CN101148074A - Roller and its forming technology - Google Patents
Roller and its forming technology Download PDFInfo
- Publication number
- CN101148074A CN101148074A CNA2007102024937A CN200710202493A CN101148074A CN 101148074 A CN101148074 A CN 101148074A CN A2007102024937 A CNA2007102024937 A CN A2007102024937A CN 200710202493 A CN200710202493 A CN 200710202493A CN 101148074 A CN101148074 A CN 101148074A
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- Prior art keywords
- roller
- roller shell
- iron layer
- layer
- roll
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Abstract
The mill roller includes one roller ring and two axle heads on two ends oft roller ring. The roller ring includes one outer high alloy cast iron layer of 2530 mm thickness and one inside HT250 grey cast iron layer; and the roller ring and the axle heads are connected through screws. The mill roller is made through centrifugal casting to form the roller ring, casting the axle heads, and bolt connecting the roller ring and the axle heads. The mill roller of the present invention has saving in alloy material, high wear resistance of alloy material layer in the roller surface, lowered cost, high strength and long service life. In addition, the separable roller ring and axle heads have excellent interchangeability, easy replacement of damaged parts and capacity of further reducing cost.
Description
Technical field
The present invention relates to a kind of roll and moulding process thereof, more particularly, relate to preferentially being used in and roll rod and forming method on XK, SK type rubber, the molding machine.
Background technology
The roll of prior art adopts the method manufacturing of static moulding by casting mostly.Especially the roll on XK, SK type rubber, the molding machine all adopts static cast.Problem is, the roll manufacture method of prior art, and owing to roller shell, axle journal all adopt alloy material, so required alloy large usage quantity.Simultaneously, when wearing and tearing occurring,, cause waste because monoblock cast often needs the integral replacing roll.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of roll of architecture advances is provided, be particularly useful for SK type calender.The present invention also provides the manufacturing process of this type of roll.Its purpose is that this type of roll that is primarily aimed at prior art causes problems such as the alloy consumption is big, cost is high, exchange poor performance, existence waste owing to global formation.
In order to address the above problem, a kind of roll of the present invention's design comprises the spindle nose at roller shell and roller shell two ends.Wherein, the roller shell gray iron HT250 cast iron layer that comprises the high alloy iron layer of 2530 millimeters of outer bed thickness and be positioned at internal layer; Roller shell and spindle nose are fixed with one by the bolt that is provided with at interval on the circumference of end.The present invention also provides the moulding process of above-mentioned roller shell, comprises the steps: (1) employing centrifugal casting technique moulding roller shell; (2) casting spindle nose part; (3) utilize bolting to be connected above-mentioned roller shell and spindle nose.At first the high alloy iron layer of 2530 millimeters of outer bed thickness of moulding, secondly the gray iron HT250 cast iron layer of moulding internal layer of the step of moulding roller shell wherein.
Wherein, under the optimal way, above-mentioned high alloy iron layer is selected Ni, Cr, Mo alloy cast iron layer for use.
By technique scheme, the moulding process of roll of the present invention and employing when saving alloy material, guaranteeing roll surface alloy material layer wearability, because remainder is a grey cast-iron, has been avoided the problem of mottled cast iron; Therefore, compare the consumption of having saved alloy with the roll of the roller shell of prior art integral material or integral material, reduced cost, and roll surface part intensity, wearability, the service life of roller shell all significantly improve than prior art.In addition, the advantage that the HT250 that spindle nose adopts has good toughness is difficult for rupturing, and has further improved the serviceability of roll.Adopt the advantage of roller shell and spindle nose separate mode to be to have good interchangeability simultaneously, when roller shell or spindle nose appearance damage, only need independent replacing damage parts, thereby reach the purpose of saving the energy, reducing cost.Therefore the present invention is having marked improvement than prior art aspect economic worth and the use value two.
Description of drawings
Below in conjunction with specific embodiment, further specify the present invention with reference to the accompanying drawings.
Fig. 1 is the structural representation of roll of the present invention;
Fig. 2 is the structural representation of roll mandrel head part among Fig. 1.
The specific embodiment
Roll of the present invention as shown in Figure 1 comprises the spindle nose 1 and 2 (concrete structure is referring to shown in Figure 2) at roller shell 3, roller shell 3 two ends also being provided with seal 4 therebetween.In addition, roller shell 3 parts of the roll of the present invention gray iron HT250 cast iron layer (not shown) that comprises the high alloy iron layer of 2530 millimeters of outer bed thickness and be positioned at internal layer.And roller shell 3 is fixed with one by the bolt 7 that is provided with at interval on the circumference of end with spindle nose 1,2.Wherein, under the optimal way, above-mentioned high alloy iron layer is selected Ni, Cr, Mo alloy cast iron layer for use.
Therefore, the moulding process of roll of the present invention comprises the steps:
(1) adopts centrifugal casting technique moulding roller shell 3, comprise the high alloy iron layer of 2530 millimeters of the outer bed thickness of at first moulding, secondly the gray iron HT250 cast iron layer of moulding internal layer;
(2) casting spindle nose part;
(3) utilize bolt 7 to fixedly connected with spindle nose 1,2 above-mentioned roller shell 3.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1. roll comprises the spindle nose (1,2) at roller shell (3), roller shell two ends it is characterized in that the gray iron HT250 cast iron layer that described roller shell (3) comprises the high alloy iron layer of outer bed thickness 25-30 millimeter and is positioned at internal layer; Described roller shell (3) is fixed with one by the bolt (7) that is provided with at interval on the circumference of end with described spindle nose (1,2).
2. roll according to claim 1 is characterized in that, described high alloy iron layer is Ni, Cr, Mo alloy cast iron layer.
3. the moulding process of claim 1 or 2 described rolls is characterized in that, comprises the steps:
(S1) adopt centrifugal casting technique moulding roller shell (3), comprise the high alloy iron layer of the outer bed thickness 25-30 millimeter of at first moulding, secondly the gray iron HT250 cast iron layer of moulding internal layer;
(S2) casting spindle nose part;
(S3) utilize bolting to be connected with described spindle nose (1,2) above-mentioned roller shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102024937A CN101148074A (en) | 2007-11-12 | 2007-11-12 | Roller and its forming technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102024937A CN101148074A (en) | 2007-11-12 | 2007-11-12 | Roller and its forming technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101148074A true CN101148074A (en) | 2008-03-26 |
Family
ID=39248828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102024937A Pending CN101148074A (en) | 2007-11-12 | 2007-11-12 | Roller and its forming technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101148074A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786147B (en) * | 2009-01-22 | 2012-03-14 | 大连宝锋机器制造有限公司 | Centrifugal casting method for centrifugal compound hollow rolls |
| CN103302457A (en) * | 2013-06-19 | 2013-09-18 | 秦英方 | Rod and wire and manufacturing technology of working roll used for hot strip mill |
| CN104210066A (en) * | 2013-06-03 | 2014-12-17 | 佳能株式会社 | Method for manufacturing resin-made roller shaft, molding die, and resin-made roller shaft |
| CN106676250A (en) * | 2016-12-15 | 2017-05-17 | 广西大学 | Thermal treatment method for chilled cast iron roll |
-
2007
- 2007-11-12 CN CNA2007102024937A patent/CN101148074A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786147B (en) * | 2009-01-22 | 2012-03-14 | 大连宝锋机器制造有限公司 | Centrifugal casting method for centrifugal compound hollow rolls |
| CN104210066A (en) * | 2013-06-03 | 2014-12-17 | 佳能株式会社 | Method for manufacturing resin-made roller shaft, molding die, and resin-made roller shaft |
| US9289958B2 (en) | 2013-06-03 | 2016-03-22 | Canon Kabushiki Kaisha | Method for manufacturing resin-made roller shaft, molding die, and resin-made roller shaft |
| CN103302457A (en) * | 2013-06-19 | 2013-09-18 | 秦英方 | Rod and wire and manufacturing technology of working roll used for hot strip mill |
| CN103302457B (en) * | 2013-06-19 | 2016-09-21 | 秦英方 | A kind of Bar Wire Product and hot strip rolling mill working roll production technology |
| CN106676250A (en) * | 2016-12-15 | 2017-05-17 | 广西大学 | Thermal treatment method for chilled cast iron roll |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080326 |