CN104759485A - Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface - Google Patents
Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface Download PDFInfo
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- CN104759485A CN104759485A CN201510050150.8A CN201510050150A CN104759485A CN 104759485 A CN104759485 A CN 104759485A CN 201510050150 A CN201510050150 A CN 201510050150A CN 104759485 A CN104759485 A CN 104759485A
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- Prior art keywords
- steel band
- production method
- groove
- band
- reinforcement
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/122—Making tubes or metal hoses with helically arranged seams with welded or soldered seams
Abstract
The invention discloses a production method of single layer spiral bellows with the flat interior surface and reinforcing ribs on the external surface. The production method is characterized in that a band-shaped metal thin steel plate is pressed in a band-shaped steel allowable tensile strength range and yield strength range by a pressing molding device to form a longitudinal reinforcing rib groove along band-shaped steel, the band-shaped steel with the pressed longitudinal reinforcing rib groove is conveyed into a pipe manufacturing device and is rolled, in rolling, the left straight edge of a second ring of a steel band flattens and covers the inner concave surface of the right reinforcing rib groove of a first ring of the steel band, the inner and outer coped joints are subjected to on-line continuous welding so that a single layer metal pipe structure with the flat interior surface and the reinforcing ribs on the external surface is formed, a cutting process is carried out by an on-line cutting device according to desired length, two ends of the cut pipe with the desired length are welded to flanges and then the pipe is subjected to inner and outer anticorrosion treatment to form a metal pipe finished product. The production method can product the single layer spiral bellows with the flat interior surface and the reinforcing ribs on the external surface.
Description
Technical field
The invention belongs to the production method of fluid-transporting tubing, be specifically related to one and produce performances such as reaching anticorrosion, antistatic, fire-retardant, shock resistance under lightweight prerequisite efficiently, ensure the production method of the individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement simultaneously.
Background technology
Along with China's expanding economy, the requirement of low-pressure fluid conveying tubing is being improved constantly, existing market is in great demand, and supply breach is comparatively large, especially needs a kind of pipeline that can reach the performances such as anticorrosion, antistatic, fire-retardant, shock resistance under lightweight prerequisite.The individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement meets national tubing development trend, has fine market prospects.It has the features such as intensity is high, corrosion-resistant, bearing capacity is strong, can be widely used in fields such as gas drainage under suction, delivery of fuel gas, sewage.At present, existing pipe production equipment cannot make its inner-walls of duct level and smooth while guarantee outer wall reinforcement improves the impulsive force of anti-hoop.Li Jia has bravely invented the production method of " a kind of spiral reinforcing rod composite pipe " (patent No.: ZL20081028610.1) for this reason, this production method is plastic-extrusion die head extrusion plastic strip, with plastic board/belt, thin metallic tubd inner wall depression part is filled and led up.Such production method has obvious several shortcoming: one is, adds the weight of quantity of plastics and steel pipe; Two are, the plastic strength of inside and outside wall is low, containing destruction easy to wear during solid particle in conveying fluid; The plastic board/belt filling and leading up steel pipe groove destroys inwall once be worn and just cannot ensure planarization.So inboard wall groove place must fill and lead up with steel band, doing so avoids plastic board/belt and worn and torn by the fine solid particles in fluid.
Summary of the invention
The object of the invention is to the above-mentioned defect for existing in prior art, a kind of production method of individual layer helical bellows of inner surface flat outer surface tool reinforcement is provided.
The production method of the individual layer helical bellows of inner surface flat outer surface tool reinforcement of the present invention, comprises the steps:
(1) by strip metal sheet metal and steel band by sending into tamping plant after processing of rust removing, be pressed into a waling groove along steel band edge within the hot strength allowed at steel band and yield strength scope;
(2) steel band suppressing waling groove is delivered to into tube apparatus curling by certain pitch auger by it, the crowning of waling groove outwardly, second encloses the steel band i.e. left straight edge part of second pitch by the smooth covering of inner concave of the first lap steel band i.e. right hand edge reinforcement groove of first pitch while curling, the left straight edge part of the 3rd pitch is by the smooth covering of inner concave of the right hand edge reinforcement groove of second pitch, the rest may be inferred, and interior, on-line continuous welding is carried out in outer overlapping the slot place, thus form the single-layer metal pipe structure of an inner surface flat outer surface tool reinforcement,
(3) cutting on line equipment according to required length by single-layer metal body cutting, the body two ends welded flange of cutting;
(4) step (3) gained body is carried out the preservative treatment of inner face and/or outside, namely obtain a kind of production tube of individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement.
Concrete, in step (1), described steel band processing of rust removing is by online High Rotation Speed steel brush physics mode rust cleaning, or is eliminated rust by pickling chemical reaction mode; The described waling groove be pressed into along steel band edge is that one-time continuous is compressing, or multistage compressing step by step.
Concrete, in step (4), described preservative treatment carries out having the PE plastic coatings process of anticorrosion fire-resistant antistatic property at body inner face and/or outside or has plastic coating and the layer of paint process of antisepsis.
The invention has the beneficial effects as follows: in the present invention, have employed after steel band longitudinally suppresses reinforcement groove and carry out a constant pitch ground helix-coil again, thus make the reinforcement groove inner concave of the second circle steel band straight edge smooth covering first lap steel band, thin-wall steel tube is made by welding, adopt cutting on line equipment by the technical scheme of the body cutting of certain length welded flange more again, make the ring stiffness of the individual layer helical corrugation metal tube of the inner surface flat outer surface tool reinforcement adopting this method to produce, under the prerequisite that impact strength is all greatly improved, the flatness of inboard wall of tube body also greatly reduces the resistance that gas or fluid pass through, and due to plated scheme, the rub resistance of inwall and intensity is made to have also been obtained very large lifting.The mode of on-line continuous inside and outside wall two-sided welding also improves reliability and the seal of whole body.Overcome in prior art and cannot ensure its large ring stiffness under lightweight prerequisite, and it cannot be made under the smooth prerequisite of inwall better to reduce the shortcoming that resistance increases inner wall strength.The corrugated metal pipe that this kind of method is produced, is applicable to the production of caliber of all sizes.The pipe-forming machine mould of the corresponding caliber of simple commutation is only needed in production process.The size of reinforcement can be changed by the pressure roller shape changing tamping plant.Like this with modular design concept, make each caliber equipment interchange that varies in size simple, also can ensure its installation accuracy simultaneously, greatly reduce cost and change-over period of producing between different tube diameters campaign.
Accompanying drawing explanation
Fig. 1 is the perspective view of the individual layer helical corrugation metal tube body that the inventive method is produced.
Fig. 2 is the structural representation of the production equipment used in the embodiment of the present invention 1.
Fig. 3 is the cross sectional representation of the steel band in the embodiment of the present invention 3 with waling groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1:
See Fig. 1, Fig. 2, the production process of the individual layer helical corrugation metal tube of the inner surface flat outer surface tool reinforcement shown in Fig. 1 is as follows;
(1) strip metal sheet metal (abbreviation steel band) 1 is by sending into the tamping plant 2 shown in Fig. 2 after processing of rust removing, is pressed into a waling groove 21 along steel band 1 edge within the hot strength and yield strength scope of steel band 1 permission;
(2) steel band 1 being suppressed with waling groove 21 is sent to the one-tenth tube apparatus 3 shown in Fig. 2 makes it curling by certain pitch auger, the smooth covering of first lap (first pitch) steel band right hand edge reinforcement inner concave is filled and led up by the second left straight edge part of enclosing (second pitch) steel band while curling, and interior, after on-line continuous welding is carried out in outer overlapping the slot place, surely live through the center of fixed tube central apparatus by its steel pipe, make it not eccentric, the resistance of steel band in curly course of compacting waling groove is reduced after the tractive force through pulling equipment, it is allowed to form the single-layer metal pipe structure of an inner surface flat outer surface tool reinforcement more smoothly,
(3) cutting on line equipment is according to required length cutting single-layer metal body, and cutting becomes the body of certain length to be automatically admitted to trustship equipment by its automatic lower production line, then two ends welded flange;
(4) carry out the preservative treatment of body inner face and/or outside, namely obtain a kind of production tube of individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement.
In above-mentioned steps (1), described steel band processing of rust removing is by online High Rotation Speed steel brush physics mode rust cleaning, or is eliminated rust by pickling chemical reaction mode; The described waling groove be pressed into along steel band edge is that one-time continuous is compressing, or multistage compressing step by step.
In above-mentioned steps (4), described preservative treatment carries out having the PE plastic coatings process of anticorrosion fire-resistant antistatic property at body inner face and/or outside or has plastic coating and the layer of paint process of antisepsis.Coating method is open in patent ZL20081028610.1.
Embodiment 2:
The present embodiment difference from Example 1 is, in above-mentioned steps (1), steel band 1 is by after processing of rust removing, be admitted to independent tamping plant compacting waling groove, namely by after the continuous compressing waling groove 21 of single-stage pressure roller, then the individual layer helical corrugation metal tube that tube apparatus spiral winding makes inner surface flat outer surface tool reinforcement is sent into into.
Embodiment 3:
The present embodiment difference from Example 1 is, in above-mentioned steps (1), steel band 1 is by after processing of rust removing, and the edge's on-line continuous in steel band 1 welds the metal sheet strip 5 that is pressed into Baltimore groove.The metal sheet strip 5 of this Baltimore groove is welded into entirety with strip metal steel plate 1 and is admitted to into tube apparatus, and spiral winding makes the individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement, and wherein, namely the metal sheet strip 5 of Baltimore groove forms spiral reinforcing rod.
Claims (3)
1. a production method for the individual layer helical bellows of inner surface flat outer surface tool reinforcement, is characterized in that comprising the steps:
(1) by strip metal sheet metal and steel band by sending into tamping plant after processing of rust removing, be pressed into a waling groove along steel band edge within the hot strength allowed at steel band and yield strength scope;
(2) steel band suppressing waling groove is delivered to into tube apparatus curling by certain pitch auger by it, the crowning of waling groove outwardly, second encloses the steel band i.e. left straight edge part of second pitch by the smooth covering of inner concave of the first lap steel band i.e. right hand edge reinforcement groove of first pitch while curling, the left straight edge part of the 3rd pitch is by the smooth covering of inner concave of the right hand edge reinforcement groove of second pitch, the rest may be inferred, and interior, on-line continuous welding is carried out in outer overlapping the slot place, thus form the single-layer metal pipe structure of an inner surface flat outer surface tool reinforcement,
(3) cutting on line equipment according to required length by single-layer metal body cutting, the body two ends welded flange of cutting;
(4) step (3) gained body is carried out the preservative treatment of inner face and/or outside, namely obtain a kind of production tube of individual layer helical corrugation metal tube of inner surface flat outer surface tool reinforcement.
2. the production method of the individual layer helical bellows of inner surface flat outer surface tool reinforcement according to claim 1, it is characterized in that: in step (1), described steel band processing of rust removing is by online High Rotation Speed steel brush physics mode rust cleaning, or is eliminated rust by pickling chemical reaction mode; The described waling groove be pressed into along steel band edge is that one-time continuous is compressing, or multistage compressing step by step.
3. the production method of the individual layer helical bellows of inner surface flat outer surface tool reinforcement according to claim 1, it is characterized in that: in step (4), described preservative treatment carries out having the PE plastic coatings process of anticorrosion fire-resistant antistatic property at body inner face and/or outside or has plastic coating and the layer of paint process of antisepsis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050150.8A CN104759485A (en) | 2015-01-31 | 2015-01-31 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050150.8A CN104759485A (en) | 2015-01-31 | 2015-01-31 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
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| CN104759485A true CN104759485A (en) | 2015-07-08 |
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| CN201510050150.8A Pending CN104759485A (en) | 2015-01-31 | 2015-01-31 | Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236872A (en) * | 2021-05-27 | 2021-08-10 | 云南益华管道科技有限公司 | Steel strip welding framework mesh composite spiral corrugated pipe and production device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5768928A (en) * | 1995-10-16 | 1998-06-23 | Carson; Ken | Method of making an hydraulically efficient ribbed pipe |
| KR100935531B1 (en) * | 2009-11-03 | 2010-01-06 | 티오켐 주식회사 | Steel ribbed pipe and manufacturing method thereof |
| CN103851277A (en) * | 2012-11-30 | 2014-06-11 | 上海金纬管道设备制造有限公司 | Production method for steel-plastic warping and soldering pipe |
| CN203823259U (en) * | 2014-04-28 | 2014-09-10 | 淄博安益矿用设备有限公司 | Plastic-coated pressure-resistant pipe with reinforcing ribs |
| CN203892733U (en) * | 2014-05-23 | 2014-10-22 | 李长城 | Helical weld pipe in stainless steel structure |
| CN104266010A (en) * | 2014-09-23 | 2015-01-07 | 湖南双马新材料科技有限公司 | Single-layer spiral corrugated metal pipe with smooth inner surface and with reinforcing rib on the outer surface |
-
2015
- 2015-01-31 CN CN201510050150.8A patent/CN104759485A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5768928A (en) * | 1995-10-16 | 1998-06-23 | Carson; Ken | Method of making an hydraulically efficient ribbed pipe |
| KR100935531B1 (en) * | 2009-11-03 | 2010-01-06 | 티오켐 주식회사 | Steel ribbed pipe and manufacturing method thereof |
| CN103851277A (en) * | 2012-11-30 | 2014-06-11 | 上海金纬管道设备制造有限公司 | Production method for steel-plastic warping and soldering pipe |
| CN203823259U (en) * | 2014-04-28 | 2014-09-10 | 淄博安益矿用设备有限公司 | Plastic-coated pressure-resistant pipe with reinforcing ribs |
| CN203892733U (en) * | 2014-05-23 | 2014-10-22 | 李长城 | Helical weld pipe in stainless steel structure |
| CN104266010A (en) * | 2014-09-23 | 2015-01-07 | 湖南双马新材料科技有限公司 | Single-layer spiral corrugated metal pipe with smooth inner surface and with reinforcing rib on the outer surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236872A (en) * | 2021-05-27 | 2021-08-10 | 云南益华管道科技有限公司 | Steel strip welding framework mesh composite spiral corrugated pipe and production device thereof |
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Application publication date: 20150708 |
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