CN102581059A - Hydrostatic pressure expanding composite technology for bimetal composite pipe - Google Patents
Hydrostatic pressure expanding composite technology for bimetal composite pipe Download PDFInfo
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- CN102581059A CN102581059A CN2012100323210A CN201210032321A CN102581059A CN 102581059 A CN102581059 A CN 102581059A CN 2012100323210 A CN2012100323210 A CN 2012100323210A CN 201210032321 A CN201210032321 A CN 201210032321A CN 102581059 A CN102581059 A CN 102581059A
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- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 30
- 238000005516 engineering process Methods 0.000 title abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 28
- 239000000956 alloy Substances 0.000 claims abstract description 28
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- 238000000034 method Methods 0.000 claims description 37
- 239000001997 corrosion-resisting alloy Substances 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 27
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The invention discloses a hydrostatic pressure expanding composite technology for a bimetal composite pipe. On the theoretical basis of the metal material elastoplastic theory, a residual contact stress calculation system between two layers of pipelines is finally obtained after hydraulic expanding force and expanding compounding technology are built for guiding to select the hydraulic expanding force and evaluate the compounding technology. The invention aims to provide the hydrostatic pressure expanding composite technology for the bimetal composite pipe, which is used for the production technology of the bimetal composite pipe with big caliber, long pipeline and the thick corrosion resistant alloy layer of which the maximum thickness can be 8.00mm.
Description
Technical field
The present invention relates to the metal tube combination process, be specifically related to a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process.
Background technology
Liner corrosion resisting alloy composite steel tube belongs to a kind of of composite bimetal pipe; Research and development aspect composite bimetal pipe abroad and application are early; The early production manufacturing process is main, and is widely applied to fields such as corrosive medium fluid line, atomic energy, oil-refining chemical, Seawater Treatment with casting, metallurgical complex method such as rolling.Yet; The high product price that this complex method is brought but lets a lot of users hang back; Especially the meaning that the application of low-pressure fluid pipeline and some low-alloy composite steel tubes is not had basically popularization; To since the heat treatment condition of delivery of two kinds of metal materials being determined of product operating characteristic not simultaneously, the complex method of metallurgical binding can't meet the demands equally; Last century the seventies, China begins to develop the composite steel tube of mechanical bond characteristic.Machinery drawing formula (also crying cold-drawn) composite bimetal pipe appears at late nineteen eighties, and the nineties begins to research and develop screw extrusion, warm roller spinning method; This type complex method with its invest little instant effect, advantage cheap for manufacturing cost obtains using comparatively widely in civilian plumbing field; Yet, in the production of reality and use, exist following shortcoming:
One, easy phase mutual friction because of two kinds of metals damages the corrosion resistant alloy inner surface.
Two, adhere to dissimilar metal easily on the corrosion resistant alloy surface.
Three, incompatibility large diameter pipeline composite demand;
Four, when the corrosion resisting alloy layer requirement of liner is thicker, adopt said method to be difficult to obtain enough hole enlargement power, can't fit tightly between the two-layer pipe.
Get into after 21st century, along with market improving constantly for bimetallic composite steel tube quality requirements
People begin novel manufacturing process such as development blast, detonation, and this type complex method has remedied the shortcoming of conventional method, yet but in the production process of reality, exposed following problem:
One, is used for the slender pipeline compound tense,, is prone to produce defectives such as distortion, bulge because the process of internal lining pipe deformation is too fierce;
Two, the bond strength between technology complicacy, calculating accurately and key-course and the layer;
Three, no matter be that blast or detonation are sent out compound, because the time of deformation is too short, in case leakage point appears in internal lining pipe; Can't in time stop compound process, finally cause whole pipeline to scrap the increase of manufacturing cost; Must cause the product price higher, be unfavorable for the popularization and the use of product.
Summary of the invention
The object of the invention provides a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process, the composite bimetal pipe production technology that is used to produce heavy caliber, long pipeline and thick corrosion-resistant alloy layer (the thickest 8.00mm of reaching).
The present invention realizes through following technical scheme:
A kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process; Theoretical foundation is for to mould theory according to the bullet of metal material; Set up the remaining Calculation of Contact Stress system between the final two-layer pipe that obtains in the compound back of hydraulic pressure hole enlargement power and hole enlargement; Be used in reference to the selection of drain companding footpath power and the evaluation of combination process, it is characterized in that: said hydraulic pressure hole enlargement combination process step is following:
One, according to the outside dimension and the wall thickness dimension of matrix steel tube, by formula calculate the outside dimension of liner corrosion resistant alloy pipe, and according to result of calculation processing liner corrosion resisting alloy pipe;
Two, with the liner corrosion resisting alloy pipe and the matrix steel tube that calculate in the step 1, carry out retest of materials, outward appearance and dimension control according to the relevant industries standard-required;
Three, the matrix steel tube that is up to the standards, liner corrosion resisting alloy pipe assemble preceding rust cleaning, degrease;
Four, after matrix steel tube, the assembling of liner corrosion resisting alloy pipe were accomplished, liner corrosion resisting alloy pipe two ends adopted hemispherical head to dock, the spot welding of going forward side by side location;
Five, adopt the argon arc welding of tungsten level that hemispherical head and liner corrosion resisting alloy pipe are carried out the girth joint welding, carry out gas shield in the welding process simultaneously;
Six,, calculate the maximum permissible stress of matrix steel tube by formula according to wall thickness, diameter, the material of matrix steel tube;
The maximum permissible stress of the matrix steel tube that seven, calculates according to step 6 is confirmed the pressure that the hydrostatic pressing hole enlargement is compound;
Eight, the compound pressure of confirming according to step 7 of hydrostatic pressing hole enlargement, the water injection valve that is provided with through the hemispherical head hydraulic pressure of in liner corrosion resistant alloy pipe, annotating, the speed that control is simultaneously boosted after pressure reaches setting value, and is done pressurize and is handled;
Nine, the hydraulic pressure in the liner corrosion resistant alloy pipe carries out pressure release through the air bleeding valve that hemispherical head is provided with, and pressure release makes the two ends hemispherical head separate with liner corrosion resistant alloy pipe through cutting after accomplishing;
Ten, compound pipe end carries out soldering and sealing, processing cut, and composite bimetal pipe is composited.
The further Technological improvement plan of the present invention is:
Liner corrosion resistant alloy external diameter of pipe size calculation formula is in the said step 1: D2=(D1-2t) * 0.985, and wherein D1 representes the matrix steel tube external diameter, and t representes the wall thickness of matrix steel tube, and D2 representes the external diameter of liner corrosion resisting alloy pipe; Retest of materials comprises chemical composition analysis, mechanical property test, Huey test, Non-Destructive Testing in the said step 2; Industry standard in the said step 2 is SY/T6623-2005; For guaranteeing the intensity of weld seam, the material of hemispherical head should be consistent with the material of liner corrosion resisting alloy pipe in the said step 4, and the wall thickness of hemispherical head should be greater than the twice of liner corrosion resisting alloy thickness of pipe wall; The computing formula of the maximum permissible stress of matrix steel tube is in the said step 6: and P2=2* (the * E*T/D-t of δ/f), wherein P2 representes allowable pressure in the matrix steel tube pipe, δ representes yield strength; E representes quality coefficient; F representes safety coefficient, and D representes the matrix steel tube external diameter, and t representes the matrix steel tube wall thickness; For guaranteeing the bond strength of composite bimetal pipe, the compound pressure of hydrostatic pressing hole enlargement should reach or near 90% of matrix steel tube maximum permissible stress in the said step 7; The rate of rise in the said step 8 generally is controlled at less than 0.1Mpa/min, and the dwell time was not less than ten minutes; Said quality coefficient E span is 0.8～1.0, and safety coefficient F value is 1.5.
The present invention compared with prior art has following obvious advantage:
One, adopts hydrostatic pressing hole enlargement mode composite bimetal pipe safety, gentleness, can not damage the surface of liner corrosion resisting alloy pipe layer;
Two, adopt the mode of hydrostatic pressing hole enlargement; Hole enlargement pressure is even, controlled in recombination process; The isostasy that can guarantee to bear Anywhere body inside is as one; Thereby can calculate hole enlargement pressure as required and obtain desired binding intensity, because two ends hoop welded seal end socket does not receive the restriction of bore, therefore producing the heavy caliber composite bimetal pipe also no longer is a difficult problem;
Three, adopting the process of hydrostatic pressing expanding technology composite bimetal pipe also is the process of the water pressure test, and the composite bimetal pipe quality that therefore adopts the hydrostatic pressing expanding technology to produce is more guaranteed.
Description of drawings
Fig. 1 is inner and outer pipes compound tense stress of the present invention a--schematic illustration of strain;
Fig. 2 is a process chart of the present invention;
Fig. 3 is the present device structural scheme of mechanism.
The specific embodiment
The theoretical foundation of a kind of composite bimetal pipe hydrostatic pressing of the present invention hole enlargement combination process:
Bullet according to metal material is moulded theory; Set up the remaining Calculation of Contact Stress system between the final two-layer pipe that obtains in the compound back of hydraulic pressure hole enlargement power and hole enlargement; Be used in reference to the selection of drain companding footpath power and the evaluation of combination process; As shown in Figure 1, be example with liner corrosion resistant alloy pipe 316L stainless steel material, matrix steel tube is the X52 seamless steel pipe; Because the existence of inner and outer pipes fit-up gap, the load-deformation curve starting point of matrix steel tube moves to right to the A point, and liner corrosion resistant alloy pipe takes the lead in being out of shape under the effect of pressure; When deflection reaches ε 0; Liner corrosion resistant alloy pipe outer wall begins to contact with the matrix steel tube inwall, and causes the outer tube wall distortion then, in deformation process backward; Liner corrosion resistant alloy pipe and matrix steel tube are out of shape simultaneously, and distortion finishes when the deflection of liner corrosion resistant alloy pipe, matrix steel tube reaches ε x; At this moment, matrix steel tube still remains on (deflection is ε x-ε 0) within the elastically-deformable scope, and the distortion of liner corrosion resistant alloy pipe generation perfect plasticity; After discharge degree; Because the internal stress of matrix steel tube is much larger than the internal stress (being δ C＞δ E) of liner corrosion resistant alloy pipe; And the elastic recovery amount of liner corrosion resistant alloy pipe is almost nil; Form expanding force between two pipes, and residual contact pressure, final liner corrosion resistant alloy pipe, matrix steel tube are in the compound state of interference.
The embodiment of the invention is following:
One, according to the outside dimension and the wall thickness dimension of matrix steel tube 1; By formula D2=(D1-2t) * 0.985 calculates the outside dimension of liner corrosion resistant alloy pipe 2; And according to result of calculation processing liner corrosion resisting alloy pipe 2; Above-mentioned formula D1 representes matrix steel tube 1 external diameter, and t representes the wall thickness of matrix steel tube 1, and D2 representes the external diameter of liner corrosion resisting alloy pipe 2;
Two, with liner corrosion resisting alloy pipe that calculates in the step 12 and matrix steel tube 1; According to the phase industry standard is that SY/T6623-2005 requires to carry out retest of materials, outward appearance and dimension control, and wherein retest of materials comprises that reinspection comprises chemical composition analysis, mechanical property test, Huey test, Non-Destructive Testing;
Three, the matrix steel tube 1 that is up to the standards, liner corrosion resisting alloy pipe 2 assemble preceding rust cleaning, degrease;
Four, after matrix steel tube 1,2 assemblings of liner corrosion resisting alloy pipe are accomplished; Liner corrosion resisting alloy pipe 1 two ends adopt hemispherical head 3 to dock; The spot welding of going forward side by side location; For guaranteeing the intensity of weld seam, the material of hemispherical head 3 should be consistent with the material of liner corrosion resisting alloy pipe 2, and the wall thickness of hemispherical head 3 should be greater than the twice of liner corrosion resisting alloy pipe 2 wall thickness;
Five, adopt the argon arc welding of tungsten level that hemispherical head 3 and liner corrosion resisting alloy pipe 2 are carried out the girth joint welding, carry out gas shield in the welding process simultaneously;
Six, according to wall thickness, diameter, the material of matrix steel tube 1, (δ/f) * E*T/D-t calculates the maximum permissible stress of matrix steel tube 1, and above-mentioned formula P2 representes allowable pressure in matrix steel tube 1 pipe by formula P2=2*; δ representes yield strength, and E representes quality coefficient, and F representes safety coefficient; D representes matrix steel tube 1 external diameter; T representes matrix steel tube 1 wall thickness, and quality coefficient E span is 0.8～1.0, and safety coefficient F value is 1.5;
The maximum permissible stress of the matrix steel tube 1 that seven, calculates according to step 6; Confirm the pressure that the hydrostatic pressing hole enlargement is compound; Be to guarantee the bond strength of composite bimetal pipe, the compound pressure of hydrostatic pressing hole enlargement should reach or near 90% of matrix steel tube 1 maximum permissible stress;
Eight, the compound pressure of confirming according to step 7 of hydrostatic pressing hole enlargement; The water injection valve 5 that numerical control hydraulic press 6 is provided with through hemispherical head 3 hydraulic pressure of in liner corrosion resistant alloy pipe 2, annotating; The speed that control is simultaneously boosted after pressure reaches setting value, and is done pressurize and is handled; The rate of rise generally is controlled at less than 0.1Mpa/min, and the dwell time was not less than ten minutes;
Nine, the hydraulic pressure in the liner corrosion resistant alloy pipe 2 carries out pressure release through the air bleeding valve 4 that hemispherical head 3 is provided with, and pressure release makes two ends hemispherical head 3 separate with liner corrosion resistant alloy pipe 2 through cutting after accomplishing;
Ten, compound pipe end carries out soldering and sealing, processing cut, and composite bimetal pipe is composited.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (9)
1. composite bimetal pipe hydrostatic pressing hole enlargement combination process; Theoretical foundation is for to mould theory according to the bullet of metal material; Set up the remaining Calculation of Contact Stress system between the final two-layer pipe that obtains in the compound back of hydraulic pressure hole enlargement power and hole enlargement; Be used in reference to the selection of drain companding footpath power and the evaluation of combination process, it is characterized in that: said hydraulic pressure hole enlargement combination process step is following:
One, according to the outside dimension and the wall thickness dimension of matrix steel tube, by formula calculate the outside dimension of liner corrosion resistant alloy pipe, and according to result of calculation processing liner corrosion resisting alloy pipe;
Two, with the liner corrosion resisting alloy pipe and the matrix steel tube that calculate in the step 1, carry out retest of materials, outward appearance and dimension control according to the relevant industries standard-required;
Three, the matrix steel tube that is up to the standards, liner corrosion resisting alloy pipe assemble preceding rust cleaning, degrease;
Four, after matrix steel tube, the assembling of liner corrosion resisting alloy pipe were accomplished, liner corrosion resisting alloy pipe two ends adopted hemispherical head to dock, the spot welding of going forward side by side location;
Five, adopt the argon arc welding of tungsten level that hemispherical head and liner corrosion resisting alloy pipe are carried out the girth joint welding, carry out argon shield in the welding process simultaneously;
Six,, calculate the maximum permissible stress of matrix steel tube by formula according to wall thickness, diameter, the material of matrix steel tube;
The maximum permissible stress of the matrix steel tube that seven, calculates according to step 6 is confirmed the pressure that the hydrostatic pressing hole enlargement is compound;
Eight, the compound pressure of confirming according to step 7 of hydrostatic pressing hole enlargement, the water injection valve that is provided with through the hemispherical head hydraulic pressure of in liner corrosion resistant alloy pipe, annotating, the speed that control is simultaneously boosted after pressure reaches setting value, and is done pressurize and is handled;
Nine, the hydraulic pressure in the liner corrosion resistant alloy pipe carries out pressure release through the air bleeding valve that hemispherical head is provided with, and pressure release makes the two ends hemispherical head separate with liner corrosion resistant alloy pipe through cutting after accomplishing;
Ten, compound pipe end carries out soldering and sealing, processing cut, and composite bimetal pipe is composited.
2. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1; It is characterized in that: liner corrosion resistant alloy external diameter of pipe size calculation formula is in the said step 1: D2=(D1-2t) * 0.985; Wherein D1 representes the matrix steel tube external diameter; T representes the wall thickness of matrix steel tube, and D2 representes the external diameter of liner corrosion resisting alloy pipe.
3. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1, it is characterized in that: retest of materials comprises chemical composition analysis, mechanical property test, Huey test, Non-Destructive Testing in the said step 2.
4. according to claim 1 or 3 described a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process, it is characterized in that: the industry standard in the said step 2 is SY/T6623-2005.
5. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1; It is characterized in that: be the intensity that guarantees weld seam in the said step 4; The material of hemispherical head should be consistent with the material of liner corrosion resisting alloy pipe, and the wall thickness of hemispherical head should be greater than the twice of liner corrosion resisting alloy thickness of pipe wall.
6. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1; It is characterized in that: the computing formula of the maximum permissible stress of matrix steel tube is in the said step 6: and P2=2* (the * E*T/D-t of δ/f), wherein P2 representes allowable pressure in the matrix steel tube pipe, δ representes yield strength; E representes quality coefficient; F representes safety coefficient, and D representes the matrix steel tube external diameter, and t representes the matrix steel tube wall thickness.
7. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1; It is characterized in that: for guaranteeing the bond strength of composite bimetal pipe, the compound pressure of hydrostatic pressing hole enlargement should reach or near 90% of matrix steel tube maximum permissible stress in the said step 7.
8. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 1, it is characterized in that: the rate of rise in the said step 8 generally is controlled at less than 0.1Mpa/min, and the dwell time was not less than ten minutes.
9. a kind of composite bimetal pipe hydrostatic pressing hole enlargement combination process according to claim 5, it is characterized in that: said quality coefficient E span is 0.8～1.0, and safety coefficient F value is 1.5.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091469A (en) * | 2012-12-28 | 2013-05-08 | 武昌船舶重工有限责任公司 | Method for calculating allowable stress of plastic metal casting materials |
| CN103574220A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Hydraulic pressure expansion liner corrosion resistant alloy composite tube and manufacturing method thereof |
| CN103574221A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Machinery expanding lining anticorrosion alloy composite tube and manufacturing method thereof |
| CN104475599A (en) * | 2014-12-03 | 2015-04-01 | 中冶辽宁德龙钢管有限公司 | Expanding method and device for spiral steel pipe end |
| CN104879577A (en) * | 2015-06-11 | 2015-09-02 | 马鞍山市圣火科技有限公司 | Manufacturing method of composite tube |
| CN107289814A (en) * | 2017-07-19 | 2017-10-24 | 中国人民解放军军械工程学院 | Movable hydraulic Self tightening device and tightening method outside a kind of firearms barrel |
| CN107289813A (en) * | 2017-07-19 | 2017-10-24 | 中国人民解放军军械工程学院 | A kind of outer Self tightening device of firearms barrel hydraulic pressure and outer tightening method |
| CN107363179A (en) * | 2017-08-07 | 2017-11-21 | 海隆管道工程技术服务有限公司 | A kind of manufacture method of lined composite steel tube |
| CN107413965A (en) * | 2017-08-07 | 2017-12-01 | 海隆管道工程技术服务有限公司 | A kind of full body chucking device |
| CN110181228A (en) * | 2019-05-17 | 2019-08-30 | 东莞材料基因高等理工研究院 | A kind of manufacturing process of bimetallic mechanical composite-curve |
| EP3640510A4 (en) * | 2017-06-16 | 2021-01-13 | Bang, Manhyuk | Composite pipe comprising stainless steel pipe, steel pipe, and anti-corrosion layer, and manufacturing method therefor |
| CN113332058A (en) * | 2021-06-01 | 2021-09-03 | 广州市利捷医疗设备科技有限公司 | Multifunctional electric sickbed |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651163A (en) * | 2005-02-04 | 2005-08-10 | 华东理工大学 | Hydraulic shaping device of stainless steel lined compound pipe and its shaping method |
| CN101701648A (en) * | 2009-11-03 | 2010-05-05 | 三门峡化工机械有限公司 | Method for machining hydraulic composite pipe |
-
2012
- 2012-02-14 CN CN201210032321.0A patent/CN102581059B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651163A (en) * | 2005-02-04 | 2005-08-10 | 华东理工大学 | Hydraulic shaping device of stainless steel lined compound pipe and its shaping method |
| CN101701648A (en) * | 2009-11-03 | 2010-05-05 | 三门峡化工机械有限公司 | Method for machining hydraulic composite pipe |
Non-Patent Citations (3)
| Title |
|---|
| 李明亮: "多层复合管液压胀接原理与工艺研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
| 王学生等: "液压胀合复合管的应力应变分析", 《郑州工业大学学报》 * |
| 王学生等: "自紧密封不锈钢衬里复合管液压胀合研究", 《机械工程学报》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091469A (en) * | 2012-12-28 | 2013-05-08 | 武昌船舶重工有限责任公司 | Method for calculating allowable stress of plastic metal casting materials |
| CN103574220A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Hydraulic pressure expansion liner corrosion resistant alloy composite tube and manufacturing method thereof |
| CN103574221A (en) * | 2013-08-31 | 2014-02-12 | 宝鸡石油钢管有限责任公司 | Machinery expanding lining anticorrosion alloy composite tube and manufacturing method thereof |
| CN104475599A (en) * | 2014-12-03 | 2015-04-01 | 中冶辽宁德龙钢管有限公司 | Expanding method and device for spiral steel pipe end |
| CN104475599B (en) * | 2014-12-03 | 2016-08-24 | 中冶辽宁德龙钢管有限公司 | A kind of spiral steel pipe pipe end diameter enlarging method and expander |
| CN104879577A (en) * | 2015-06-11 | 2015-09-02 | 马鞍山市圣火科技有限公司 | Manufacturing method of composite tube |
| EP3640510A4 (en) * | 2017-06-16 | 2021-01-13 | Bang, Manhyuk | Composite pipe comprising stainless steel pipe, steel pipe, and anti-corrosion layer, and manufacturing method therefor |
| CN107289814A (en) * | 2017-07-19 | 2017-10-24 | 中国人民解放军军械工程学院 | Movable hydraulic Self tightening device and tightening method outside a kind of firearms barrel |
| CN107289813A (en) * | 2017-07-19 | 2017-10-24 | 中国人民解放军军械工程学院 | A kind of outer Self tightening device of firearms barrel hydraulic pressure and outer tightening method |
| CN107363179A (en) * | 2017-08-07 | 2017-11-21 | 海隆管道工程技术服务有限公司 | A kind of manufacture method of lined composite steel tube |
| CN107413965A (en) * | 2017-08-07 | 2017-12-01 | 海隆管道工程技术服务有限公司 | A kind of full body chucking device |
| CN110181228A (en) * | 2019-05-17 | 2019-08-30 | 东莞材料基因高等理工研究院 | A kind of manufacturing process of bimetallic mechanical composite-curve |
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| CN102581059B (en) | 2014-02-26 |
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