4. method of synchronously carrying out air-leakage test and antirust treatment on fuel tank production line according to claim 1, is characterized in that: step 3) dry at normal temperatures, place 7 days, tank surface non-corroding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510295126.0A CN105043679A (en) | 2015-06-02 | 2015-06-02 | Method for carrying out airtightness detection and antitrust processing synchronously on fuel tank production line |
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| CN201510295126.0A CN105043679A (en) | 2015-06-02 | 2015-06-02 | Method for carrying out airtightness detection and antitrust processing synchronously on fuel tank production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323563A (en) * | 2016-08-25 | 2017-01-11 | 上海航天设备制造总厂 | Satellite packing case airtight defect detection method |
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| CN1699949A (en) * | 2005-05-26 | 2005-11-23 | 中国第二重型机械集团公司 | Pressure testing liquid for metal container and conduit and preparation process thereof |
| JP2014162294A (en) * | 2013-02-22 | 2014-09-08 | Unipres Corp | Method for forming coating film to vehicular fuel tank |
| JP2015064352A (en) * | 2013-09-02 | 2015-04-09 | 株式会社ササクラ | Valve cooling method |
| CN104549036A (en) * | 2014-12-31 | 2015-04-29 | 鲁东大学 | Foaming agent for sealing member pressure testing |
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2015
- 2015-06-02 CN CN201510295126.0A patent/CN105043679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699949A (en) * | 2005-05-26 | 2005-11-23 | 中国第二重型机械集团公司 | Pressure testing liquid for metal container and conduit and preparation process thereof |
| JP2014162294A (en) * | 2013-02-22 | 2014-09-08 | Unipres Corp | Method for forming coating film to vehicular fuel tank |
| JP2015064352A (en) * | 2013-09-02 | 2015-04-09 | 株式会社ササクラ | Valve cooling method |
| CN104549036A (en) * | 2014-12-31 | 2015-04-29 | 鲁东大学 | Foaming agent for sealing member pressure testing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323563A (en) * | 2016-08-25 | 2017-01-11 | 上海航天设备制造总厂 | Satellite packing case airtight defect detection method |
| CN106323563B (en) * | 2016-08-25 | 2018-08-03 | 上海航天设备制造总厂 | A kind of airtight defect inspection method of Packaging Case for Satellite |
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Effective date of registration: 20151102 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Applicant after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: 400054 Huaxi Industrial Park, Banan District, Chongqing Road, No. 1 Applicant before: Chongqing Jianshe Motorcycle Co., Ltd. |
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Application publication date: 20151111 |
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