CN203830406U - Cogging device of duplex-metal metallurgy composite tube - Google Patents
Cogging device of duplex-metal metallurgy composite tube Download PDFInfo
- Publication number
- CN203830406U CN203830406U CN201420255379.6U CN201420255379U CN203830406U CN 203830406 U CN203830406 U CN 203830406U CN 201420255379 U CN201420255379 U CN 201420255379U CN 203830406 U CN203830406 U CN 203830406U
- Authority
- CN
- China
- Prior art keywords
- push rod
- cogging
- tube blank
- pipe
- ejection rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a cogging device of a duplex-metal metallurgy composite tube, and relates to the technical field of duplex-metal composite tubes. The cogging device is used for cogging work of a centrifugal tube blank. The cogging device comprises a rack, a tube blank pushing device, a tube blank rolling roller set, an ejection rod and an ejection rod compression device, the tube blank pushing device, the tube blank rolling roller set, the ejection rod and the ejection rod compression device are fixed on the rack, the distance between the ejection rod compression device and the front end of the ejection rod is at least 500 mm, an ejection head is connected to the ejection rod through a universal joint pin, a metal mat is connected to the front end of the tube blank pushing device, a cylindrical groove is formed in the metal mat, the tube blank rolling roller set comprises two tube blank rolling rollers, and circular space for the tube blank to pass through is arranged between the two tube blank rolling rollers. By means of the cogging device, the duplex-metal centrifugal blank is cogged before cross piercing, the plasticity of metal on the inner layer of the centrifugal blank is improved, the whole performance of the centrifugal blank is improved, the cross piercing requirement is met, and possibly-caused cracks in the cross piercing process can be accordingly prevented.
Description
Technical field
The utility model relates to composite bimetal pipe technical field.
Background technology
Bimetal metallurgy multiple tube is widely used in oil pipeline, and its outer layer metal can bear pressure, and internal layer stainless steel has stronger antiseptic power, thereby obtains people's favor.Conventionally, the manufacture process of bimetal metallurgy multiple tube is: first adopt spun casting to produce pipe, then pipe is carried out to roll piercing.But the pipe that spun casting is produced is as-cast structure, and it does not reach the requirement of roll piercing, when roll piercing, often easily there is the phenomenon of pipe cracking.For this reason, can before roll piercing, introduce cogging operation one, but also there is no at present this kind equipment.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of bimetal metallurgy multiple tube cogging device is provided, first it carry out cogging to bimetal centrifugal base before roll piercing, improved the plasticity of centrifugal blank inner layer metal, improved the overall performance of centrifugal blank, make its requirement that meets roll piercing, thereby prevent the cracking phenomena that may occur in roll piercing process.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of bimetal metallurgy multiple tube cogging device, it comprises frame, on frame, be fixed with pipe thrust unit, billet production roller group, push rod and push rod hold down gag, the mode that is threaded connection push rod afterbody is fixed in frame, push rod is connected with top by cross axle, push rod hold down gag is apart from 500 millimeters of the front ends of push rod, push rod hold down gag can prevent that in cogging process, push rod is crooked, and can open hold down gag during apart from push rod hold down gag 10mm left and right when pipe front end, now push rod partly gos deep into pipe, can not bend, pipe thrust unit front end is connected with metal gasket, this metal gasket has cylindrical groove, this groove is for holding the tail end of pipe, the external diameter of metal gasket is than the large 20mm of pipe external diameter, it plays the effect of protection pipe thrust unit, billet production roller group comprises two billet production rollers, between this two roller, there is the space of passing through for pipe, and pipe is applied to maximum 4% amount of compression.
As preferably, push rod hold down gag adopts the roller of four formed objects, and these four roller uniform ring are around in push rod surrounding, its roll shaft is parallel to push rod, and by hydraulic press, with fashion of extrusion, act on the same section of push rod, in addition, push rod hold down gag also can adopt bench vice.
As preferably, pipe thrust unit is oil cylinder.
As preferably, billet production roller adopts two groups.
As preferably, it is the cylindrical guide section of 100 millimeters that top front end is provided with a length.
As preferably, the material of billet production roller is spheroidal graphite cast-iron.
The beneficial effect that adopts technique scheme to produce is: the utility model carried out cogging work for bimetal metallurgy multiple tube before roll piercing, during cogging, pass through the extruding of billet production roller to pipe, the as-cast structure of pipe is converted into and forges state tissue, thereby the plasticity that improves pipe, prevents pipe contingent cracking phenomena when roll piercing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of billet production roller group of the present utility model.
In figure: 1, pipe thrust unit; 2, metal gasket; 3, pipe; 4, billet production roller group; 5, top; 6, push rod hold down gag; 7, push rod; 8, billet production roller.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, shown in 2, a kind of bimetal metallurgy multiple tube cogging device, it comprises frame, on frame, be fixed with pipe thrust unit 1, billet production roller group 4, push rod 7 and push rod hold down gag 6, push rod 7 is connected with top 5 by cross axle, push rod hold down gag 6 is apart from 500 millimeters of the front ends of push rod 7, pipe thrust unit 1 is oil cylinder, its front end is connected with metal gasket 2, this metal gasket 2 has cylindrical groove, the external diameter of metal gasket 2 is than the large 20mm of pipe 3 external diameter, play protection oil cylinder the effect to pipe 3 guiding, billet production roller group 4 comprises two billet production rollers 8, between this two roller, there is the space of passing through for pipe 3, and pipe 3 is applied to 2% to 4% amount of compression.Coming directly towards 5 materials is the heat treated 2Cr13 of normalizing or H13, and top 5 sizes design according to the endoporus d of bimetal centrifugal base, and its diameter is d～1.2d, and top 5 guiding segment lengths are 100 millimeters, and external diameter is 0.98d.Push rod 7 materials are 4140 or H13, and push rod 7 external diameters are 1.05d～1.1d.
While using the cogging of this device, first push rod 7 use four roller hold down gags 6 are compressed, and it is lubricated on top 5, to smear glass dust, then centrifugal pipe 3 is passed to billet production roller group 4, while oil cylinder promotes forward pipe 3 and advances, and billet production roller 8 rotates pipe 3 is applied to extruding force, until pipes 3 are inserted in top 5, and pipe 3 front ends can be opened hold down gag 6 during apart from push rod hold down gag 60 millimeter, now oil cylinder continues to advance pipe 3 to carry out cogging.
The utility model carried out cogging work for bimetal metallurgy multiple tube before roll piercing, during cogging, pass through the extruding of 8 pairs of pipes of billet production roller, the as-cast structure of pipe is converted into and forges state tissue, thereby the plasticity that improves pipe, prevents pipe contingent cracking phenomena when roll piercing.
Claims (6)
1. a bimetal metallurgy multiple tube cogging device, it is characterized in that: it comprises frame, and be fixed on the pipe thrust unit (1) on described frame, billet production roller group (4), push rod (7) and push rod hold down gag (6), at least 500 millimeters of the front ends of described push rod hold down gag (6) the described push rod of distance (7), described push rod (7) is connected with top (5) by cross axle, described pipe thrust unit (1) front end is connected with metal gasket (2), described metal gasket (2) has cylindrical groove, described billet production roller group (4) comprises two billet production rollers (8), between this two roller, there is the circular space passing through for pipe.
2. bimetal metallurgy multiple tube cogging device according to claim 1, it is characterized in that described push rod hold down gag (6) is the roller of four formed objects, described four roller uniform ring are around in described push rod (7), its roll shaft is parallel to described push rod (7), and by fashion of extrusion, acts on the same section of described push rod (7).
3. bimetal metallurgy multiple tube cogging device according to claim 1, is characterized in that it is the cylindrical guide section of 100 millimeters that described top (5) front end is provided with a length.
4. bimetal metallurgy multiple tube cogging device according to claim 1, is characterized in that described pipe thrust unit (1) is oil cylinder.
5. bimetal metallurgy multiple tube cogging device according to claim 1, is characterized in that described billet production roller group (4) has two groups.
6. bimetal metallurgy multiple tube cogging device according to claim 1, the material that it is characterized in that described billet production roller (8) is spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255379.6U CN203830406U (en) | 2014-05-19 | 2014-05-19 | Cogging device of duplex-metal metallurgy composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255379.6U CN203830406U (en) | 2014-05-19 | 2014-05-19 | Cogging device of duplex-metal metallurgy composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830406U true CN203830406U (en) | 2014-09-17 |
Family
ID=51508297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255379.6U Expired - Fee Related CN203830406U (en) | 2014-05-19 | 2014-05-19 | Cogging device of duplex-metal metallurgy composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203830406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497855A (en) * | 2017-09-20 | 2017-12-22 | 张家港市圣鼎源制管有限公司 | A kind of steel tube punching machine |
| CN111906147A (en) * | 2020-07-02 | 2020-11-10 | 山西钢合力新材料科技有限公司 | Pretreatment method of stainless steel composite pipe |
-
2014
- 2014-05-19 CN CN201420255379.6U patent/CN203830406U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497855A (en) * | 2017-09-20 | 2017-12-22 | 张家港市圣鼎源制管有限公司 | A kind of steel tube punching machine |
| CN111906147A (en) * | 2020-07-02 | 2020-11-10 | 山西钢合力新材料科技有限公司 | Pretreatment method of stainless steel composite pipe |
| CN111906147B (en) * | 2020-07-02 | 2021-12-10 | 山西钢合力新材料科技有限公司 | Pretreatment method of stainless steel composite pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202028680U (en) | Seamless steel tube rounding die | |
| CN103921065A (en) | Manufacturing method of vehicle seamless steel tubes | |
| CN201969761U (en) | Grooving device for thin-wall mental tube | |
| CN103240292A (en) | Production method and device for magnesium alloy thin-wall pipe | |
| CN203830406U (en) | Cogging device of duplex-metal metallurgy composite tube | |
| CN102909231A (en) | Seamless tubing extrusion device | |
| CN103962403B (en) | Heavy caliber pipe squeezes to pull out and subtracts wall method | |
| CN203711487U (en) | Positioning and pushing feeding device for three-roller diameter reducing machine | |
| CN202535999U (en) | Combined casing sleeving rod capable of ensuring quality and improving work efficiency | |
| CN204685741U (en) | A kind of tube straightening device | |
| CN205887874U (en) | Automatic pay -off steel pipe machine of taking lead | |
| CN212551069U (en) | Extrusion tool for metal processing | |
| CN209222900U (en) | A kind of steel pipe processing cold-drawing device facilitating installation | |
| CN202061962U (en) | Pipe mill inlet platform of hot rolled seamless steel tube production line | |
| CN202893856U (en) | Seamless tubular product extrusion device | |
| CN204321003U (en) | Metal tube pipe reduction device | |
| CN203170703U (en) | Mandrel alignment clamping device for tube push bench front table | |
| CN202638885U (en) | Tubular billet carrier roller of solid pipe billet punching machine | |
| CN201768796U (en) | Roller spinning device of steel pipe head maker | |
| CN201755368U (en) | Roller and treadmill using roller | |
| CN106345964A (en) | Cold heading molding process of bicycle axis | |
| CN206296411U (en) | One kind forging and stamping fixing device | |
| CN207119636U (en) | A kind of Steel Tube Special processing cold-drawing device | |
| CN101869926A (en) | Preparation method and mould for titanium sleeve used for titanium-clad copper bar | |
| CN205217627U (en) | Reducing die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20170519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |