CN102485479A - Manufacturing technological process of heat seal heat shrinkable sleeve - Google Patents
Manufacturing technological process of heat seal heat shrinkable sleeve Download PDFInfo
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- CN102485479A CN102485479A CN2010105666805A CN201010566680A CN102485479A CN 102485479 A CN102485479 A CN 102485479A CN 2010105666805 A CN2010105666805 A CN 2010105666805A CN 201010566680 A CN201010566680 A CN 201010566680A CN 102485479 A CN102485479 A CN 102485479A
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention relates to a manufacturing technological process of a heat seal heat shrinkable sleeve. The technological process comprises the following steps of: 1) taking out plastic base-material and melt, manufacturing a composite semi-finished product material of a substrate layer and a melt layer and manufacturing a heat shrinkable tape finished products with different widths and lengths according to diameter requirements; 2) cutting on the heat shrinkable substrate and peeling the substrate layer and the melt layer compounded into a double-layer heat shrinkable tape; 3) carrying out electrothermal heat seal on the substrate / substrate two ends on equipment; 4) carrying out stitching cooling on the part of the substrate treated with heat seal to satisfy temperature requirement of a next operation; 5) carrying out wind-heat heat seal on the cooled substrate and a first sol layer; 6) carrying out wind-heat heat seal on the first sol layer and a second sol layer; 7) finishing a welding side terminal. The invention effectively solves a problem of shrinkage of a heat shrinkable tape, substantially increases production efficiency and has wide market prospect.
Description
Technical field
The present invention relates to a kind of manufacturing process for plastic product, be specifically related to a kind of heat seal type heat shrinking sleeve manufacture craft flow process.
Background technology
Middle and later periods nineties oil and gas industry begins to use the thermal contraction product, is extended to fields such as town gas pipeline, water supply pipe afterwards.The equipment of producing shrink belt at present is relatively backward technically, has influenced the production of thermal contraction product, has seriously restricted the development of industry.Prior art relies on to form when producing the PE base material to stretch when producing heat shrinking sleeve, through gluing behind the x ray irradiation x, becomes the thermal contraction product; But, can't form accurate control shrinkage factor, greatly in 20-30% because automatization level is low; Amount of contraction is unstable, causes engineering construction slow, and is consuming time; Power consumption, coated reliability is poor, influences construction quality.
Summary of the invention
The present invention has overcome the deficiency of prior art; Proposed a kind of heat seal type heat shrinking sleeve manufacture craft flow process, this flow process has solved the technical problem that base material stretches again behind the irradiation, but one-step method production thermal contraction product; Form the serialization operation, improved the shrinkage factor of thermal contraction product greatly.
Technical scheme of the present invention is: a kind of heat seal type heat shrinking sleeve manufacture craft flow process comprises following making step:
1) gets the raw materials ready
Taking out plastic matrix and melten gel, is that one to one ratio is produced compound semifinished material for substrate layer and melten gel layer in mass ratio, and requirement prepares different in width, the shrink belt finished product of different length according to diameter.
2) preliminary treatment
To pyrocondensation base material otch, do peeling off of substrate layer and melten gel layer to compound shrink belt for bilayer.
3) base material/substrate layer heat seal
The electric heating heat seal is carried out at base material/base material two ends on equipment
4) base material/substrate layer cooling
The laminated type cooling is carried out at base material position after the heat seal, makes it reach the temperature requirement that is fit to subsequent processing.
5) base material/melten gel layer heat seal
Cooled base material and ground floor colloidal sol are carried out the wind-heat heat seal.
6) melten gel/melten gel layer heat seal
Ground floor colloidal sol and second layer colloidal sol are carried out the wind-heat heat seal.
7) welding side arrangement
The part overlap that finishing occurs after because of heat seal guarantees that goods are attractive in appearance.
In the stripping process of pre-treatment step, behind pyrocondensation base material otch, make K cryogenic treatment, temperature is used the 8-10kg pulling force then at subzero 10 ° to subzero 15 °, and glue is separated with base material;
In base material and base material heat seal process, base material temperature is under 240-270 ° state, and working pressure is 1.5-1.9MPa, stops to stablize 160-180 second;
In base material laminated type cooling procedure, base material is applied under the zero temperature 5 to 0 °, to the base material rapid cooling, pressure is 1.0-1.5MPa, 140-160 second stabilization time;
In base material and PUR heat seal process, PUR and base material paste, and temperature range is 220-240 °, and pressure is 0.1-0.5MPa, time 100-130 second;
In PUR and PUR heat seal process, temperature 200-230 °, pressure 0.1-0.4MPa, time 90-120 second.
The present invention has following beneficial effect:
The present invention efficiently solves the low problem of the shrinkage factor of shrink belt in work progress, utilizes said step, has realized base material stretching, the production of gluing one-step method; Make production process simplification, unified; Production efficiency significantly improves, and reliable product quality has improved the construction quality in construction greatly.
The specific embodiment
Further specify below in conjunction with embodiment.
Embodiment 1:
1) gets the raw materials ready; Get plastic matrix 28kg, melten gel 28kg produces compound semifinished material for substrate layer and melten gel layer, requires the shrink belt finished product of preparation proper width and length according to diameter.
2) preliminary treatment, stripping process to pyrocondensation base material otch, is made subzero 10 degree of K cryogenic treatment, uses the 8kg pulling force then, and glue is separated with base material;
3) base material and base material heat seal, base material is under the state of 240 degree, and 1.5MPa pressure was stablized 160 seconds;
4) base material laminated type cooling is to the subzero 5 degree rapid coolings of base material, pressure 1.0MPa, 140 seconds time;
5) base material and PUR heat seal, PUR and base material paste, temperature 220 degree, pressure 0.1MPa, 100 seconds time;
6) PUR and PUR heat seal, temperature 200 degree, pressure 0.1MPa, 90 seconds time;
7) the part overlap of finishing because of occurring after the heat seal guarantees that goods are attractive in appearance, obtains shrinkage factor and be 53% sample.
Embodiment 2:
1) gets the raw materials ready; Get plastic matrix 50kg, melten gel 50kg produces compound semifinished material for substrate layer and melten gel layer, requires the shrink belt finished product of preparation proper width and length according to diameter.
2) preliminary treatment, stripping process to pyrocondensation base material otch, is made subzero 15 degree of K cryogenic treatment, uses the 10kg pulling force then, and glue is separated with base material;
3) base material and base material heat seal, base material is under the state of 270 degree, and 1.9MPa pressure was stablized 180 seconds;
4) base material laminated type cooling, to the base material rapid cooling to zero degree, pressure 1.5MPa, 160 seconds time;
5) base material and PUR heat seal, PUR and base material paste, temperature 240 degree, pressure 0.5MPa, 130 seconds time;
6) PUR and PUR heat seal, temperature 230 degree, pressure 0.4MPa, 120 seconds time;
7) the part overlap of finishing because of occurring after the heat seal guarantees that goods are attractive in appearance, obtains shrinkage factor and be 58% sample.
Embodiment 3:
1) gets the raw materials ready; Get plastic matrix 80kg, melten gel 80kg produces compound semifinished material for substrate layer and melten gel layer, requires the shrink belt finished product of preparation proper width and length according to diameter.
2) preliminary treatment, stripping process to pyrocondensation base material otch, is made subzero 13 degree of K cryogenic treatment, uses the 9kg pulling force then, and glue is separated with base material;
3) base material and base material heat seal, base material is under the state of 250 degree, and 1.7MPa pressure was stablized 150 seconds;
4) base material laminated type cooling is to extremely subzero 4 degree of base material rapid cooling, pressure 1.2MPa, 160 seconds time;
5) base material and PUR heat seal, PUR and base material paste, temperature 230 degree, pressure 0.4MPa, 120 seconds time;
6) PUR and PUR heat seal, temperature 220 degree, pressure 0.3MPa, 110 seconds time;
7) the part overlap of finishing because of occurring after the heat seal guarantees that goods are attractive in appearance, obtains the sample of shrinkage factor 56%.
Embodiment 4:
1) gets the raw materials ready; Get plastic matrix 300kg, melten gel 300kg produces compound semifinished material for substrate layer and melten gel layer, requires the shrink belt finished product of preparation proper width and length according to diameter.
2) preliminary treatment, stripping process to pyrocondensation base material otch, is made subzero 14 degree of K cryogenic treatment, uses the 9kg pulling force then, and glue is separated with base material;
3) base material and base material heat seal, base material is under the state of 245 degree, and 1.6MPa pressure was stablized 170 seconds;
4) base material laminated type cooling is to extremely subzero 3 degree of base material rapid cooling, pressure 1.4MPa, 150 seconds time;
5) base material and PUR heat seal, PUR and base material paste, temperature 235 degree, pressure 0.3MPa, 110 seconds time;
6) PUR and PUR heat seal, temperature 200 degree, pressure 0.2MPa, 100 seconds time;
7) the part overlap of finishing because of occurring after the heat seal guarantees that goods are attractive in appearance, obtains shrinkage factor and be 51% sample.
Embodiment 5:
1) gets the raw materials ready; Get plastic matrix 100kg, melten gel 100kg produces compound semifinished material for substrate layer and melten gel layer, requires the shrink belt finished product of preparation proper width and length according to diameter.
2) preliminary treatment, stripping process to pyrocondensation base material otch, is made subzero 13 degree of K cryogenic treatment, uses the 10kg pulling force then, and glue is separated with base material;
3) base material and base material heat seal, base material is under the state of 270 degree, and 1.9MPa pressure was stablized 180 seconds;
4) base material laminated type cooling is to extremely subzero 5 degree of base material rapid cooling, pressure 1.5MPa, 160 seconds time;
5) base material and PUR heat seal, PUR and base material paste, temperature 225 degree, pressure 0.4MPa, 125 seconds time;
6) PUR and PUR heat seal, temperature 210 degree, pressure 0.3MPa, 115 seconds time;
7) the part overlap of finishing because of occurring after the heat seal guarantees that goods are attractive in appearance, obtains shrinkage factor and be 49% sample.
Be the basis with above-mentioned thought, can make suitable change and modification in the enlightenment scope of invention thought of the present invention.
Claims (6)
1. heat seal type heat shrinking sleeve manufacture craft flow process is characterized in that: comprise following making step:
1) gets the raw materials ready
Taking out plastic matrix and melten gel, is that one to one ratio is produced compound semifinished material for substrate layer and melten gel layer in mass ratio, and requirement prepares different in width, the shrink belt finished product of different length according to diameter;
2) preliminary treatment
To pyrocondensation base material otch, do peeling off of substrate layer and melten gel layer to compound shrink belt for bilayer;
3) base material/substrate layer heat seal
The electric heating heat seal is carried out at base material/base material two ends on equipment;
4) base material/substrate layer cooling
The laminated type cooling is carried out at base material position after the heat seal, makes it reach the temperature requirement that is fit to subsequent processing;
5) base material/melten gel layer heat seal
Cooled base material and ground floor colloidal sol are carried out the wind-heat heat seal;
6) melten gel/melten gel layer heat seal
Ground floor colloidal sol and second layer colloidal sol are carried out the wind-heat heat seal;
7) welding side arrangement
The part overlap that finishing occurs after because of heat seal guarantees that goods are attractive in appearance;
2. heat seal type heat shrinking sleeve manufacture craft flow process according to claim 1 is characterized in that: in the stripping process of step 2, behind pyrocondensation base material otch; Make K cryogenic treatment; Temperature is used the 8-10kg pulling force then at subzero 10 ° to subzero 15 °, and glue is separated with base material;
In the base material and base material heat seal process of step 3, base material temperature is under 240-270 ° state, and working pressure is 1.5-1.9MPa, stops to stablize 160-180 second.
3. heat seal type heat shrinking sleeve manufacture craft flow process according to claim 1; It is characterized in that: in the base material laminated type cooling procedure of step 4, base material is applied under the zero temperature 5 to 0 °, the base material rapid cooling; Pressure is 1.0-1.5MPa, 140-160 second stabilization time;
Step 5 in base material and PUR heat seal process, PUR and base material paste, temperature range is 220-240 °, pressure is 0.1-0.5MPa, time 100-130 second.
4. heat seal type heat shrinking sleeve manufacture craft flow process according to claim 2 is characterized in that: in the PUR and PUR heat seal process of step 6, and temperature 200-230 °, pressure 0.1-0.4MPa, time 90-120 second.
5. heat seal type heat shrinking sleeve manufacture craft flow process according to claim 3 is characterized in that: in the PUR and PUR heat seal process of step 6, and temperature 200-230 °, pressure 0.1-0.4MPa, time 90-120 second.
6. heat seal type heat shrinking sleeve manufacture craft flow process according to claim 5 is characterized in that: in the stripping process of step 2, behind pyrocondensation base material otch; Make K cryogenic treatment; Temperature is used the 8-10kg pulling force then at subzero 10 ° to subzero 15 °, and glue is separated with base material;
In the base material and base material heat seal process of step 3, base material temperature is under 240-270 ° state, and working pressure is 1.5-1.9MPa, stops to stablize 160-180 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010566680.5A CN102485479B (en) | 2010-12-01 | 2010-12-01 | Manufacturing technological process of heat seal heat shrinkable sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010566680.5A CN102485479B (en) | 2010-12-01 | 2010-12-01 | Manufacturing technological process of heat seal heat shrinkable sleeve |
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| Publication Number | Publication Date |
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| CN102485479A true CN102485479A (en) | 2012-06-06 |
| CN102485479B CN102485479B (en) | 2014-07-23 |
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| CN201010566680.5A Expired - Fee Related CN102485479B (en) | 2010-12-01 | 2010-12-01 | Manufacturing technological process of heat seal heat shrinkable sleeve |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327908A (en) * | 2001-07-05 | 2001-12-26 | 卢沛女 | Method for manufacturing thermally shrinking dual-layer sleeved tube |
| US20030129911A1 (en) * | 2001-11-28 | 2003-07-10 | Lewallyn Michael A. | Waterproof construction and method of making same |
| CN101139719A (en) * | 2006-09-08 | 2008-03-12 | 绵阳东方特种工程塑料有限公司 | Composite winding belt for steel pipe out-shell conservation and method for producing and using same |
| CN101526158B (en) * | 2009-04-16 | 2010-06-23 | 黑龙江省科学院技术物理研究所 | Hot shrinkage/melt bush and manufacturing method and construction method thereof |
-
2010
- 2010-12-01 CN CN201010566680.5A patent/CN102485479B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327908A (en) * | 2001-07-05 | 2001-12-26 | 卢沛女 | Method for manufacturing thermally shrinking dual-layer sleeved tube |
| US20030129911A1 (en) * | 2001-11-28 | 2003-07-10 | Lewallyn Michael A. | Waterproof construction and method of making same |
| CN101139719A (en) * | 2006-09-08 | 2008-03-12 | 绵阳东方特种工程塑料有限公司 | Composite winding belt for steel pipe out-shell conservation and method for producing and using same |
| CN101526158B (en) * | 2009-04-16 | 2010-06-23 | 黑龙江省科学院技术物理研究所 | Hot shrinkage/melt bush and manufacturing method and construction method thereof |
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| CN102485479B (en) | 2014-07-23 |
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