CN114669362A - Roller press roller sleeve of roller surface full surface stud and manufacturing method thereof - Google Patents
Roller press roller sleeve of roller surface full surface stud and manufacturing method thereof Download PDFInfo
- Publication number
- CN114669362A CN114669362A CN202210352277.5A CN202210352277A CN114669362A CN 114669362 A CN114669362 A CN 114669362A CN 202210352277 A CN202210352277 A CN 202210352277A CN 114669362 A CN114669362 A CN 114669362A
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- China
- Prior art keywords
- stud
- roller
- brazing alloy
- wear
- circular
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
Abstract
The invention relates to a roller press roller sleeve of a roller surface full face stud and a manufacturing method thereof, which are remarkably characterized in that: the roller press roller sleeve of the full-surface stud consists of four parts, namely a roller sleeve base body, studs distributed on the roller surface, brazing alloy connected with the studs and a cylinder body made of a thin-wall steel plate used for installing and fixing the studs and preventing the loss of brazing alloy liquid.
Description
Technical Field
The invention discloses a roller shell of a roller press with full surface studs on the roller surface and a manufacturing method thereof, relates to the design of a wear-resistant layer of the roller shell of the roller press for powder breaking and the manufacturing method thereof, and belongs to the technical field of metal material forming and control.
Background
The wear resistance of the roll shell of the roll squeezer for casting the hard alloy stud is determined by the proportion of the sum of the cross sections of the stud to the area of the roll surface, namely the surface density of the stud, the restriction of the existing embedded stud arrangement structure design and the embedded casting process technology, the heat exchange balance restriction of the surface density of the stud due to the stud heat capacity and the overheating heat capacity of the molten steel amount flowing into the gap between the studs, the surface density of the stud has a critical surface density, namely the maximum surface density, the critical area density is the maximum stud area density which can completely fill gaps among studs by molten steel under the auxiliary conditions of no external field force such as centrifugal force, vibration, additional preheating and electromagnetic field, the critical density of stud imbedding without external field force cannot reach 50%, the wear-resisting property of a roller surface wear-resisting layer of a roller sleeve is insufficient, the wear-resisting property of the roller sleeve of the imbedding stud is improved, the wear-resisting layer needs to be built up in the gaps among the studs, and regular surfacing maintenance is needed.
The invention relates to a roller press roller sleeve of a roller surface full-face stud and a manufacturing method thereof, wherein the roller press roller sleeve of the roller surface full-face stud is a roller press roller sleeve with a roller surface which is tightly connected and distributed on the whole roller sleeve roller surface by a rectangular stud, the studs are in braze welding connection, the wear resistance of the roller press roller sleeve of the roller surface full-face stud is far higher than that of an embedded stud roller sleeve with the critical surface density lower than 50%, and the surfacing maintenance is not needed, so that the service life of the roller sleeve is prolonged, and the powder breaking efficiency of the roller press and the working rate of the roller press are improved.
Disclosure of Invention
The invention relates to a roller press roller sleeve of a roller surface full surface stud and a manufacturing method thereof, the roller press roller sleeve of the roller surface full surface stud comprises a roller sleeve substrate and closely connected rectangular studs distributed on the roller surface, the cylinder body is made of brazing alloy for connecting the stud and thin-wall steel plate for installing and fixing the stud and preventing the loss of brazing alloy liquid, the brazing alloy plate between the stud and the stud is heated by utilizing the overheating heat capacity and the solidification heat capacity of molten steel, the brazing alloy is melted, the stud and the stud are connected in a brazing mode to form a roller sleeve wear-resistant layer whole, the molten steel for casting a base body between the conical cone-shaped body at the tail of the stud and the base body is fused on the surface of the conical cone-shaped body of the stud to form a roller press roller sleeve for forming the roller-surface full-face stud in a metallurgical combination mode, the conical cone at the tail of the stud is designed to improve the combination strength between the stud and the base body, the fixing force of the base body to the stud is improved, and the stress field between the stud and the base body is balanced.
The stud is in a shape structure consisting of a wear-resistant main body at the head and a conical body for connecting a base body of the cast-in stud at the tail; the shape and structure of the wear-resistant main body are as follows: the roller sleeve is a fan-shaped cylindrical body which is equal in height in the direction of a bus of the roller sleeve and is in a shape of a fan-shaped sector of a circular roller sleeve wear-resistant layer with a certain thickness formed by closely connecting and arranging studs on a surface which is vertical to the bus;
the conical cone-shaped structure for the cast-in stud connecting base body is as follows: the embedded stud is connected with a conical body which is connected with the base body, is in fillet transition connection with the fan-shaped cylindrical body of the stud wear-resistant main body and has an included angle of 40-70 degrees, and the top of the conical body is a spherical crown body;
the cylinder made of the thin-wall steel plate for installing and fixing the stud and preventing the loss of the brazing alloy liquid is a cylinder with the outer diameter of a roller sleeve made of the thin-wall steel plate with the wall thickness of 1 mm-4 mm, two layers of annular steel plates with the radial size being 5 mm-10 mm larger than the length of a wear-resistant main body of the stud are welded at the bottom of the cylinder, the distance between the two layers of annular steel plates is the machining allowance of the lower end face of the roller sleeve, the bottom layer of annular steel plate is a steel plate supported on a casting surface, the annular steel plate above the bottom layer of annular steel plate, namely the annular steel plate on the upper layer of the bottom part, is used for preventing the loss of the brazing alloy liquid at the bottom part, and the top part is welded with the bottom part in a symmetrical distribution mode after the installation of the fixing stud and the brazing alloy plate, the circular steel plates are the same in size, the circular steel plate on the lower layer of the top is used for preventing top brazing alloy liquid and molten steel from being mixed, and the distance between the two layers of circular steel plates on the top is the machining allowance of the upper end face of the roller sleeve.
The invention relates to a roller press roller sleeve with a roller surface full surface stud and a manufacturing method thereof, wherein the specific implementation method comprises the following steps:
1) on the inner peripheral surface of the cylinder made of the thin-wall steel plate for installing and fixing the stud and preventing the loss of the brazing alloy liquid, a brazing alloy plate which is 0.2mm to 1mm thick and has a melting point lower than that of the brazing alloy for brazing the circumferential surface of the wear-resistant main body of the stud is laid and fixed in close contact with the steel plate, and the brazing alloy plate is used for solidifying and feeding the brazing alloy with higher melting point on the circumferential surface of the wear-resistant main body of the stud;
2) placing an integral or spliced annular brazing alloy plate with the same size as the annular steel plate and the thickness of 0.2mm to 1mm on the annular steel plate on the upper layer of the bottom;
3) placing a circle of stud of the brazing alloy plate with the arc-shaped end face of the stud wear-resistant main body tightly attached to the inner surface of the cylinder on the circular brazing alloy plate, tightly clamping a rectangular brazing alloy plate with the thickness of 0.2mm to 1mm, the width of the rectangular brazing alloy plate is the same as the size of the stud in the bus direction, and the length of the rectangular brazing alloy plate is 5mm to 10mm larger than the length of the stud wear-resistant main body between the studs, clamping a circular brazing alloy plate between every two layers of studs, arranging and fixing the studs and the brazing alloy plates layer by layer to the top of the roller sleeve according to the method, placing a layer of circular brazing alloy plate with the thickness of 0.2mm to 1mm on the top stud, tightly attaching the circular brazing alloy plate on the lower layer at the top to the circular brazing alloy plate and welding the circular brazing alloy plate to the cylinder, finally welding the circular steel plate at the top, and completely forming the roller sleeve wear-resistant layer body of the roller sleeve which utilizes the overheating heat capacity and the solidification heating brazing roller surface of molten steel to be poured, a circular and rectangular brazing alloy plate with the length of the stud wear-resistant main body being 5mm to 10mm is grown out and used for supplementing brazing liquid between studs;
4) and placing the roller press roller sleeve wear-resistant layer body of the roller press roller sleeve which is formed to be poured and is heated and brazed by utilizing the overheating heat capacity and the solidification heat capacity of the molten steel into a cavity of the casting roller sleeve, and obtaining the roller press roller sleeve of the roller surface full surface stud after the pouring molten steel is solidified.
Claims (12)
1. The invention relates to a roller press roller sleeve of a roller surface full face stud and a manufacturing method thereof, which are remarkably characterized in that: the roller press roller sleeve of the roller surface full face stud consists of four parts, namely a roller sleeve base body, a stud fully distributed on the roller surface, brazing alloy connected with the stud and a cylinder body made of a thin-wall steel plate used for installing and fixing the stud and preventing the loss of brazing alloy liquid, wherein the brazing alloy plate between the stud and the stud is heated by using the overheating heat capacity and the solidification heat capacity of molten steel, the brazing alloy is melted, the stud and the stud are connected in a brazing mode to form a roller sleeve wear-resistant layer whole, the molten steel of a casting base body is fused between a conical body at the tail part of the stud and the base body to form the roller press roller sleeve of the roller surface full face stud through metallurgical combination on the surface of the conical body of the stud, the conical body at the tail part of the stud is designed to improve the bonding strength between the stud and the base body, the holding force of the base body to the stud and balance the stress field between the stud and the base body;
the shape structure of the stud consists of a fan-shaped cylindrical body of the head wear-resistant main body and a conical body for the embedded stud connecting base body at the tail part; the shape and structure of the wear-resistant main body are as follows: the surface of the bus which is equal in height and vertical to the bus is a fan-shaped columnar body which is formed by closely connecting and arranging studs to form a circular roller sleeve wear-resistant layer with a certain thickness;
the conical cone-shaped structure for the cast-in stud connecting base body is as follows: the cast-in stud is connected with a conical body which is connected with the base body in a fillet transition way and has an included angle of 40-70 degrees with the fan-shaped cylindrical body of the wear-resistant main body, and the top of the conical body is a spherical crown-shaped body;
the cylinder made of the thin-wall steel plate for installing and fixing the stud and preventing the loss of the brazing alloy liquid is a cylinder with the outer diameter of a roller sleeve made of the thin-wall steel plate with the wall thickness of 1 mm-4 mm, two layers of annular steel plates with the radial size being 5 mm-10 mm larger than the length of a wear-resistant main body of the stud are welded at the bottom of the cylinder, the distance between the two layers of annular steel plates is the machining allowance of the lower end face of the roller sleeve, the bottom layer of annular steel plate is a steel plate supported on a casting surface, the annular steel plate above the bottom layer of annular steel plate, namely the annular steel plate on the upper layer of the bottom part, is used for preventing the loss of the brazing alloy liquid at the bottom part, and the top part is welded with the bottom part in a symmetrical distribution mode after the installation of the fixing stud and the brazing alloy plate, the circular steel plates are the same in size, the circular steel plate on the lower layer of the top is used for preventing top brazing alloy liquid and molten steel from being mixed, and the distance between the two layers of the circular steel plates on the top is the machining allowance of the upper end face of the roller sleeve;
the invention relates to a roller press roller sleeve with a roller surface full surface stud and a manufacturing method thereof, wherein the specific implementation method comprises the following steps:
1) on the inner surface of the cylinder made of the thin-wall steel plate for installing and fixing the stud and preventing the loss of the brazing alloy liquid, a brazing alloy plate which is used for fixing the brazing alloy with the thickness of 0.2mm to 1mm and has the melting point lower than that of the brazing alloy for brazing the circumferential surface of the wear-resistant main body of the stud is laid and fixed in a manner of being close to the steel plate, and the brazing alloy with the higher melting point of the circumferential surface of the wear-resistant main body of the brazing stud is solidified and fed;
2) placing an integral or spliced annular brazing alloy plate with the same size as the annular steel plate and the thickness of 0.2mm to 1mm on the annular steel plate on the upper layer of the bottom;
3) placing a circle of stud of the brazing alloy plate with the arc-shaped end face of the stud wear-resistant main body clinging to the inner surface of the cylinder on the circular brazing alloy plate, tightly clamping a rectangular brazing alloy plate with the thickness of 0.2mm to 1mm, the width of the rectangular brazing alloy plate is the same as the size of the stud in the bus direction, and the length of the rectangular brazing alloy plate is 5mm to 10mm larger than the length of the stud wear-resistant main body between the studs, clamping a circular brazing alloy plate between every two layers of studs, arranging and fixing the studs and the brazing alloy plates layer by layer to the top of the roller sleeve according to the method, placing a layer of circular brazing alloy plate with the thickness of 0.2mm to 1mm on the top stud, clinging the circular brazing alloy plate at the lower layer of the top to the circular brazing alloy plate to the cylinder, finally welding the circular steel plate at the top, and completely forming the roller sleeve wear-resistant layer body to be poured by utilizing the overheat heat capacity and the solidification heating of molten steel to braze the full-face of the roller surface of the roller, a circular and rectangular brazing alloy plate with the length of the stud wear-resistant main body being 5mm to 10mm is grown out and used for supplementing brazing liquid between studs;
4) and placing the roller press roller sleeve wear-resistant layer body of the roller press roller sleeve which is formed to be poured and is heated and brazed by utilizing the overheating heat capacity and the solidification heat capacity of the molten steel into a cavity of the casting roller sleeve, and obtaining the roller press roller sleeve of the roller surface full surface stud after the pouring molten steel is solidified.
2. The stud of the roll mantle of the roll-surface full-face stud according to claim 1, being a cemented carbide stud.
3. The stud of the roller press roller shell of a roller surface full face stud according to claim 1 is a steel bonded cemented carbide stud.
4. The roller press roller shell of claim 1, wherein the studs of the roller shell of the roller press are 30-50% of the roller surface, the middle part of the roller surface is made of hard alloy studs, and the other symmetrical parts on two sides are made of steel-bonded hard alloy studs, so that saddle-shaped abrasion of the roller surface of the roller shell is reduced, the abrasion resistance life of the roller shell is prolonged, and the powder breaking processing efficiency is improved.
5. The stud of the roll mantle of the roll top full surface stud of claim 1, wherein the thermal capacity of the molten steel due to overheating and the thermal capacity of the solidified material heats the brazing alloy sheet between the stud and the stud, and the brazing alloy is melted to form the entire wear-resistant layer of the roll mantle by brazing between the stud and the stud.
6. The method of claim 1, wherein the molten steel for casting the base between the conical taper at the tail of the stud and the base is fused with the conical taper of the stud to form a roller press roller sleeve for forming the roller-surface full-surface stud, and the conical taper at the tail of the stud is designed to improve the bonding strength between the stud and the base, improve the retaining force of the base on the stud and balance the stress field between the stud and the base.
7. The stud of claim 1 wherein the shape is comprised of a fan-shaped cylinder of the head wear resistant body and a cone-shaped cone of the tail cast-in stud connection base.
8. The stud wear resistant body shape structure of claim 4 is: the surface of the bus in the direction of the bus is a fan-shaped cylindrical body which is equal in height and vertical to the bus and is in the shape of a fan-shaped cylindrical body of which studs are tightly connected and arranged to form a circular roller sleeve wear-resistant layer with a certain thickness.
9. The conical cone-shaped structure of the stud tail of claim 4 is: the cast-in stud is connected with a conical body which is connected with the base body in a fillet transition way and has an included angle of 40-70 degrees with the fan-shaped cylindrical body of the wear-resistant main body, and the top of the conical body is a spherical crown-shaped body.
10. The thin-walled steel sheet for installing and fixing a stud according to claim 1, wherein the thin-walled steel sheet is a thin-walled steel sheet having a thickness of 1mm to 4mm and having an outer diameter of a sleeve, the bottom of the cylinder is welded with two layers of circular steel plates with the radial dimension larger than the length of a stud wear-resistant main body by 5mm to 10mm, the distance between the two layers of circular steel plates is the machining allowance of the lower end face of the roller sleeve, the bottom layer of the circular steel plate is a steel plate supported on the casting surface, the circular steel plate above the bottom layer of the circular steel plate is the circular steel plate on the upper layer of the bottom and is used for preventing the loss of bottom brazing alloy liquid, the top of the cylinder is welded with the circular steel plates which are symmetrically distributed with the bottom and have the same size after the stud and the brazing alloy plate are installed, the circular steel plate on the lower layer of the top is used for preventing the top brazing alloy liquid and molten steel from mixing, and the distance between the two layers of circular steel plates on the top is the machining allowance of the upper end face of the roller sleeve.
11. The cylinder of claim 1, wherein a brazing alloy sheet having a thickness of 0.2mm to 1mm and a melting point lower than that of a brazing alloy used for brazing the circumferential surface of the wear-resistant body of the stud is laid on the inner surface of the cylinder made of a thin-walled steel sheet for attaching and fixing the stud and preventing the loss of the brazing alloy liquid, and the brazing alloy sheet is solidified and fed to the circumferential surface of the wear-resistant body of the stud with the higher melting point, thereby reducing the brazing defects between the wear-resistant bodies of the stud.
12. The invention relates to a roller press roller sleeve with full surface studs on the roller surface and a manufacturing method thereof, which are suitable for a roller sleeve of a sand making machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352277.5A CN114669362B (en) | 2022-04-05 | 2022-04-05 | Roller sleeve of roller press with full-face column nails on roller surface and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352277.5A CN114669362B (en) | 2022-04-05 | 2022-04-05 | Roller sleeve of roller press with full-face column nails on roller surface and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114669362A true CN114669362A (en) | 2022-06-28 |
| CN114669362B CN114669362B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210352277.5A Active CN114669362B (en) | 2022-04-05 | 2022-04-05 | Roller sleeve of roller press with full-face column nails on roller surface and manufacturing method thereof |
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Citations (6)
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|---|---|---|---|---|
| EP0699479A1 (en) * | 1994-09-05 | 1996-03-06 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Wear resistant surface coating for rollers of high pressure roller mills for pressure milling of granular material |
| JP2001332254A (en) * | 2000-03-13 | 2001-11-30 | Canon Inc | Manufacturing method for electrode material of lithium secondary battery, electrode structure of the lithium secondary battery and the lithium secondary battery and manufacturing method therefor |
| US20090224089A1 (en) * | 2008-03-07 | 2009-09-10 | Pallmann Maschinenfabrik Gmbh & Co. Kg | Rotor and device for the comminution of input material |
| DE102011054191A1 (en) * | 2011-10-05 | 2013-04-11 | Betek Gmbh & Co. Kg | Crusher roller for roll crusher, has roller body which comprises receptacle at its outer circumference, where tool carrier is received in receptacle in replaceable manner |
| CL2017002270A1 (en) * | 2016-11-04 | 2018-03-09 | Takraf Gmbh | Crushing plant in which the wall of the housing has at least one recess configured for the housing of the displacement device, so that the displacement device is integrated into the wall of the housing within its width, so that it is at less partially arranged in the recess. |
| CN113578456A (en) * | 2021-08-04 | 2021-11-02 | 武汉华材表面科技有限公司 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
-
2022
- 2022-04-05 CN CN202210352277.5A patent/CN114669362B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0699479A1 (en) * | 1994-09-05 | 1996-03-06 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Wear resistant surface coating for rollers of high pressure roller mills for pressure milling of granular material |
| JP2001332254A (en) * | 2000-03-13 | 2001-11-30 | Canon Inc | Manufacturing method for electrode material of lithium secondary battery, electrode structure of the lithium secondary battery and the lithium secondary battery and manufacturing method therefor |
| US20090224089A1 (en) * | 2008-03-07 | 2009-09-10 | Pallmann Maschinenfabrik Gmbh & Co. Kg | Rotor and device for the comminution of input material |
| DE102011054191A1 (en) * | 2011-10-05 | 2013-04-11 | Betek Gmbh & Co. Kg | Crusher roller for roll crusher, has roller body which comprises receptacle at its outer circumference, where tool carrier is received in receptacle in replaceable manner |
| CL2017002270A1 (en) * | 2016-11-04 | 2018-03-09 | Takraf Gmbh | Crushing plant in which the wall of the housing has at least one recess configured for the housing of the displacement device, so that the displacement device is integrated into the wall of the housing within its width, so that it is at less partially arranged in the recess. |
| CN113578456A (en) * | 2021-08-04 | 2021-11-02 | 武汉华材表面科技有限公司 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
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| Title |
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| 苏春霞;徐相斌;: "辊压机冷镶柱钉辊套的失效分析", 新世纪水泥导报, no. 01, pages 51 - 52 * |
| 高少辉;侯国锋;王烨;回胜科;石国平;: "TRP180-140辊压机生料终粉磨系统的优化", 水泥技术, no. 02, pages 60 - 63 * |
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| CN114669362B (en) | 2023-09-01 |
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