CN203900098U - Small-specification slender core rod produced through adopting hot continuous rolling - Google Patents
Small-specification slender core rod produced through adopting hot continuous rolling Download PDFInfo
- Publication number
- CN203900098U CN203900098U CN201420200417.8U CN201420200417U CN203900098U CN 203900098 U CN203900098 U CN 203900098U CN 201420200417 U CN201420200417 U CN 201420200417U CN 203900098 U CN203900098 U CN 203900098U
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- CN
- China
- Prior art keywords
- plug
- active section
- core rod
- continuous rolling
- hot continuous
- 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
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Abstract
The utility model provides a small-specification slender core rod produced through adopting hot continuous rolling. The core rod comprises a core rod operation section head part, a core rod operation section main body and a core rod operation section inner cone, and is characterized in that the core rod operation section head part is positioned at the front end of the core rod operation section main body; the operation section inner cone is positioned at the rear section of the core rod operation section main body. Compared with the prior art, the core rod provided by the utility model has the benefits that the processing time is shorter, the production cost is reduced, and the accuracy of a product is improved.
Description
Technical field
The utility model relates to a kind of elongated plug, especially a kind of elongated plug of small dimension that adopts hot continuous rolling to produce.
Background technology
At present in hot continuous rolling unit, the elongated plug of small dimension below diameter 80mm is a domestic difficult point, and the small-bore boiler tube demand of domestic pot is large, and these seamless pipes are to make by cold-drawn, and cold-drawn processes that time of seamless pipe is always long, cost is high.And the time of hot continuous rolling is short, the cost of one ton of steel pipe is more much lower than cold-drawn, but plug is an one difficult point.More than at present plug is diameter 100mm, original processing scheme is difficult to process below diameter 80mm, particularly diameter 40mm left and right.The utility model has solved a current difficult problem by plug manufacturing experience for many years, for company has brought interests.
Utility model content
One or more during the utility model is intended to address the above problem.
In order to address the above problem, the utility model provides a kind of elongated plug of small dimension that adopts hot continuous rolling to produce, comprise plug active section head, plug active section main body, plug active section inner cone, it is characterized in that: described plug active section head is positioned at plug active section body front end, and described active section inner cone is positioned at the back segment of plug active section main body.
Wherein, described a kind of elongated diameter of mandrel of small dimension that adopts hot continuous rolling to produce is less than 80mm.
Preferably, described plug active section head is provided with cone angle.
Preferably, described plug active section head is provided with head threads.
Preferably, described plug active section inner cone inner side is provided with active section tailing screw flight.
Compared with prior art the beneficial effects of the utility model are: adopt the less elongated plug of hot continuous rolling process production diameter specifications, process time is shorter, has reduced production cost, has improved the precision of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is plug active section head construction schematic diagram of the present utility model.
Fig. 3 is hot continuous rolling fine finishining schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of elongated plug of small dimension that adopts hot continuous rolling to produce of the present utility model, comprise plug active section head 1, plug active section main body 2, plug active section inner cone 3, it is characterized in that: described plug active section head 1 is positioned at plug active section main body 2 front ends, and described active section inner cone 3 is positioned at the back segment of plug active section main body 2.
Wherein, the elongated diameter of mandrel of small dimension that described employing hot continuous rolling is produced is less than 80mm.
Preferably, described plug active section head 1 is provided with cone angle.
Preferably, described plug active section head 1 is provided with head threads 4.
Preferably, described plug active section inner cone 3 inner sides are provided with active section tailing screw flight 5.
A kind of elongated plug of small dimension that adopts hot continuous rolling to produce of the present utility model, has the following advantages: compared with prior art process time shorter, reduced production cost, improved the precision of product.
The concrete process of the elongated plug of small dimension that adopts hot continuous rolling to produce is: (forging) → heat treatment quenching and tempering → roughing → alignment → fine finishining → alignment → polishing → plating → welding of fixed material, different Seiko means and 2 alignments of main employing, adopt 2 alignments to guarantee the linearity of elongated plug, reduce difficulty of processing, guaranteed the quality of product.
Fine finishining process is in detail: 1) saw total length (observing two ends should saw except doing hardness test one end); 2) workpiece presss from both sides 2500 length places through lathe main axis hole claw, and centre frame on head is proofreaied and correct A, circular runout≤0.05, B place; 3) facing light goes out, drill centers, and tapping, counterbit expands inner cone.Headstock portion tapering, guarantees end diameter, chamfering; 4) workpiece tune, repeating step 2; 5) facing is to total length, drill centers, and tapping (controlling axiality), car inner cone, car bevel for welding is to size; 6) polished OD is to given size, and tune polished OD is to size.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (5)
1. the elongated plug of small dimension that adopts hot continuous rolling to produce, comprise plug active section head, plug active section main body, plug active section inner cone, it is characterized in that: described plug active section head is positioned at plug active section body front end, and described active section inner cone is positioned at the back segment of plug active section main body.
2. a kind of elongated plug of small dimension that adopts hot continuous rolling to produce according to claim 1, is characterized in that, the elongated diameter of mandrel of small dimension that described employing hot continuous rolling is produced is less than 80mm.
3. a kind of elongated plug of small dimension that adopts hot continuous rolling to produce according to claim 1, is characterized in that, described plug active section head is provided with cone angle.
4. according to a kind of elongated plug of small dimension that adopts hot continuous rolling to produce described in claim 1,3, it is characterized in that, described plug active section head is provided with head threads.
5. a kind of elongated plug of small dimension that adopts hot continuous rolling to produce according to claim 1, is characterized in that, described plug active section inner cone inner side is provided with active section tailing screw flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200417.8U CN203900098U (en) | 2014-04-23 | 2014-04-23 | Small-specification slender core rod produced through adopting hot continuous rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200417.8U CN203900098U (en) | 2014-04-23 | 2014-04-23 | Small-specification slender core rod produced through adopting hot continuous rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900098U true CN203900098U (en) | 2014-10-29 |
Family
ID=51774389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200417.8U Expired - Fee Related CN203900098U (en) | 2014-04-23 | 2014-04-23 | Small-specification slender core rod produced through adopting hot continuous rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203900098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110382126A (en) * | 2017-05-10 | 2019-10-25 | 钢管冶金公共联合股份公司 | A kind of continuous tube rolling method and the mandrel component for realizing this method |
-
2014
- 2014-04-23 CN CN201420200417.8U patent/CN203900098U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110382126A (en) * | 2017-05-10 | 2019-10-25 | 钢管冶金公共联合股份公司 | A kind of continuous tube rolling method and the mandrel component for realizing this method |
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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: 20141029 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |