CN201040309Y

CN201040309Y - Orifice casting cold model for roller

Info

Publication number: CN201040309Y
Application number: CNU2007200052904U
Authority: CN
Inventors: 高建波
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-06
Filing date: 2007-03-06
Publication date: 2008-03-26
Anticipated expiration: 2017-03-06

Abstract

The utility model relates to a cold type box for a roll, which is used in industry of manufacturing rolling steel, in particular to the cold type box for a casting roll with a pass. The utility model comprises a cold type body (1) and a sliding iron core (2), and surface shape and size of the sliding iron core are matched with the shape and size of the roll pass, and the sliding iron core (2) is fixed inside the cold body (1), and the shape of space (4) inside the cold type body is matched with the shape of a roll product. When using the utility model, the pass is cast with a blank roll in one body, therefore ensuring surface hardness of the whole pass to be accorded with the surface hardness of the whole roll. The utility model has the characters of reasonable structure, novel and ingenious conception and being convenient and practical, etc, which is dedicated for the casting roll with the pass to prolong service life of the roll pass, therefore the utility model improves production yield and quality of the rolling steel, reduces weight of the blank roll and machining labor intensity and decreases production cost of the rolling steel.

Description

The cold mould that mold casting roll with holes is used

Technical field:

The utility model relates to a kind of cold mould that steel rolling roll is used of casting, the cold mould that mold casting roll particularly with holes is used.

Background technology:

At present, the roll of the industrial use of steel rolling all is common straight forming roll or special-shaped roller, its manufacture craft is as follows: moulding----dries----cold mould assembling----melting molten iron----casting----blank moulding----machined----semi-finished product----open cell type----finished product, the problem that this technology exists is: the pass of leaving on the surface of roll also is deliquescing gradually from outside to inside, because the reduction of hardness, the quality and the service life of roll have been influenced, reduce the output that steel rolling is produced, increased working strength of workers.For addressing this problem, I have invented " a kind of technology of mold casting roll with holes ", apply for patent of invention simultaneously, new technology has following advantage and effect: the roll pass hardness of producing is even, prolonged the service life of roll pass, improve output and product quality that steel rolling is produced, alleviated the weight and the machined labour intensity of blank roll, reduced the steel rolling production cost.The cold mould structure of making the roll employing in the background technology is: the spatial form in the cold mould body is the shape that needs the blank roll of making, the i.e. shape of roll before the open cell type not, cold mould in the background technology can not be finished mold casting roll with holes, needs special-purpose cold mould could realize the technology of mold casting roll with holes.

The utility model content:

The utility model purpose provides the cold mould that a kind of mold casting roll with holes is used, be exclusively used in mold casting roll with holes, the roll pass hardness of producing is even, has prolonged the service life of roll pass, corresponding improving product quality and yield solves the problems referred to above that background technology exists.

The technical solution of the utility model is: the cold mould that mold casting roll with holes is used is formed and is comprised cold mould body and slip iron core, shape, the size of the roll pass that the appearance of slip iron core, size and needs are made are complementary, the slip iron core is fixed in the cold mould body, and the spatial form in the whole cold mould is complementary with the roll finished form that needs to make.

The slip iron core can be that bolt is connected with connected mode between the cold mould body, and the iron core that promptly slides is by being bolted in the cold mould body.Said finished product roller shape is meant the roll appearance that has pass.

Because iron core of the present utility model when molten iron shrinks moulding, is opened fixing bolt behind the casting molten iron, iron core can slide in cold mould, so be referred to as " slip iron core ", be the utility model, also be the key point of the technology of mold casting roll with holes.Said slip iron core can be circular-arc, and the above circular-arc iron core group of two parts lumps together, and forms the ring-type iron core; The shape of ring is complementary with the roll pass shape that needs to make in the slip iron core; The quantity that is combined into ring-type slip iron core is arbitrarily, and the roll pass combination of shapes that can make as required is arranged in the cold mould, and after the ring-type iron core made up in the cold mould body, the space in the cold mould was exactly the finished product roller shape that needs making.

Cold mould can be combined by two parts cold mould body, the slit of combination makes the axial direction of roll at needs, each part cold mould body of the present invention all is an integral body, do not need the combination of layering again, just there is not the slit of cold mould combination, improves castability in the axial vertical direction of needs making roll.

Connected mode between slip iron core and the cold mould body except that bolt connects, can also adopt other public, demountable connected mode, and after dismounting connected, iron core can slide in the cold mould body.

The technology of mold casting roll with holes is: the roll specification of Zhi Zuoing as required, design and produce out cold mould and slip iron core, shape, the size of the roll pass that the appearance of slip iron core, size and needing made are complementary, and the spatial form in the whole cold mould is complementary with the roll finished form that needs to make; Cast molten iron 10-60 minute, remove between cold mould and the slip iron core set bolt, when the molten iron moulding is shunk, the slip iron core just can slide in cold mould, shrink moulding with the molten iron that adapts in the cold mould, the quality that prevents the stress breaker roll that the molten iron contraction produces exerts an influence, and cools off the back shake out, casts out the blank roller of type with holes; Finished product is repaired out in machined.

Use the utility model,, guaranteed that the hardness on whole pass surface is consistent with whole roller surface hardness because pass comes out with blank roller integrally casting.

The utility model reasonable, novel characteristics such as ingenious, convenient and practical of structure of signing an undertaking, be exclusively used in mold casting roll with holes, the roll pass hardness of producing is even, prolonged the service life of roll pass, output and product quality that steel rolling is produced have been improved, alleviate the weight and the machined labour intensity of blank roll, reduced the steel rolling production cost.

Description of drawings:

Fig. 1 is the utility model embodiment one structural representation.

Fig. 2 is the utility model embodiment two structural representations.

Fig. 3 is the utility model embodiment three structural representations.

Among the figure: the space 4 between cold mould body 1, slip iron core 2, cold mould and slip iron core in set bolt 3, the cold mould.

The specific embodiment:

Below in conjunction with accompanying drawing, further specify the utility model by embodiment.

With reference to accompanying drawing 1, embodiment one is the cold mould of making rolling angle iron roll top roll, form and comprise cold mould body 1 and slip iron core 2, the appearance of slip iron core 2, the shape of the top roll pass of the angle steel roll that size and needs are made, size is complementary, slip iron core 2 is fixed in the cold mould body 1 by bolt 3, space 4 shapes in the whole cold mould are complementary with the finished form of the angle steel roll top roll that needs to make, the slip iron core is circular-arc, the circular-arc iron core group of two parts lumps together, form the ring-type iron core, the shape of ring is complementary with the angle steel roll top roll pass shape that needs to make in the slip iron core; The quantity that is combined into ring-type slip iron core is 3 ring-type iron cores, and after the combination, the space in the cold mould is exactly the finished product roller shape of rolling angle iron top roll in the cold mould body.

Cast molten iron 10-60 minute in space 4 in cold mould, remove between cold mould body 1 and the slip iron core 2 set bolt 3, when the molten iron moulding is shunk, slip iron core 2 just can slide in cold mould, shrink moulding with the molten iron that adapts in the cold mould, the quality that prevents the stress breaker roll that the molten iron contraction produces exerts an influence, because pass comes out with blank roller integrally casting, need not to use again mach mode at blank roller surface open cell type, guaranteed that the hardness on whole pass surface is consistent with whole roller surface hardness.

With reference to accompanying drawing 2, embodiment two is the cold moulds of making rolling angle iron roll lower roll, its structure and embodiment one are basic identical, difference is: the slip iron core is circular-arc, the circular-arc iron core group of two parts lumps together, form the ring-type iron core, the shape of ring is complementary with the angle steel roll lower roll pass shape that needs to make in the slip iron core; The quantity that is combined into ring-type slip iron core is 4 ring-type iron cores, and after the combination, the space in the cold mould is exactly the finished product roller shape of rolling angle iron lower roll in the cold mould body.

With reference to accompanying drawing 3, embodiment three is the cold moulds of making the rolling channel steel roll, its structure and embodiment one are basic identical, difference is: the slip iron core is circular-arc, the circular-arc iron core group of two parts lumps together, form the ring-type iron core, the shape of ring is complementary with the Channel Bar Steel Roller type shape that needs to make in the slip iron core; The quantity that is combined into ring-type slip iron core is 3 ring-type iron cores, and after the combination, the space in the cold mould is exactly the finished product roller shape of rolling channel steel in the cold mould body.

Claims

1. cold mould that mold casting roll with holes is used, it is characterized in that forming and comprise cold mould body (1) and slip iron core (2), shape, the size of the roll pass that the appearance of slip iron core, size and needs are made are complementary, slip iron core (2) is fixed in the cold mould body (1), and space (4) shape in the whole cold mould is complementary with the roll finished form that needs to make.

2. the cold mould of using according to the described mold casting roll with holes of claim 1, the iron core (2) that it is characterized in that sliding is fixed in the cold mould body (1) by bolt (3).

3. the cold mould of using according to claim 1 or 2 described mold casting rolls with holes, it is characterized in that said slip iron core (2) is the annulus arcuation, the above circular-arc iron core group of two parts lumps together, form the ring-type iron core, the shape of ring is complementary with the roll pass shape that needs to make in the slip iron core.

4. the cold mould of using according to the described mold casting roll with holes of claim 3, the quantity that it is characterized in that being combined into ring-type slip iron core is arbitrarily, after the ring-type iron core made up in the cold mould body, the space in the cold mould was exactly to need the finished product roller shape of making.

5. the cold mould of using according to claim 1 or 2 described mold casting rolls with holes is characterized in that cold mould is combined by two parts cold mould body, and the slit of combination makes the axial direction of roll at needs, and each part cold mould body all is an integral body.