CN211199365U - Squeeze roll sleeve in roll squeezer - Google Patents
Squeeze roll sleeve in roll squeezer Download PDFInfo
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- CN211199365U CN211199365U CN201922330971.3U CN201922330971U CN211199365U CN 211199365 U CN211199365 U CN 211199365U CN 201922330971 U CN201922330971 U CN 201922330971U CN 211199365 U CN211199365 U CN 211199365U
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Abstract
The utility model belongs to the technical field of the squeeze roll, a squeeze roll roller shell in roll squeezer is disclosed. The utility model discloses squeeze roll roller shell in roll squeezer includes the matrix, and the outside carbide piece of matrix deposits metal A, deposits metal B, the matrix forms through thermal treatment after static casting, the carbide piece is in with the insert casting uniformly on the excircle of matrix, be a piece ground spaced apart neatly range in the axial, deposit metal A build-up welding on the axial direction in the carbide piece circumferential gap, deposit metal B build-up welding and be in deposit metal A upper surface, deposit metal B's average height is greater than the height of carbide piece. Compare with traditional roller shell, the utility model discloses a squeeze roll roller shell has characteristics such as increase wearability, increase of service life, shock resistance by a wide margin, can improve the quality of use and the life-span of squeeze roll roller shell by a wide margin, makes the squeeze roll roller shell be in high-efficient state all the time, practices thrift the cost.
Description
Technical Field
The utility model relates to a squeeze roll technical field specifically is a squeeze roll roller shell in roll squeezer is related to.
Background
The roll mantle of the squeeze roll in a roll press is an important part in the manufacture of cement. The roll sleeve of the squeeze roll in a general roll squeezer adopts a method of overlaying high-carbon high-chromium hard alloy materials to solve the grinding abrasion-resistant problem, namely, medium-carbon alloy forged steel with the carbon content of 0.2-0.4% is adopted, after the preliminary heat treatment, an abrasion-resistant layer is overlaid on the excircle part, the thickness of the abrasion-resistant layer is about 8mm, and the roll sleeve of the squeeze roll obtained by the method has the following problems in use: 1. the wear-resistant layer is thin, like an egg shell, when the thin wear-resistant layer is worn by powder grinding, pits are formed on the surface immediately in extrusion impact and repeated grinding of cement materials, and if the surface is not repaired and built up in time, the pits are larger; 2. welding cracks are left after the wear-resistant layer is built up, and when cement materials are used, if large blocks exist, the grindability is poor, and when iron blocks exist, the phenomena of stripping, block falling and the like easily occur; 3. when pits and stripping blocks occur, in order to ensure the normal use of the squeeze roll, the online repair and surfacing must be frequently and continuously carried out, so that the shutdown maintenance is caused, the production progress is influenced, and a large amount of manpower and material resources are consumed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned background art not enough, provide an extrusion roll roller shell in roll squeezer. The utility model discloses squeeze roll roller shell in roll squeezer, the appearance structure is unique, possesses high wear resistant characteristics, and life improves by a wide margin, also only needs to carry out the later stage short time, simple online restoration repair welding to easy wearing and tearing position during the long-time high strength use, cost such as material resources of using manpower sparingly.
For reaching the utility model discloses a purpose, the utility model discloses squeeze roll roller shell in roll squeezer includes the matrix, and the outside carbide piece of matrix deposits metal A, deposits metal B, the matrix forms through thermal treatment after static casting, the carbide piece is in with the insert casting uniformly on the excircle of matrix, axially be a piece ground spaced apart neatly arranged, deposit metal A build-up welding on the axial direction in the carbide piece circumferential gap, deposit metal B build-up welding and be in deposit metal A upper surface, deposit metal B's average height is greater than the height of carbide piece.
Further, the parent body comprises the following chemical components in percentage by mass: c: 0.25-0.35%, Si: 0.17-0.37%, Mn: 0.4-0.7%, Cr: 0.8-1.1%, Mo: 0.15-0.25% and the balance Fe.
Further, the hard alloy block comprises the following chemical components in percentage by mass: c: 9.10-9.40%, Ti: 34.0-37.0%, Mn: 2.0-3.0%, Ni: 1.20-2.50%, Mo: 1.10-2.0 percent, and the balance of Fe.
Further, the deposited metal A comprises the following chemical components in percentage by mass: c: 0.05 to 0.1%, Si: 0.1-0.4%, Mn: 12.0-13.5%, Cr: 9.0-11.5%, Mo: 0.2-0.7%, Ni: 0.50-1.2 percent, and the balance of Fe.
Further, the deposited metal B comprises the following chemical components in percentage by mass: c: 4.40-5.50%, Si: 0.5-1.5%, Mn: 0.5-1.5%, Cr: 22.0-25.0%, Nb: 6.0-8.0 percent, and the balance of Fe.
Further, the deposited metal A adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 330-.
Further, the deposited metal B adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 350-420A, and the moving speed of the overlaying welding is 400-560 mm/min.
Further, the cemented carbide piece and the deposited metal B have a zigzag shape.
When the cement materials are actually ground, the hard alloy blocks are used as material cushion parts of the ground cement materials, and the deposited metal B is used as grinding parts of the ground cement materials.
On the other hand, the utility model also provides a preparation method of squeeze roll roller shell in aforementioned roll squeezer, the method includes following step:
(1) stirring and mixing the parent raw materials, putting the mixture into an electric furnace smelting furnace, and melting the mixture into metal liquid;
(2) uniformly fixing the hard alloy blocks on the inner wall of the sand box through steel nails, axially and tidily arranging the hard alloy blocks with gaps, installing and fixing a sand core in the center of the sand box, and pouring the metal liquid obtained in the step (1) into a cavity of the sand box;
(3) opening the sand box after natural cooling, crushing and taking out the sand core in the product poured in the step (2), and cleaning the sand on the surface of the product;
(4) putting the cooled product into an electric heating furnace, heating to 680-720 ℃ at a heating rate of 48-52 ℃/h, preserving the heat for 15-17 h, and then cooling to 20-25 ℃ along with the furnace;
(5) heating to 920-960 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 14-16 h, cooling in air, cooling to 20-25 deg.C, heating to 530-570 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 15-17 h, and cooling to 20-25 deg.C;
(6) and overlaying the deposited metal A in the circumferential gap of the hard alloy block in the axial direction, and overlaying the deposited metal B on the deposited metal A.
Further, the smelting temperature in the step (1) is 1550-.
Compared with the prior art, the utility model discloses squeeze roll roller shell's among the roll squeezer advantage as follows:
1. the matrix is made of medium carbon alloy steel, has weldability, and has high bonding strength with deposited metal A generated by surfacing welding and can not fall off;
2. the hard alloy block serving as the grinding material cushion part has high strength and hardness, good wear resistance and difficult abrasion;
3. the deposited metal B serving as the main grinding part of the grinding is made of a high-carbon high-chromium high-niobium metal material, so that the deposited metal B has excellent wear resistance and is difficult to wear, and the deposited metal B can be simply repaired and welded on line in a short time after being worn;
4. compare with traditional roller shell, the utility model discloses a squeeze roll roller shell has characteristics such as increase wearability, increase of service life, shock resistance by a wide margin, can improve the quality of use and the life-span of squeeze roll roller shell by a wide margin, makes the squeeze roll roller shell be in high-efficient state all the time, practices thrift the cost.
Drawings
FIG. 1 is a front view of the surface structure of a squeeze roll sleeve according to embodiments 1-3 of the present invention;
FIG. 2 is a top view of the surface structure of the squeeze roll shell of embodiments 1-3 of the present invention;
wherein 1 is a matrix, 2 is a cemented carbide block, 3 is a deposited metal A, and 4 is a deposited metal B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention. It is to be understood that the following description is only intended to illustrate the present invention and is not intended to limit the present invention.
The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
Furthermore, the technical features of the embodiments of the present invention may be combined with each other as long as they do not conflict with each other.
Example 1
The squeeze roll sleeve in the roll squeezer comprises a parent body 1, a hard alloy block 2, deposited metal A3 and deposited metal B4, wherein the parent body 1 is formed by heat treatment after static casting, as shown in the attached drawing 1, the hard alloy block 2 is uniformly cast in the outer circle of the parent body 1 and is axially arranged regularly at intervals one by one, the deposited metal A3 is welded in the circumferential gap of the hard alloy block 2 in the axial direction, the deposited metal B4 is welded on the deposited metal A3, the average height of the deposited metal B4 is larger than the height of the hard alloy block 2, and the hard alloy block and the deposited metal B are in a sawtooth shape. When the cement materials are actually ground, the hard alloy blocks are used as material cushion parts of the ground cement materials, and the deposited metal B is used as grinding parts of the ground cement materials.
The parent body comprises the following chemical components in percentage by mass: c: 0.25%, Si: 0.17%, Mn: 0.4%, Cr: 0.8%, Mo: 0.15 percent and the balance of Fe.
The hard alloy block comprises the following chemical components in percentage by mass: c: 9.10%, Ti: 37.0%, Mn: 3.0%, Ni: 2.50%, Mo: 2.0 percent and the balance of Fe.
The deposited metal A comprises the following chemical components in percentage by mass: c: 0.1%, Si: 0.4%, Mn: 13.5%, Cr: 11.5%, Mo: 0.7%, Ni: 1.2 percent and the balance of Fe.
The deposited metal B comprises the following chemical components in percentage by mass: c: 4.40%, Si: 0.5%, Mn: 0.5%, Cr: 22.0%, Nb: 6.0 percent and the balance of Fe.
The preparation method of the extrusion roller sleeve in the roller press comprises the following steps:
(1) stirring and mixing the parent raw materials, putting the mixture into an electric furnace smelting furnace to be smelted into metal liquid, wherein the smelting temperature is 1550-;
(2) uniformly fixing the hard alloy blocks on the inner wall of the sand box through steel nails, axially and regularly arranging the hard alloy blocks with gaps, installing and fixing a sand core in the center of the sand box, and then pouring the metal liquid obtained in the step (1) into a cavity of the sand box at the pouring temperature of 1450-1490 ℃;
(3) opening the sand box after natural cooling, crushing and taking out the sand core in the product poured in the step (2), and cleaning the sand on the surface of the product, wherein the natural cooling time is more than 72 hours;
(4) putting the cooled product into an electric heating furnace, heating to 680-720 ℃ at a heating rate of 48-52 ℃/h, preserving the heat for 15-17 h, and then cooling to 20-25 ℃ along with the furnace;
(5) heating to 920-960 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 14-16 h, taking out, cooling with electric fan in air, cooling to 20-25 deg.C, feeding into the furnace again, heating to 530-570 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 15-17 h, and cooling to 20-25 deg.C;
(6) surfacing the deposited metal A in the circumferential gap of the hard alloy block in the axial direction, and surfacing the deposited metal B on the deposited metal A; the deposited metal A adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 330-; the deposited metal B adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 350-420A, and the moving speed of the overlaying welding is 400-560 mm/min.
Example 2
The squeeze roll sleeve in the roll squeezer comprises a parent body 1, a hard alloy block 2, deposited metal A3 and deposited metal B4, wherein the parent body 1 is formed by heat treatment after static casting, as shown in the attached drawing 1, the hard alloy block 2 is uniformly cast in the outer circle of the parent body 1 and is axially arranged regularly at intervals one by one, the deposited metal A3 is welded in the circumferential gap of the hard alloy block 2 in the axial direction, the deposited metal B4 is welded on the deposited metal A3, the average height of the deposited metal B4 is larger than the height of the hard alloy block 2, and the hard alloy block and the deposited metal B are in a sawtooth shape. When the cement materials are actually ground, the hard alloy blocks are used as material cushion parts of the ground cement materials, and the deposited metal B is used as grinding parts of the ground cement materials.
The parent body comprises the following chemical components in percentage by mass: c: 0.35%, Si: 0.37%, Mn: 0.7%, Cr: 1.1%, Mo: 0.25 percent and the balance of Fe.
The hard alloy block comprises the following chemical components in percentage by mass: c: 9.40%, Ti: 34.0%, Mn: 2.0%, Ni: 1.20%, Mo: 1.10 percent and the balance of Fe.
The deposited metal A comprises the following chemical components in percentage by mass: c: 0.05%, Si: 0.1%, Mn: 12.0%, Cr: 9.0%, Mo: 0.2%, Ni: 0.50 percent and the balance of Fe.
The deposited metal B comprises the following chemical components in percentage by mass: c: 5.50%, Si: 1.5%, Mn: 1.5%, Cr: 25.0%, Nb: 8.0 percent and the balance of Fe.
The preparation method of the extrusion roller sleeve in the roller press comprises the following steps:
(1) stirring and mixing the parent raw materials, putting the mixture into an electric furnace smelting furnace to be smelted into metal liquid, wherein the smelting temperature is 1550-;
(2) uniformly fixing the hard alloy blocks on the inner wall of the sand box through steel nails, axially and regularly arranging the hard alloy blocks with gaps, installing and fixing a sand core in the center of the sand box, and then pouring the metal liquid obtained in the step (1) into a cavity of the sand box at the pouring temperature of 1450-1490 ℃;
(3) opening the sand box after natural cooling, crushing and taking out the sand core in the product poured in the step (2), and cleaning the sand on the surface of the product, wherein the natural cooling time is more than 72 hours;
(4) putting the cooled product into an electric heating furnace, heating to 680-720 ℃ at a heating rate of 48-52 ℃/h, preserving the heat for 15-17 h, and then cooling to 20-25 ℃ along with the furnace;
(5) heating to 920-960 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 14-16 h, taking out, cooling with electric fan in air, cooling to 20-25 deg.C, feeding into the furnace again, heating to 530-570 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 15-17 h, and cooling to 20-25 deg.C;
(6) surfacing the deposited metal A in the circumferential gap of the hard alloy block in the axial direction, and surfacing the deposited metal B on the deposited metal A; the deposited metal A adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 330-; the deposited metal B adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 350-420A, and the moving speed of the overlaying welding is 400-560 mm/min.
Example 3
The squeeze roll sleeve in the roll squeezer comprises a parent body 1, a hard alloy block 2, deposited metal A3 and deposited metal B4, wherein the parent body 1 is formed by heat treatment after static casting, as shown in the attached drawing 1, the hard alloy block 2 is uniformly cast in the outer circle of the parent body 1 and is axially arranged regularly at intervals one by one, the deposited metal A3 is welded in the circumferential gap of the hard alloy block 2 in the axial direction, the deposited metal B4 is welded on the deposited metal A3, the average height of the deposited metal B4 is larger than the height of the hard alloy block 2, and the hard alloy block and the deposited metal B are in a sawtooth shape. When the cement materials are actually ground, the hard alloy blocks are used as material cushion parts of the ground cement materials, and the deposited metal B is used as grinding parts of the ground cement materials.
The parent body comprises the following chemical components in percentage by mass: c: 0.30%, Si: 0.27%, Mn: 0.55%, Cr: 0.95%, Mo: 0.20 percent and the balance of Fe.
The hard alloy block comprises the following chemical components in percentage by mass: c: 9.25%, Ti: 35.5%, Mn: 2.5%, Ni: 1.90%, Mo: 1.55 percent and the balance of Fe.
The deposited metal A comprises the following chemical components in percentage by mass: c: 0.08%, Si: 0.25%, Mn: 12.8%, Cr: 10.25%, Mo: 0.45%, Ni: 0.85 percent and the balance of Fe.
The deposited metal B comprises the following chemical components in percentage by mass: c: 4.95%, Si: 1.0%, Mn: 1.0%, Cr: 23.5%, Nb: 7.0 percent and the balance of Fe.
The preparation method of the extrusion roller sleeve in the roller press comprises the following steps:
(1) stirring and mixing the parent raw materials, putting the mixture into an electric furnace smelting furnace to be smelted into metal liquid, wherein the smelting temperature is 1550-;
(2) uniformly fixing the hard alloy blocks on the inner wall of the sand box through steel nails, axially and regularly arranging the hard alloy blocks with gaps, installing and fixing a sand core in the center of the sand box, and then pouring the metal liquid obtained in the step (1) into a cavity of the sand box at the pouring temperature of 1450-1490 ℃;
(3) opening the sand box after natural cooling, crushing and taking out the sand core in the product poured in the step (2), and cleaning the sand on the surface of the product, wherein the natural cooling time is more than 72 hours;
(4) putting the cooled product into an electric heating furnace, heating to 680-720 ℃ at a heating rate of 48-52 ℃/h, preserving the heat for 15-17 h, and then cooling to 20-25 ℃ along with the furnace;
(5) heating to 920-960 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 14-16 h, taking out, cooling with electric fan in air, cooling to 20-25 deg.C, feeding into the furnace again, heating to 530-570 deg.C at a heating rate of 48-52 deg.C/h, maintaining for 15-17 h, and cooling to 20-25 deg.C;
(6) surfacing the deposited metal A in the circumferential gap of the hard alloy block in the axial direction, and surfacing the deposited metal B on the deposited metal A; the deposited metal A adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 330-; the deposited metal B adopts full-automatic open arc self-shielded welding surfacing, and the surfacing voltage is as follows: 25-35V, surfacing current: 350-420A, and the moving speed of the overlaying welding is 400-560 mm/min.
Long-term trial shows that the hard alloy block serving as the grinding material cushion part in the squeeze roller sleeve obtained in the embodiment 1-3 is high in strength and hardness, good in wear resistance and not easy to wear, the deposited metal B serving as the main grinding part of the grinding is extremely good in wear resistance and difficult to wear, and after long-term high-strength use, repair welding can be simply carried out on line in a short time even if the deposited metal B is worn.
It will be understood by those skilled in the art that the foregoing is only exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, since any modifications, equivalents and improvements made within the spirit and scope of the invention are deemed to be within the scope and spirit of the invention.
Claims (4)
1. The utility model provides a squeeze roll roller shell in roll squeezer, its characterized in that, squeeze roll roller shell includes parent (1), the outside carbide piece (2) of parent, deposits metal A (3), deposits metal B (4), parent (1) forms through heat treatment after static casting, carbide piece (2) are cast in uniformly on the excircle of parent (1), the axial is the interval neatly arranged of a lot of ground, deposit metal A (3) upward the build-up welding of axial direction in carbide piece (2) circumferential gap, deposit metal B (4) build-up welding and be in deposit metal A (3) above, the average height that deposits metal B (4) is greater than the height of carbide piece (2).
2. The squeeze roll sleeve in the roll squeezer according to claim 1, wherein the deposited metal A adopts full-automatic open arc self-shielded weld overlay welding, and the overlay welding voltage is as follows: 25-35V, surfacing current: 330-.
3. The squeeze roll sleeve in the roll squeezer according to claim 1, wherein the deposited metal B is deposited by full-automatic open arc self-shielded weld overlay welding, and the overlay welding voltage is as follows: 25-35V, surfacing current: 350-420A, and the moving speed of the overlaying welding is 400-560 mm/min.
4. The squeeze roll shell in a roll press of claim 1, wherein the cemented carbide pieces and the deposited metal B are in a zigzag shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330971.3U CN211199365U (en) | 2019-12-23 | 2019-12-23 | Squeeze roll sleeve in roll squeezer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330971.3U CN211199365U (en) | 2019-12-23 | 2019-12-23 | Squeeze roll sleeve in roll squeezer |
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| CN211199365U true CN211199365U (en) | 2020-08-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558664A (en) * | 2022-03-04 | 2022-05-31 | 武汉华材表面科技有限公司 | Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer |
| CN115090370A (en) * | 2022-07-04 | 2022-09-23 | 宁夏特鑫焊接热喷涂有限公司 | Roller shaft of roller press capable of welding and repairing titanium carbide stud |
-
2019
- 2019-12-23 CN CN201922330971.3U patent/CN211199365U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558664A (en) * | 2022-03-04 | 2022-05-31 | 武汉华材表面科技有限公司 | Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer |
| CN115090370A (en) * | 2022-07-04 | 2022-09-23 | 宁夏特鑫焊接热喷涂有限公司 | Roller shaft of roller press capable of welding and repairing titanium carbide stud |
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Denomination of utility model: Extrusion roll sleeve in roller press Effective date of registration: 20211221 Granted publication date: 20200807 Pledgee: Zhejiang Lanxi Yueshang Village Bank Co.,Ltd. Yongchang sub branch Pledgor: ZHEJIANG LIANCHUANG WELDING TECHNOLOGY CO.,LTD. Registration number: Y2021330002565 |