CN103639204A - Core rod for cold rolling technology - Google Patents
Core rod for cold rolling technology Download PDFInfo
- Publication number
- CN103639204A CN103639204A CN201310720392.4A CN201310720392A CN103639204A CN 103639204 A CN103639204 A CN 103639204A CN 201310720392 A CN201310720392 A CN 201310720392A CN 103639204 A CN103639204 A CN 103639204A
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- China
- Prior art keywords
- barred body
- plug
- core rod
- cold
- delivery port
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Abstract
The invention discloses a core rod for a cold rolling technology, which comprises a rod body and a clamping part, wherein a channel used for transporting lubricating liquid is arranged in the rod body; an inclined tabletop is arranged at a connecting part between the rod body and the clamping part, and is provided with an end water outlet; and the end water outlet is communicated with the channel. The core rod can effectively improve protection to the internal surface of a steel pipe; scratch of the core rod to the internal surface of the steel pipe is avoided; and the service life of the core rod can be prolonged.
Description
Technical field
the present invention relates to a kind of equipment of stainless steel tube cold-rolling process, the plug in arranging in particular.
Background technology
stainless steel tube cold-rolling mill process is completed by roll, plug now, and roll is responsible for pushing outer surface assurance outer surface size and the outer surface quality of pipe, and plug is responsible for guaranteeing ips size and inner surface quality.When rolling, on equipment, shower nozzle is installed, lubricating oil is sprayed onto between roll and pipe, got the lubrication and cooling effect in cold-rolled process.But because inner surface pipe is very long, lubricating oil cannot enter, so tend to cause the problems such as inner surface quality is bad, the plug life-span is short in production process.
Summary of the invention
for what solve the problems of the technologies described above, the invention provides a kind of plug that can eject lubricant.
technical scheme of the present invention is: the plug that a kind of cold-rolling process is used, comprises barred body and clamping part, described barred body inside be provided for the circulating passage of lubricating fluid; The junction of described barred body and clamping part arranges inclined table, and described inclined table arranges end delivery port, described end delivery port and channel connection.
end delivery port is set on inclined table; like this with plug during to stainless steel tube hole enlargement; end delivery port is the surface sprinkling lubricant to steel pipe first; inner surface that can scratch steel pipe when barred body is contacted with inner surface; guaranteed the quality of product; also protected barred body, increased the service life of barred body simultaneously.
as preferably, at least plural body protection outlet is set, described body protection outlet and channel connection on described barred body.Because the surface of barred body will interact with the inner surface of steel pipe always, so easily wearing and tearing.The lubricating fluid flowing out in body protection outlet can be compressed between barred body and steel tube surface always, plays cooling, lubrication.
as preferably, described body protection outlet is arranged at barred body upper and lower part, and shifts to install.The lubricating fluid flowing out like this can more fully cover the surface of barred body.
as preferably, between adjacent body protection outlet, distance is 30cm ~ 40cm.
as preferably, the angle of inclination of the end delivery port of described inclined table is between 50 ° ~ 80 °.
beneficial effect of the present invention:
the lubricating fluid that the present invention sprays by end delivery port is first lubricated to steel tube surface, and spray out unnecessary lubricating fluid, can thereby remain in clamping part position because of the former of inclined table, when having clamping device clamping clamping part, these residual lubricants also can lubricate the surface of clamping device, prevent the inner surface of clamping device scratch steel pipe.And body protection outlet can well be protected the outer surface of barred body and the inner surface of steel pipe.
this plug can effectively improve the protection to steel pipe internal-surface, prevents the scratch of plug to steel pipe internal-surface, and the service life that can improve plug.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention;
fig. 2 is working state schematic representation of the present invention.
in figure, 1-barred body; 2-end delivery port; 21-body protection outlet; 3-inclined table; 4-passage; 5-clamping part; 6-roll; 7-steel pipe, 8-clamping device.
The specific embodiment
below in conjunction with accompanying drawing, with embodiment, the present invention is further described.
shown in Fig. 1, the plug that a kind of cold-rolling process is used, comprises barred body 1 and clamping part 5, and described barred body 1 inside is provided for carrying the passage 4 of lubricating fluid; Described barred body 1 arranges inclined table 3 with the junction of clamping part 5, and described inclined table 3 arranges end delivery port 2, and described end delivery port 2 is communicated with passage 4.The top of described barred body 1 arranges the body protection outlet 21 of four, and described body protection outlet 21 is communicated with passage 4.Four body protection outlets 21 are also offered in the bottom of barred body 1, but in the location dislocation setting on top.Can guarantee that like this lubricating fluid of ejection can more fully cover the surface of whole barred body.Between adjacent body protection outlet 21, distance is 30cm ~ 40cm, is preferably 40cm.If too near, the lubricating fluid of outflow is too many, can increase the pressure in pipe, mobile steel pipe is become and more require great effort.Otherwise will make very little lubricated liquid measure inadequate, can not well all cover the surface of barred body.
as shown in Figure 2, the angle of inclination of the end delivery port 2 of described inclined table 3, between 50 ° ~ 80 °, is preferable over 60 °.Angle is too little, will make end delivery port 2 lubricating fluid out be sprayed onto distant place, and does not just have sandblast to arrive near the steel pipe internal-surface of barred body 1.If instead angle is too large, will allows barred body 1 contact the broken end producing with steel pipe and easily enter into end delivery port, thereby block end delivery port 2.
Claims (5)
1. the plug that cold-rolling process is used, comprises barred body (1) and clamping part (5), it is characterized in that: described barred body (1) inside is provided for carrying the passage (4) of lubricating fluid; Described barred body (1) arranges inclined table (3) with the junction of clamping part (5), and described inclined table (3) arranges end delivery port (2), and described end delivery port (2) is communicated with passage (4).
2. the plug that a kind of cold-rolling process according to claim 1 is used, is characterized in that: the upper at least plural body protection outlet of setting of described barred body (1) (21), described body protection outlet (21) is communicated with passage (4).
3. the plug that a kind of cold-rolling process according to claim 2 is used, is characterized in that: described body protection outlet (21) is arranged at barred body (1) upper and lower part, and shifts to install.
4. the plug that a kind of cold-rolling process according to claim 3 is used, is characterized in that: between adjacent body protection outlet (21), distance is 30cm ~ 40cm.
5. the plug of using according to a kind of cold-rolling process described in claim 1 or 4, is characterized in that: the angle of inclination of the end delivery port (2) of described inclined table (3) is between 50 ° ~ 80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720392.4A CN103639204A (en) | 2013-12-24 | 2013-12-24 | Core rod for cold rolling technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720392.4A CN103639204A (en) | 2013-12-24 | 2013-12-24 | Core rod for cold rolling technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103639204A true CN103639204A (en) | 2014-03-19 |
Family
ID=50244562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310720392.4A Pending CN103639204A (en) | 2013-12-24 | 2013-12-24 | Core rod for cold rolling technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639204A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151106A (en) * | 1980-04-23 | 1981-11-24 | Nippon Kokan Kk <Nkk> | Descaling method for inner surface of pipe during hot rolling pass for seamless steel pipe |
| JPH05185131A (en) * | 1992-01-10 | 1993-07-27 | Sumitomo Metal Ind Ltd | Production of seamless stainless steel pipe |
| CN101198420A (en) * | 2005-06-14 | 2008-06-11 | 住友金属工业株式会社 | Boring machine, plug, and method of manufacturing seamless steel tube |
| CN202516843U (en) * | 2012-03-29 | 2012-11-07 | 金川集团股份有限公司 | Connecting device between core bar and core rod of two-roller Pilger rolling mill |
| CN203140433U (en) * | 2012-11-20 | 2013-08-21 | 青岛宏泰铜业有限公司 | Rolling device and rolled tube core bar thereof |
| CN203711473U (en) * | 2013-12-24 | 2014-07-16 | 湖州华祥不锈钢管有限公司 | Mandrel for cold rolling process |
-
2013
- 2013-12-24 CN CN201310720392.4A patent/CN103639204A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151106A (en) * | 1980-04-23 | 1981-11-24 | Nippon Kokan Kk <Nkk> | Descaling method for inner surface of pipe during hot rolling pass for seamless steel pipe |
| JPH05185131A (en) * | 1992-01-10 | 1993-07-27 | Sumitomo Metal Ind Ltd | Production of seamless stainless steel pipe |
| CN101198420A (en) * | 2005-06-14 | 2008-06-11 | 住友金属工业株式会社 | Boring machine, plug, and method of manufacturing seamless steel tube |
| CN202516843U (en) * | 2012-03-29 | 2012-11-07 | 金川集团股份有限公司 | Connecting device between core bar and core rod of two-roller Pilger rolling mill |
| CN203140433U (en) * | 2012-11-20 | 2013-08-21 | 青岛宏泰铜业有限公司 | Rolling device and rolled tube core bar thereof |
| CN203711473U (en) * | 2013-12-24 | 2014-07-16 | 湖州华祥不锈钢管有限公司 | Mandrel for cold rolling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |