CN105522118B - A kind of production method of the cold mould for producing cast steel roll and cast steel roll - Google Patents
A kind of production method of the cold mould for producing cast steel roll and cast steel roll Download PDFInfo
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- CN105522118B CN105522118B CN201610054266.3A CN201610054266A CN105522118B CN 105522118 B CN105522118 B CN 105522118B CN 201610054266 A CN201610054266 A CN 201610054266A CN 105522118 B CN105522118 B CN 105522118B
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- cold mould
- roll
- casting
- mould
- cast steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a kind of cold mould for producing cast steel roll and the production methods of cast steel roll, belong to casting technology field.The cold mould includes bottom neck, body of roll cold mould, riser and the casting pipeline for being set side by side with cold mould and being connected with bottom neck being successively set on casting pedestal from the bottom to top, and the body of roll cold mould is that intracavity diameter is identical, outer surface is tubular structure that taper and upper end wall thickness are greater than lower end wall thickness.The processing step of the method for the production cast steel roll includes cold mould design, cold mould spraying, cold mould assembling, moulding by casting.Body of roll cold mould is changed to taper cold mould by same wall thickness straight tube cold mould by the present invention, can increase the heat insulation effect on cold mould top using method of the present invention, increases body of roll temperature gradient, reduces body of roll top setting rate, to guarantee that consecutive solidification is realized in body of roll position.The internal flaw of casting roll can be reduced using the present invention, improve flaw detection quality.
Description
Technical field
The present invention relates to a kind of cold mould for producing cast steel roll and the production methods of cast steel roll, belong to foundry engieering neck
Domain.
Background technique
Cast steel roll barrel length is in 800mm or more, roll barrel position Solidification Quality deviation, is easy to appear internal lack
It falls into.The reason of causing this defect is that be poured roll barrel position temperature gradient small or even without temperature gradient, on roll barrel
Portion's setting time is partially early, and cutting causes final solidified region in the middle part of roll barrel that cannot have the Feeding channel in the middle part of the body of roll
Imitate feeding.Thus rarefaction defect is generated, quality of detecting a flaw is influenced.
Currently, roller cold type is with wall thickness straight-tube shape cold mould, and cold mould intracavity diameter is identical, and cold mould wall thickness is identical, is being poured
When will lead to that roll barrel position temperature gradient is small, and roll internal soundness is poor after solidification using such cold mould.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind can guarantee casting after body of roll solidified inside quality it is cold
Type.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of cold mould producing cast steel roll, the cold mould include the bottom being successively set on casting pedestal from the bottom to top
Neck, body of roll cold mould, riser and the casting pipeline for being set side by side with cold mould and being connected with bottom neck, it is characterised in that: the roller
Body cold mould is that intracavity diameter is identical, outer surface is tubular structure that taper and upper end wall thickness are greater than lower end wall thickness.
Further, the gradient of the body of roll cold mould outer wall is 1:25~1:30.
Further, the identical annular groove of several groover rot diameters is set on the body of roll cold mould outer wall.
Further, heat preservation rock is wrapped up on the annular groove.
A kind of production method of cast steel roll, includes the following steps,
1) cold mould designs, straight according to the height of the finished size of roll product design body of roll cold mould and body of roll cold mould inner cavity
Diameter, with the outer draft of setting, designs body of roll cold mould outer wall dimension on the basis of wall thickness among body of roll cold mould；
2) cold mould sprays, and it is identical and match with flush coater tugboat to go out several groover rot diameters in the outer wall vehicle of body of roll cold mould
Annular groove, body of roll cold mould is placed on flush coater and rotates sprayed coating；
3) cold mould assembling, the bottom neck set gradually on pouring pedestal according to sequence from the bottom to top, body of roll cold mould, riser
And casting pipeline, the wall thickness end setting of body of roll cold mould are arranged under at the thin end of upper, wall, wrap up and protecting on the annular groove of body of roll cold mould
Warm rock wool；
4) moulding by casting, the moulding by casting under certain process conditions.
Further, wall thickness is 210~220mm among the body of roll cold mould, and outer draft is 1:25~1:30.
Further, the riser and the length ratio of body of roll cold mould are 1:1.2~1:1.5.
By adopting the above-described technical solution, the technological progress achieved by the present invention is:
Body of roll cold mould is changed to taper cold mould by same wall thickness straight tube cold mould by the present invention, can increase the heat preservation effect on cold mould top
Fruit increases body of roll temperature gradient, reduces body of roll top setting rate, to guarantee that consecutive solidification is realized in body of roll position.
The internal flaw that casting roll can be reduced using the present invention improves the flaw detection qualification rate of workpiece, guarantees product matter
Amount.
The gradient of the cold mould outer wall conical surface is designed as 1:25~1:30 in the present invention, this verified gradient range is reasonable
The effect for making body of roll consecutive solidification may be implemented in range.
Detailed description of the invention
Fig. 1 is cold mould structural schematic diagram；
Fig. 2 is body of roll cold mould schematic diagram；
Fig. 3 is body of roll cold mould preferred embodiment schematic diagram.
Wherein, 1 it is riser, 2 is that body of roll cold mould, 2-1 are annular grooves, 3 are bottom necks, 4 are casting pipelines, 5 are pedestals.
Specific embodiment
The present invention is described in further details below with reference to embodiment:
Such as two kinds of structural schematic diagrams that Fig. 2, Fig. 3 are body of roll cold mould.It is cold that the present invention will be changed to taper with wall thickness straight tube cold mould
Type.
It is described production cast steel roll cold mould include be successively set on from the bottom to top casting pedestal 5 on bottom neck 3, the body of roll it is cold
Type 2, riser 1 and the casting pipeline 4 for being set side by side with cold mould and being connected with bottom neck 3, specific structure is as shown in Figure 1.It is described
Body of roll cold mould 2 is that intracavity diameter is identical, outer surface is tubular structure that taper and upper end wall thickness are greater than lower end wall thickness.The body of roll
The gradient of 3 outer wall of cold mould is 1:25~1:30.The identical annular groove of several groover rot diameters is set on 2 outer wall of body of roll cold mould
2-1, to be used when sprayed coating on flush coater.In order to guarantee that heat insulation effect wraps up heat preservation rock on the annular groove 2-1.
The method of production cast steel roll of the present invention, comprising the following steps:
1) cold mould designs, and 2 inner cavity of height and body of roll cold mould of body of roll cold mould 2 is designed according to the finished size of roll product
Diameter, with the outer draft of setting, designs 2 outer wall dimension of body of roll cold mould on the basis of the intermediate wall thickness of body of roll cold mould 2；
2) cold mould sprays, and it is identical and match with flush coater to go out several groover rot diameters in the outer wall vehicle of body of roll cold mould 2
Body of roll cold mould 2 is placed on flush coater and rotates sprayed coating by annular groove 2-1；
3) cold mould assembling, the bottom neck 3 set gradually on pouring pedestal according to sequence from the bottom to top, emit body of roll cold mould 2
The wall thickness end setting of mouth 1 and casting pipeline 4, body of roll cold mould 2 is arranged under at the thin end of upper, wall, in the annular groove 2- of body of roll cold mould 2
Heat preservation rock is wrapped up on 1, is assembled into the cold mould of production cast steel roll as shown in Figure 1 of the invention；
4) moulding by casting, the moulding by casting under certain process conditions.
It needs to design cold mould intracavity diameter, height, outer draft according to the finished size of roll product in a particular application.
Embodiment 1
1) cold mould designs, oblique with fixed outer wall in the present embodiment on the basis of 2 middle wall thickness 220mm of body of roll cold mould
1:30 is spent, 2 outer wall dimension of body of roll cold mould is designed.The intracavity diameter of body of roll cold mould 2 is 1160mm in the present embodiment, and upper end wall thickness is
260mm, lower end wall thickness are 180mm, are highly 2395mm.It, can in actual production according to the finished size of different roll products
It can achieve ideal heat insulation effect between 1:25~1:30 to design the outer draft of body of roll cold mould 2.
2) cold mould sprays, and protective materials is sprayed in 2 inner cavity of body of roll cold mould before the cold mould use, in body of roll cold mould 2
Outer wall vehicle goes out the annular groove 2-1 that several groover rot diameters are identical and match with flush coater tugboat, and the specific structure is shown in FIG. 3, will
Body of roll cold mould 2, which is placed on flush coater, rotates sprayed coating.
3) cold mould assembling, the bottom neck 3 set gradually on pouring pedestal according to sequence from the bottom to top, emit body of roll cold mould 2
The wall thickness end setting of mouth 1 and casting pipeline 4, body of roll cold mould 2 is arranged under at the thin end of upper, wall, specifically as shown in Figure 1, in roller
Heat preservation rock is wrapped up on the annular groove of body cold mould 2, is assembled into the cold mould of heretofore described production cast steel roll.
It is very fast to avoid radiating at deeper ring groove position in use, cause the body of roll cracked, in deeper annular groove
Rock wool heat-preservation has been wrapped up at position.
4) moulding by casting, the moulding by casting under certain process conditions.
Roll is produced using the above method, body of roll cold mould 2 is designed as taper cold mould, body of roll top heat preservation effect can be improved
Fruit reduces setting rate, realizes consecutive solidification, reduces the internal flaw of casting roll.
Claims (1)
1. a kind of method using cold mould production cast steel roll, cast steel roll barrel length include in 800mm or more, the cold mould
It is successively set on the bottom neck (3) being poured on pedestal (5), body of roll cold mould (2), riser (1) from the bottom to top and is set side by side with cold mould
The casting pipeline (4) set and be connected with bottom neck (3), it is characterised in that: the length ratio of the riser (1) and body of roll cold mould (2)
For 1:1.2~1:1.5；The body of roll cold mould (2) is that intracavity diameter is identical, outer surface is taper and upper end wall thickness is greater than lower end wall
Thick tubular structure；The identical annular groove of several groover rot diameters (2-1) is set on body of roll cold mould (2) outer wall；The annular groove
Heat preservation rock is wrapped up on (2-1)；It the described method comprises the following steps,
1) cold mould designs, and height and body of roll cold mould (2) inner cavity of body of roll cold mould (2) are designed according to the finished size of roll product
Diameter with the outer draft of setting, designs body of roll cold mould (2) outer wall dimension on the basis of the intermediate wall thickness of body of roll cold mould (2)；Institute
Stating the intermediate wall thickness of body of roll cold mould (2) is 210~220mm, and outer draft is 1:25~1:30；
2) cold mould sprays, and it is identical and match with flush coater tugboat to go out several groover rot diameters in the outer wall vehicle of body of roll cold mould (2)
Annular groove (2-1), body of roll cold mould (2) is placed on flush coater and rotates sprayed coating；
3) cold mould assembling, the bottom neck (3) set gradually on pouring pedestal (5) according to sequence from the bottom to top, body of roll cold mould
(2), the wall thickness end setting of riser (1) and casting pipeline (4), body of roll cold mould (2) is arranged under at the thin end of upper, wall, in the body of roll
Heat preservation rock is wrapped up on the annular groove (2-1) of cold mould (2)；
4) moulding by casting, the moulding by casting under certain process conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054266.3A CN105522118B (en) | 2016-01-27 | 2016-01-27 | A kind of production method of the cold mould for producing cast steel roll and cast steel roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054266.3A CN105522118B (en) | 2016-01-27 | 2016-01-27 | A kind of production method of the cold mould for producing cast steel roll and cast steel roll |
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| CN105522118A CN105522118A (en) | 2016-04-27 |
| CN105522118B true CN105522118B (en) | 2019-02-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584075A (en) * | 2016-07-06 | 2018-01-16 | 科华控股股份有限公司 | It is a kind of to replace Runner Exhaust pin to save the structure of molten steel using rock wool pad |
| CN109663894A (en) * | 2018-12-19 | 2019-04-23 | 中钢集团邢台机械轧辊有限公司 | A kind of manufacturing method for solving roll neck and penetrating the centrifugal compound roll of defect |
| CN111922293A (en) * | 2020-10-12 | 2020-11-13 | 常州凯达重工科技有限公司 | Casting mold for roller with mud core seat and mud core falling method for roller |
| CN112499459A (en) * | 2020-11-10 | 2021-03-16 | 池州市全发机械科技发展有限公司 | Casting forming equipment for high-speed steel roller |
| CN113263167A (en) * | 2021-04-20 | 2021-08-17 | 甘肃酒钢集团西部重工股份有限公司 | Flange casting equipment with diameter of more than 800 mm and casting method thereof |
| CN113547072A (en) * | 2021-06-15 | 2021-10-26 | 中钢集团邢台机械轧辊有限公司 | Pouring method of cast steel roller |
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| CN101367122A (en) * | 2008-05-12 | 2009-02-18 | 中钢集团邢台机械轧辊有限公司 | Anticentripetal roll collar workblank combined fixture casting method |
| CN102699287A (en) * | 2012-06-04 | 2012-10-03 | 孙柏良 | Novel steel ingot water cooling casting mold and novel steel ingot water cooling casting method |
| CN204603272U (en) * | 2015-03-06 | 2015-09-02 | 中钢集团邢台机械轧辊有限公司 | With the roll apparatus for pouring of pre-buried ground wire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102602B (en) * | 1985-04-01 | 1988-01-27 | 大连工学院 | Technology of infiltration casting for making cast iron chilled rolls |
| CN104525889B (en) * | 2014-12-31 | 2016-09-07 | 中钢集团邢台机械轧辊有限公司 | A kind of manufacture method of high-speed steel roll |
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- 2016-01-27 CN CN201610054266.3A patent/CN105522118B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367122A (en) * | 2008-05-12 | 2009-02-18 | 中钢集团邢台机械轧辊有限公司 | Anticentripetal roll collar workblank combined fixture casting method |
| CN102699287A (en) * | 2012-06-04 | 2012-10-03 | 孙柏良 | Novel steel ingot water cooling casting mold and novel steel ingot water cooling casting method |
| CN204603272U (en) * | 2015-03-06 | 2015-09-02 | 中钢集团邢台机械轧辊有限公司 | With the roll apparatus for pouring of pre-buried ground wire |
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| CN105522118A (en) | 2016-04-27 |
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