CN1319496A - Method for making plastics lined steel pipe - Google Patents
Method for making plastics lined steel pipe Download PDFInfo
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- CN1319496A CN1319496A CN 01107537 CN01107537A CN1319496A CN 1319496 A CN1319496 A CN 1319496A CN 01107537 CN01107537 CN 01107537 CN 01107537 A CN01107537 A CN 01107537A CN 1319496 A CN1319496 A CN 1319496A
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Abstract
The production method of steel pipe with plastic lining includes the following steps: firstly, fixing galvanized weld steel pipe on the machine frame of large-stroke drawing bench, using matched broaching tool to make broaching operation, then placing plastic pipe whose outer diameter is less than inside diameter of steel pipe and length is longer than that of steel pipe on the above-mentioned machine frame, mounting glue-storing device between steel pipe and plastic pipe, making plastic pipe pass through the glue-storing device, and making external surface of said plastic pipe possess a layer of uniformly-coated glue, pushing the plastic pipe with glue layer into the interior of steel pipe, sealing two ends of steel pipe with end plate, heating in heating furnace and hardening glue so as to obtain the invented steel pipe with plastic lining with stable property.
Description
The present invention relates to a kind of manufacture method that is used to carry hot water or cold water's bushing pipe steel pipe.
Line plastic-steel tube is made of outer steel layer and inner liner, outer steel layer can effectively be resisted bump, has the mechanical property of conventional pipelines, and inner liner is selected nontoxic, corrosion-resistant macromolecule organic material, therefore line plastic-steel tube is the ideal conduit of carrying hot and cold water, is widely used at present.Chinese patent discloses a kind of manufacture method of steel-plastics composite pipe, publication number is CN1073906A, this manufacture method rolls out pit and burr one by one with fluff mechanism with the steel pipe inwall earlier, pack into the plastic liner that its outer wall had before scribbled adhesive at the steel duct sky, can adopt three diverse ways to make pit and the burr and the tight riveted of plastic liner of steel pipe inwall then respectively, the one, steel pipe by the little punching block of relative aperture outer diameter of steel pipes, diminishes the internal diameter of steel pipe by force; The 2nd, by the plastic liner internal diameter, expand plastic liner with swelling pressure punching block in one group of multistage moulding; The 3rd, Boiler Steam is imported the plastic liner inner chamber that seals, make plastic liner expansion back cooling forming.Line plastic-steel tube with the said method manufacturing has following defective: mould pipe and sustain damage because of overdistension makes material; also high temperature is inhomogeneous can to produce a lot of rugged bubbles because of being subjected to mould inside pipe wall; when environment temperature or serviceability temperature change; because steel body and to mould expanding with heat and contract with cold of pipe inconsistent; usually can make and mould the unstable distortion of pipe generation; mould the size before external diameter of pipe can return to expand tube; moulding pipe can float in steel pipe; be easy to generate and get loose; seepage, thus the reliability of installing and using reduced.
The object of the present invention is to provide a kind of manufacture method of line plastic-steel tube, in manufacture process, can make mould guarantee hold excellent, the line plastic-steel tube stable performance of producing, and steel pipe and mould pipe and can keep all the time combining closely.
The objective of the invention is to realize: at first galvanized and welded steel pipe is fixed on the frame of big stroke broaching machine, broaches, remove superfluous things such as the interior weld seam of steel pipe, zinc gold-plating, enlarge pipe diameter with the assembled broaching tool by following technical measures; Select for use its external diameter to place on the frame of big stroke broaching machine then less than above-mentioned pipe diameter 0.5mm to 1.5mm and its length the pipe of moulding greater than steel pipe 50mm to 100mm, at steel pipe with mould between the pipe storage glue device of depositing the heat molten type adhesive is installed, mould pipe with the floating drawbar promotion of broaching machine and pass through storage glue device with the speed of 0.2 to 0.3 meter of per minute, make to mould and push in the steel pipe of broaching after pipe is evenly coated adhesive, simultaneously adhesive fills up steel pipe and moulds annular space between the pipe with moulding pushing of pipe under the effect of its gravity, Deng after moulding pipe and pushing fully, promptly be engraved in the end socket sealing of steel pipe two ends; At last the line plastic-steel tube after the sealing is unloaded the propelling heating furnace under 70 ℃ to 90 ℃ temperature from frame, heated 50 to 70 minutes, solidify viscose glue.
Storage glue device described in the present invention is the funnel-shaped container bucket that can deposit 20 to 30 kilograms of viscose glues, and viscose glue amount of storage in bucket remains the capacity more than 2/3rds; On drum, be provided with location-plate, regulate location-plate to be fit to the assembling of moulding pipe and steel pipe of different size.
Heating furnace described in the present invention is for holding the constant temperature electric heating stove of line plastic-steel tube.
The present invention is in production process, do not damage fully and mould pipe, it is big that steel is moulded the adhesive layer shear strength, flattening test is to diameter three/for the moment, steel pipe with mould pipe and do not separate the line plastic-steel tube stable performance of producing, temperature accommodation is big, the lining inwall is level and smooth, pipeline is produced silt long service life up; Simultaneously in manufacture process, filler and push and mould pipe and once finish has simultaneously improved production efficiency greatly; And required production equipment is simple, also need not to be heated to the above high temperature of 200 degree and makes and mould tube swelling, has reduced production cost greatly; The present invention is very suitable for medium and small production-scale enterprise and uses.
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing.
Fig. 1 is the schematic diagram when moulding pipe and push steel pipe in the present invention.
When producing DN20 type line plastic-steel tube, the internal diameter of choosing galvanized and welded steel pipe is 21.8mm, at first the steel pipe of choosing is fixedly mounted on the frame of big stroke broaching machine, the big stroke broaching machine the applicant who uses has reported patent, the patent No. is 002378183, on the floating drawbar of broaching machine, set up the assembled broaching tool, this assembled broaching tool has also been declared patent by the applicant, the patent No. is 002280965, with the assembled broaching tool steel pipe inwall is broached, remove superfluous things such as the interior weld seam of steel pipe, zinc gold-plating, enlarge pipe diameter, make the steel pipe inner wall smooth; To select external diameter then for use be 21mm and its length places on the frame of big stroke broaching machine greater than the pipe of moulding of above-mentioned steel pipe 80mm, as shown in Figure 1, steel pipe 5 still is installed on the frame 8 of big stroke broaching machine with fixed dam 6, at steel pipe with mould pipe and install the storage glue device 3 of depositing heat molten type epoxy resin adhesive 4 between 2, this storage glue device is for depositing the funnel-shaped container bucket of 25 kilograms of viscose glues, on drum, also be provided with location-plate 7, regulate location-plate to be fit to the assembling of moulding pipe and steel pipe of different size, mould pipe with floating drawbar 1 promotion of broaching machine again and pass through storage glue device with the speed of 0.25 meter of per minute, make to mould and push in the steel pipe of broaching after pipe is evenly coated adhesive, simultaneously adhesive 4 fills up steel pipe and moulds annular space between the pipe with moulding pushing of pipe under the effect of its gravity, therefore the amount of storage of adhesive in drum should remain the capacity more than 2/3rds, otherwise can be because of insufficient pressure, in pushing the process of moulding pipe, suck air, when heating, can form bubble, make and mould the pipe foaming of caving in, Deng after moulding pipe and pushing fully, promptly be engraved in the end socket sealing of steel pipe two ends; At last the line plastic-steel tube after the sealing is unloaded propelling from frame and can hold the constant temperature electric heating stove of line plastic-steel tube, heating is 60 minutes under 75 ℃ temperature, solidifies viscose glue, and the cooling back intercepting of coming out of the stove grows the pipe of moulding of steel pipe, promptly gets the line plastic-steel tube finished product.Above-mentioned used broaching machine is provided with many floating drawbars, can make many line plastic-steel tubes simultaneously.
When producing DN100 type line plastic-steel tube, the internal diameter of choosing galvanized and welded steel pipe is 106mm, chooses the external diameter of moulding pipe and be 105mm and its length greater than steel pipe 90mm, and other is with all identical when producing DN20 type line plastic-steel tube.
When producing DN15 type line plastic-steel tube, the internal diameter of choosing galvanized and welded steel pipe is 16mm, choose the external diameter of moulding pipe and be 15.5mm and its length greater than steel pipe 50mm, floating drawbar promotes to mould pipe and passes through storage glue device with the speed of 0.3 meter of per minute, in the constant temperature electric heating stove, heating is 50 minutes under 70 ℃ temperature, solidifies viscose glue, and other is with all identical when producing DN20 type line plastic-steel tube.
When producing DN150 type line plastic-steel tube, the internal diameter of choosing galvanized and welded steel pipe is 156.5mm, choose the external diameter of moulding pipe and be 155mm and its length greater than steel pipe 100mm, floating drawbar promotes to mould pipe and passes through storage glue device with the speed of 0.2 meter of per minute, in the constant temperature electric heating stove, heating is 70 minutes under 90 ℃ temperature, solidifies viscose glue, and other is with all identical when producing DN20 type line plastic-steel tube.
Claims (3)
1, a kind of manufacture method of line plastic-steel tube is characterized in that: at first galvanized and welded steel pipe is fixed on the frame of big stroke broaching machine, broaches with the assembled broaching tool, remove superfluous things such as the interior weld seam of steel pipe, zinc gold-plating, enlarge pipe diameter; Select for use its external diameter to place on the frame of big stroke broaching machine then less than above-mentioned pipe diameter 0.5mm to 1.5mm and its length the pipe of moulding greater than steel pipe 50mm to 100mm, at steel pipe with mould between the pipe storage glue device of depositing the heat molten type adhesive is installed, mould pipe with the floating drawbar promotion of broaching machine and pass through storage glue device with the speed of 0.2 to 0.3 meter of per minute, make to mould and push in the steel pipe of broaching after pipe is evenly coated adhesive, simultaneously adhesive fills up steel pipe and moulds annular space between the pipe with moulding pushing of pipe under the effect of its gravity, Deng after moulding pipe and pushing fully, promptly be engraved in the end socket sealing of steel pipe two ends; At last the line plastic-steel tube after the sealing is unloaded the propelling heating furnace under 70 ℃ to 90 ℃ temperature from frame, heat and solidified viscose glue in 50 to 70 minutes.
2, the manufacture method of line plastic-steel tube according to claim 1 is characterized in that: described storage glue device is the funnel-shaped container bucket that can deposit 20 to 30 kilograms of adhesives, and adhesive amount of storage in drum remains the capacity more than 2/3rds; On drum, be provided with location-plate.
3, the manufacture method of line plastic-steel tube according to claim 1 is characterized in that: described heating furnace is for holding the constant temperature electric heating stove of line plastic-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107537 CN1129522C (en) | 2001-02-15 | 2001-02-15 | Method for making plastics lined steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107537 CN1129522C (en) | 2001-02-15 | 2001-02-15 | Method for making plastics lined steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1319496A true CN1319496A (en) | 2001-10-31 |
| CN1129522C CN1129522C (en) | 2003-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107537 Expired - Fee Related CN1129522C (en) | 2001-02-15 | 2001-02-15 | Method for making plastics lined steel pipe |
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| Country | Link |
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| CN (1) | CN1129522C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361805C (en) * | 2005-08-04 | 2008-01-16 | 浙江金洲管道科技股份有限公司 | Intermediate frequency heating pipe plastic liner device |
| CN100375790C (en) * | 2006-05-08 | 2008-03-19 | 杭州金舟电炉有限公司 | No-blowdown oil film eliminator |
| CN105619677A (en) * | 2016-03-09 | 2016-06-01 | 刘昌林 | Molding equipment and molding method for steel-plastic composite pipe |
| CN114347458A (en) * | 2021-12-12 | 2022-04-15 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
-
2001
- 2001-02-15 CN CN 01107537 patent/CN1129522C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361805C (en) * | 2005-08-04 | 2008-01-16 | 浙江金洲管道科技股份有限公司 | Intermediate frequency heating pipe plastic liner device |
| CN100375790C (en) * | 2006-05-08 | 2008-03-19 | 杭州金舟电炉有限公司 | No-blowdown oil film eliminator |
| CN105619677A (en) * | 2016-03-09 | 2016-06-01 | 刘昌林 | Molding equipment and molding method for steel-plastic composite pipe |
| CN114347458A (en) * | 2021-12-12 | 2022-04-15 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
| CN114347458B (en) * | 2021-12-12 | 2023-12-12 | 临海伟星新型建材有限公司 | Epoxy resin fixed medium-large caliber lining equipment and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1129522C (en) | 2003-12-03 |
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