CN2650899Y - Composite roller for hot rolling - Google Patents
Composite roller for hot rolling Download PDFInfo
- Publication number
- CN2650899Y CN2650899Y CN 03244951 CN03244951U CN2650899Y CN 2650899 Y CN2650899 Y CN 2650899Y CN 03244951 CN03244951 CN 03244951 CN 03244951 U CN03244951 U CN 03244951U CN 2650899 Y CN2650899 Y CN 2650899Y
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- CN
- China
- Prior art keywords
- working section
- roller
- utility
- model
- circular
- 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 relates to a hot rolling roller for processing various products or shape steel of different dimension in metallurgy enterprise, which is characterized in that: the utility model is divided into a circular working section and a circular non-working section; an internal side of the working section and an external side of the non-working section are assembled together to form a composite roller via interference fit and hot assembly; the ratio between the weight of the working section and the non-working section is about 1:1; the internal side of the non-working section is fixed on a roller axle via a key. Compared with existing art, because only the working section adopts high-grade materials, the utility model can reduce the manufacturing cost by 50 percent and the service life of the roller can be prolonged by 2 times in comparison with existing roller.
Description
Technical field
The utility model relates to the hot-rolling roll that a kind of smelter is processed various kinds or specification shaped steel.
Prior art
The present hot roll that uses, its working portion contacts under HTHP power adverse circumstances with stocking, and common hot die steel (as 5CrMnMo) is wearing and tearing easily, usually can only be rolling 800 tons, just need change roll, bother very much; Whole roll all adopts high-grade material (as H13), and manufacturing cost is more than the twice of common hot die steel, and is very uneconomical.
Summary of the invention
The purpose of this utility model provides a kind of low cost of manufacture, the hot rolling composite roll of long service life.
The purpose of this utility model is to realize like this, the utility model is with the roll separated into two parts: circular working portion and circular inoperative part, the outside of the inboard of working portion and inoperative part is adopted hot charging to join by interference fit and is installed together, form a composite roll, working portion and inoperative part weight ratio approximately are 1: 1, and the inboard of inoperative part is fixed on the roll mandrel by key.
The utility model compared with prior art owing to have only working portion to adopt high-grade material, can make manufacturing cost reduce by 50%, and the existing roll of roll service life as compared prolongs 2 times.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present utility model
The specific embodiment
With reference to Fig. 1, the utility model is provided with circular working portion (1), inoperative part (2), the outside of the inboard of working portion (1) and inoperative part (2) is adopted hot charging to join by interference fit and is installed together, form a composite roll, working portion (1), inoperative part (2) weight ratio approximately are 1: 1.It is the high-grade hot die steel (as 4Cr5MoSiV1) of unification of the motherland standard that working portion is made material, and raw material is easily purchased, and inoperative partly is a common material (as 5CrMnMo), and the inboard of inoperative part (2) is fixed on the roll mandrel (3) by key (4).
Claims (1)
1, a kind of hot rolling composite roll, it is characterized in that: this composite roll separated into two parts: circular working portion and circular inoperative part, the outside of the inboard of working portion and inoperative part is adopted hot charging to join by interference fit and is installed together, form a composite roll, working portion and inoperative part weight ratio approximately are 1: 1, and the inboard of inoperative part is fixed on the roll mandrel by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244951 CN2650899Y (en) | 2003-04-11 | 2003-04-11 | Composite roller for hot rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244951 CN2650899Y (en) | 2003-04-11 | 2003-04-11 | Composite roller for hot rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650899Y true CN2650899Y (en) | 2004-10-27 |
Family
ID=34327014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03244951 Expired - Fee Related CN2650899Y (en) | 2003-04-11 | 2003-04-11 | Composite roller for hot rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650899Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553674A (en) * | 2011-10-24 | 2012-07-11 | 郝新浦 | Manufacturing process of composite double-roll granulation mould |
| CN102847936A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Alloy core bar |
-
2003
- 2003-04-11 CN CN 03244951 patent/CN2650899Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553674A (en) * | 2011-10-24 | 2012-07-11 | 郝新浦 | Manufacturing process of composite double-roll granulation mould |
| CN102553674B (en) * | 2011-10-24 | 2014-03-19 | 郝新浦 | Manufacturing process of composite double-roll granulation mould |
| CN102847936A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Alloy core bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |