CN103697248A - Production process for continuously coating nylon on surface of welding pipe - Google Patents
Production process for continuously coating nylon on surface of welding pipe Download PDFInfo
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- CN103697248A CN103697248A CN201310745551.6A CN201310745551A CN103697248A CN 103697248 A CN103697248 A CN 103697248A CN 201310745551 A CN201310745551 A CN 201310745551A CN 103697248 A CN103697248 A CN 103697248A
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- nylon
- pipe
- thickness
- galvanized pipe
- tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a production process for continuously coating nylon on the surface of a welding pipe. A galvanized pipe becomes a nylon pipe product after being subjected to feeding and uncoiling, pipe connecting, drawing, straightening, ultrasonic cleaning, primer coating, drying, induction heating, nylon coating, cooling, detecting, drawing, shuttling to be straight, flaw detection, code spraying, cutting, inspecting and packaging. The production process is simple and easy to implement, and the product is high in performance-cost ratio, smooth in coating, uniform in color and luster, high in adhering force and resistant to corrosion.
Description
Technical field
The present invention relates to the process for surface coating of the Brake pipe of automobile industry.
Background technique
Traditional metal wire material surface is coated with nylon, be mainly used in cable production industry, the diameter based on sub-thread or stranded cable is less, the nylon layer thinner thickness of extruding, and nylon layer thickness is in a circumferential direction also very inhomogeneous, so its painting nylon technique is better simply.
It is very high that the Brake pipe surface of automobile industry is coated with the technical requirements of nylon, and not only the material of Brake pipe is ferrous metal, and diameter is much larger than the diameter of cable material.And nylon layer thickness and the thickness difference after coating also required strictly, high in the adhesion requirement of tube surfaces to nylon layer, this is that traditional cable painting nylon technique can not reach its requirement.
Summary of the invention
The object of the invention is to propose: at surface of welded pipe, be coated with continuously the production technology of nylon, it is by the technique of the surface coating nylon of bilayer or single laminate roll welded tube on a kind of manufacturing mechanism being coated with continuously nylon.
Technological scheme of the present invention realizes as follows:
Technological process of the present invention comprises material loading uncoiling, adapter, traction, alignment, Ultrasonic Cleaning, primer coating, oven dry, induction heating, painting nylon, cooling, detection, traction, alignment, flaw detection, coding, cut-out, check and packing
1, material loading uncoiling: the zinc-plated qualified bimetallic tube of two bundles or mono-layer tube are placed in respectively on two uncoiling plate rails, remove strapping strand, make the inside and outside circle end of pipe in order, without being wound around, draw the pipe end of galvanized pipe on one of them uncoiling plate rail, with the distortion elbow of circular knife excision pipe end, and alignment pipe end;
2, take over: first production does not need to take over, before the first coiled material is complete, tail end tubing is inserted in volume Two tubing head end, and proofread and correct pipe end;
3, traction: the galvanized pipe on uncoiling plate rail is drawn, and the motion speed of galvanized pipe after traction is 15-60m/min;
4, alignment: the galvanized pipe alignment after traction, the straightness accuracy≤5mm/m of its tubing;
5, Ultrasonic Cleaning: inject passivator and water in 5% ratio in ultrasonic cleaner, passivator is Boderite 1455SF, galvanized pipe carries out passivation in groove, used for galvanized tube hot blast drying after passivation, its hot blast temperature is 80-100 ℃, galvanized pipe surface after hot-air seasoning should be dried, and feel surface is without moisture;
6, primer coating: in end agent groove, add the end agent stirring: Nylon Primer 393640, thinner: Primer Thinner 8196000, and by the viscosity of end agent in DIN4 viscometer determining groove, its viscosity is at 9-23 within the scope of second; During normal production, within every 4 hours, measure a viscosity, if agent coating in the end is inhomogeneous, should adjust in time the annular gas scraper on blowing device, make it in central position, can also regulate the air pressure of blowing device, the atmospheric pressure value of its blowing device is 0.25-0.35MPa,
7, dry: the galvanized pipe through primer coating enters in baking box, its electric heater and blower carry out hot-air seasoning by galvanized pipe and are dried, and heating-up temperature is 220-245 ℃; Micro-yellow is answered on the surface of the galvanized pipe after oven dry,
8, induction heating: the surperficial temperature of galvanized pipe is heated between 220-245 ℃;
9, be coated with nylon: its nylon 12 is dried more than 4 hours before dropping into nylon extruder, bake out temperature is 80 ℃, the extruder head working pressure of nylon extruder is 25-215bar, coating thickness consumption: the galvanized pipe nylon consumption 6.5-18.0g/m of diameter 4.76-12mm;
Be coated with nylon thickness: the surface of galvanized pipe is nylon tube after being coated with nylon, nylon tube thickness is by the requirement of product,
Nylon thickness measure: use ultrasonic thickness gage inspection, its one-tenth-value thickness 1/10 should be controlled in the claimed range of product; If one-tenth-value thickness 1/10 increases, reduce nylon consumption, if one-tenth-value thickness 1/10 diminishes, increase nylon consumption, the nylon tube appearance luster after coating is consistent, smooth, without bubble, buildup and holiday;
10,, cooling: the nylon tube after coating also will through the cooling and cold water of hot water cooling twice cooling, hot water is first cooling, its temperature is 35-55 ℃; Cooling after after cold water, its temperature is 15-25 ℃; Cooled nylon tube temperature is normal temperature, then through the blower fan of air pressure 0.5-0.7MPa, dries up the surperficial moisture of tubing;
11, detect: Calibration: press product requirement and control caliber size in claimed range;
12, traction: running under power parameter: motion speed is 60-15m/min,
13, alignment: the nylon tube after traction carries out alignment, its straightness accuracy≤5mm/m,
14, flaw detection: the nylon tube after traction leans out and take over to hold with turbine flaw detector, and carry out mark and be convenient to follow-up cut-out;
15, coding: press product requirement, color, content etc. are carried out coding, and the calligraphy and painting of ejection should be clear;
16, cut off: 1. cut off and have after the nylon tube of joint, pick out, 2. cut off after outward appearance has bubble, holiday, buildup or rough nylon tube and pick out, the length dimension of 3. pressing product cuts off;
17, check and packing: length and outside dimension are pressed the qualified rear packing warehouse-in of product requirement.
Advantage of the present invention is;
1, of the present invention simple, cost is low, and the product cost performance of production is high.
2, the good quality of product that the present invention produces, its coating is smooth, color and luster even, strong adhesion and corrosion-resistant.
Embodiment
Below use two embodiments, the present invention is further illustrated;
Embodiment one
Galvanized pipe diameter 4.76mm, coating thickness: 120 microns, poor :≤0.03 micron of thickness coatings, applies processing by technological scheme of the present invention to it.
1, material loading uncoiling; Galvanized pipe two bundles that are 4.76mm bilayer by diameter are put into respectively on two uncoiling plate rails 2, remove strapping strand, make pipe outer ring end in order, make it without being wound around, and draw the pipe end of galvanized pipe tubing on one of them switch plate rail, with the elbow of circular knife excision pipe end distortion, and alignment pipe end;
2, take over: the 1st volume galvanized pipe does not need to take over, after the 1st pipe crimping material, its tail end is inserted in volume Two galvanized pipe head end, and alignment pipe end;
3, traction: first volume galvanized pipe is drawn, and its hauling speed is 15-60m/min, after the traction of first volume galvanized pipe, draws the volume Two galvanized pipe after taking over continuously;
4, alignment: the galvanized pipe of the diameter 4.76mm after traction carries out alignment, its straightness accuracy≤5mm/m;
5, Ultrasonic Cleaning: passivator is Boderite 1455SF, passivator and water are equipped with and stir evenly rear injection ultrasonic cleaner and clean tubing and passivation in 5% ratio, tubing after passivation, use air heater hot blast drying, the temperature of its hot blast is between 80-100 ℃, after hot blast drying, the surface of galvanized pipe should be dried without moisture;
6, primer coating: in end agent groove, add end agent Nylon Primer 393640, and thinner Primer Thinner 8196000, make viscosity reach 9-23 second, and stir, and by DIN4 viscometer determining viscosity, while normally producing, within every 4 hours, measure a viscosity number, if coating end agent is partially thick or partially thin, should adjust in time the annular gas scraper on blowing device, make it in central position, also will adjust blowing device pressure, the atmospheric pressure value that makes its blowing device is 0.25-0.35MPa
7, dry: the tubing through primer coating enters in baking box, its electric heater and blower tube surfaces are dried to dry, and the temperature of heating is 220-245 ℃, the micro-yellow of dried tube surfaces;
8, induction heating: the surperficial temperature of galvanized pipe is heated between 220-245 ℃;
9, be coated with nylon: 1. open the UBESTA 3020X29L after bag, before production, should carry out drier 4 hours, bake out temperature is 80 ℃;
2. the working pressure of extruder head: 25-215bar,
3. nylon thickness consumption: 6.5-18.0g/m is set;
Galvanized pipe after drying is entered in nylon extruder and applies nylon, and detect its thickness with ultrasonic thickness gage, its thickness should be in control range (as far as possible in interposition), otherwise adjusts nylon consumption, if thickness and external diameter increase, reduce nylon thickness consumption, thickness and external diameter reduce, and increase nylon thickness consumption, and the outward appearance of range estimation and feel inspection product answers color and luster consistent, smooth, without bubble, buildup and holiday;
9, cooling: the nylon tube after coating nylon is first cooling and rear cooling with cold water with hot water, the water-cooled temperature of heat is 35-55 ℃, cold water-cooled temperature is 15-25 ℃, and cooled nylon tube is normal temperature, then the blower fan that is 0.5-0.7MPa through air pressure dries up the moisture on nylon tube surface;
10, detect: cooled nylon tube is measured with instrument for measuring thickness: 0.03 micron of thickness difference <
11, traction: hauling speed 60-15m/min,
12, alignment: the nylon tube after traction carries out alignment, its straightness accuracy≤5mm/m,
13, flaw detection: the nylon tube after traction leans out pipe with eddy current flaw detec and takes over end;
14, coding: spray color etc. at product, its character-spacing is consistent, and calligraphy and painting is clear;
15, cut off: 1. cutting nylon pipe joint end and outward appearance tubing defective, is 2. that 6 meters of of nylon tube length dimension cut off by product size requirement;
16, check and packing
Press product requirement check: diameter: 4.76mm, coating thickness: 120 microns, poor :≤0.03 micron of thickness coatings, length dimension: 6 meters, outward appearance; Without bubble, holiday, buildup or rough;
The product being up to the standards is packed, put in storage.
Embodiment two
Galvanized pipe diameter 12mm, coating thickness: 180 microns, poor :≤0.03 micron of thickness coatings, applies processing by technological scheme of the present invention to it.
1, material loading uncoiling; Galvanized pipe two bundles that are 12mm bilayer by diameter are put into respectively on two uncoiling plate rails, remove strapping strand, make pipe outer ring end in order, make it without being wound around, and draw the pipe end of galvanized pipe tubing on one of them switch plate rail, with the elbow of circular knife excision pipe end distortion, and alignment pipe end;
2, take over: the 1st volume galvanized pipe does not need to take over, after the 1st zinc-plated pipe crimping, its tail end is inserted in volume Two galvanized pipe head end, and alignment pipe end;
3, traction: first volume galvanized pipe is drawn, and its hauling speed is 15-60m/min, after the traction of first volume galvanized pipe, draws the volume Two galvanized pipe after taking over continuously;
4, alignment: the zinc-plated tubing after traction carries out alignment, its straightness accuracy≤5mm/m,
5, Ultrasonic Cleaning: inject passivator in ultrasonic cleaner, passivator is Boderite 1455SF, ratio outfit in 5% stirs evenly groove in rear injection and cleans tubing, clean the laggard row passivation of tubing, tubing after passivation, uses air heater hot blast drying, and the temperature of its hot blast is 80-100 ℃, after hot blast drying, the surface of tubing should be dried without moisture;
6, primer coating: add end agent Nylon Primer 393640 in end agent groove, with thinner Primer Thinner 8196000, make its viscosity number reach 9-23 second, and stir, during normal production, within every 4 hours, measure a viscosity, if coating end agent is partially thick or partially thin, should adjust in time the annular gas scraper on blowing device, make it in central position, also will adjust blowing device pressure, the atmospheric pressure value that makes its blowing device is 0.25-0.35MPa
7, dry: the tubing through primer coating enters in baking box, its electric heater and blower tube surfaces are dried to dry, and the temperature of heating is 220-245 ℃, the micro-yellow of dried tube surfaces;
8, induction heating: the surperficial temperature of galvanized pipe is heated between 220-245 ℃;
9, be coated with nylon: 1. open the UBESTA 3020X29L after bag, before nylon particle manufacture, should carry out drier 4h, nylon particle bake out temperature is 80 ℃;
2. the working pressure of extruder head: 25-215bar,
3. nylon thickness consumption: 6.5-18.0g/m is set;
Galvanized pipe after drying is entered in nylon extruder and applies nylon, and detect its thickness with ultrasonic thickness gage, its thickness should be in control range (as far as possible in interposition), otherwise adjusts the consumption of nylon, if thickness increases, reduce nylon thickness consumption, thickness reduces, and increases nylon thickness consumption, and the outward appearance of range estimation and feel inspection product answers color and luster consistent, smooth, without bubble, buildup and holiday;
9, cooling: the nylon tube after coating nylon is first cooling and rear cooling with cold water with hot water, the water-cooled temperature of heat is 35-55 ℃, cold water-cooled temperature is 15-25 ℃, and cooled nylon tube is normal temperature, then the blower fan that is 0.5-0.7MPa through air pressure dries up the moisture on nylon tube surface;
10, measuring: cooled nylon tube is measured with instrument for measuring thickness: Hou Du is Cha≤and 0.03 micron
11, traction: hauling speed 60-15m/min,
12, alignment: the nylon tube after traction carries out alignment, its straightness accuracy≤5mm/m,
13, flaw detection: the tubing after traction leans out and takes over end with eddy current flaw detec;
14, coding: spray color etc. at product, its character-spacing is consistent, and calligraphy and painting is clear;
15, cut off: 1. cutting tip side and outward appearance nylon tube defective, is 2. that 6 meters of of nylon tube length dimension cut off by product size requirement;
16, check and packing: size: press product requirement and check external diameter, i.e. diameter 12mm, coating thickness: 180 microns, poor :≤0.03 micron of thickness coatings, length dimension: 6 meters, outward appearance; Without bubble, holiday, buildup or rough;
The product being up to the standards is packed, put in storage.
Claims (1)
1. at surface of welded pipe, be coated with continuously the production technology of nylon, it is characterized in that:
Comprise that material loading (1) uncoiling, (2) are taken over, (3) traction (3), (4) alignment (4), (5) Ultrasonic Cleaning, (6) primer coating, (7) ovens dry, (8) induction heating, (9) are coated with nylon, (10) are cooling, (11) detections, (12) traction, (13) alignment, (14) flaw detection, (15) coding, (16) cut-out, (17) are checked and pack:
(1), material loading uncoiling: the zinc-plated qualified bimetallic tube of two bundles or mono-layer tube are placed in respectively on two uncoiling plate rails, go out strapping strand, make the inside and outside circle end of pipe in order, without being wound around, draw the pipe end of galvanized pipe on one of them uncoiling plate rail, with the distortion elbow of circular knife excision pipe end, and alignment pipe end;
(2), take over: first production does not need to take over, and before the first coiled material is complete, tail end tubing is inserted in volume Two tubing head end, and proofread and correct pipe end;
(3), traction: the galvanized pipe on uncoiling plate rail is drawn, and the motion speed of galvanized pipe after traction is 15-60m/min;
(4), alignment: the galvanized pipe alignment after traction, the straightness accuracy≤5mm/m of its tubing;
(5), Ultrasonic Cleaning: inject passivator and water in 5% ratio in ultrasonic cleaner, passivator is Boderite 1455SF, galvanized pipe carries out passivation in groove, used for galvanized tube hot blast drying after passivation, its hot blast temperature is 80-100 ℃, galvanized pipe surface after hot-air seasoning should be dried, and feel surface is without moisture;
(6), primer coating: in end agent groove, add the end agent stirring: Nylon Primer 393640, thinner:: Primer Thinner 8196000, and by the viscosity of end agent in DIN4 viscometer determining groove, its viscosity is at 9-23 within the scope of second; During normal production, within every 4 hours, measure a viscosity, if agent coating in the end is inhomogeneous, should adjust in time the annular gas scraper on blowing device, make it in central position, can also regulate the air pressure of blowing device, the atmospheric pressure value of its blowing device is 0.25-0.35MPa,
(7), dry: the galvanized pipe through primer coating enters in baking box, and its electric heater and blower carry out hot-air seasoning by galvanized pipe and be dried, and heating-up temperature is 220-245 ℃; Micro-yellow is answered on the surface of the galvanized pipe after oven dry,
(8), induction heating: the surperficial temperature of galvanized pipe is heated between 220-245 ℃
(9), be coated with nylon: its nylon 12 is dried more than 4 hours before dropping into nylon extruder, bake out temperature is 80 ℃, the extruder head working pressure of nylon extruder is 25-215bar, nylon thickness consumption: the galvanized pipe nylon thickness consumption 6.5-18.0g/m of diameter 4.76-12mm;
Be coated with nylon thickness: the surface of galvanized pipe is nylon tube after being coated with nylon, nylon tube thickness is by the requirement of product,
Nylon thickness measure: use ultrasonic thickness gage inspection, its one-tenth-value thickness 1/10 should be controlled in the claimed range of product; If one-tenth-value thickness 1/10 increases, reduce nylon consumption, if one-tenth-value thickness 1/10 diminishes, increase nylon consumption, the nylon tube appearance luster after coating is consistent, smooth, without bubble, buildup and holiday;
(10), cooling: the nylon tube after coating also will through the cooling and cold water of hot water cooling twice cooling, hot water is first cooling, its temperature is 35-55 ℃; Cooling after after cold water, its temperature is 15-25 ℃; Cooled nylon tube temperature is normal temperature, then through the blower fan of air pressure 0.5-0.7MPa, dries up the surperficial moisture of tubing;
(11), detect: Calibration: press product requirement and control caliber size in claimed range;
(12), traction: running under power parameter: motion speed is 60-15m/min,
(13), alignment: the nylon tube after traction carries out alignment, its straightness accuracy≤5mm/m,
(14), flaw detection: the nylon tube after traction leans out and take over to hold with turbine flaw detector, and carries out mark and be convenient to follow-up cut-out;
(15), coding: press product requirement, color, content, certainly to put forward spacing consistent, and the calligraphy and painting of ejection should be clear;
(16), cut off: 1. cut off and have after the nylon tube of joint, pick out, 2. cut off after outward appearance has bubble, holiday, buildup or rough nylon tube and pick out, 3. by the length dimension requirement of product, cut off tubing;
(17), check and packing: length and outside dimension are pressed product requirement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745551.6A CN103697248B (en) | 2013-12-31 | 2013-12-31 | The production technique of nylon it is coated with continuously at surface of welded pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745551.6A CN103697248B (en) | 2013-12-31 | 2013-12-31 | The production technique of nylon it is coated with continuously at surface of welded pipe |
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| CN103697248A true CN103697248A (en) | 2014-04-02 |
| CN103697248B CN103697248B (en) | 2016-06-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108620503A (en) * | 2018-06-28 | 2018-10-09 | 长春市三才科技发展有限公司 | Long and thin metal pipeline transverse feeding mechanism and charging method |
| CN114273929A (en) * | 2021-12-16 | 2022-04-05 | 苏州金邦迪管业科技有限公司 | Metal tube production line and production process thereof |
| CN116460366A (en) * | 2023-06-01 | 2023-07-21 | 中国机械总院集团江苏分院有限公司 | Ultrasonic cutting machine and ultrasonic processing technology using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116460366A (en) * | 2023-06-01 | 2023-07-21 | 中国机械总院集团江苏分院有限公司 | Ultrasonic cutting machine and ultrasonic processing technology using same |
| CN116460366B (en) * | 2023-06-01 | 2023-08-29 | 中国机械总院集团江苏分院有限公司 | Ultrasonic cutting machine and ultrasonic processing technology using same |
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| CN103697248B (en) | 2016-06-15 |
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Address after: No. 127, Dongfang Avenue, Jingzhou high tech Development Zone, Jingzhou City, Hubei Province Patentee after: JINGDA (JINGZHOU) AUTOMOTIVE Co.,Ltd. Address before: 434000 127 Dongfang Road, hi tech Industrial Development Zone, Jingzhou, Hubei Patentee before: JINGDA (JINGZHOU) AUTOMOTIVE Co.,Ltd. |
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Denomination of invention: Production process of continuously coating nylon on the surface of welded pipes Effective date of registration: 20230802 Granted publication date: 20160615 Pledgee: China Everbright Bank Co.,Ltd. Jingzhou Branch Pledgor: JINGDA (JINGZHOU) AUTOMOTIVE CO.,LTD. Registration number: Y2023980050596 |
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