CN113578456A - High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof - Google Patents
High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof Download PDFInfo
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- CN113578456A CN113578456A CN202110893157.1A CN202110893157A CN113578456A CN 113578456 A CN113578456 A CN 113578456A CN 202110893157 A CN202110893157 A CN 202110893157A CN 113578456 A CN113578456 A CN 113578456A
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- stud
- brazing
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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
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Abstract
The invention discloses a high-density stud roller sleeve of an embedded sheath brazing stud row, which consists of sheath brazing stud rows and a roller sleeve substrate for embedding and fixing the sheath brazing stud rows, wherein the roller sleeve surface layer is uniformly distributed and embedded with annular sheath brazing stud rows which are linearly arranged, have the same length as the roller sleeve or circumferentially arranged and the same outer diameter as the roller sleeve, gap intervals with the thickness not more than the thickness of the sheath brazing stud rows are arranged among the sheath brazing stud rows, the ratio of the sum of the occupied areas of all studs on the circumferential surface of the roller sleeve cylinder to the area of the roller sleeve roller surface is more than fifty percent, namely the stud density is more than 50 percent. The manufacturing method of the high-density stud roller sleeve of the embedded sheath brazing stud row comprises the following steps: and uniformly distributing and fixing the sheathed brazing column nail rows on the casting surface of the outer wall of the roller sleeve casting cavity, wherein the gap interval which is not more than the thickness of the sheathed brazing column nail rows is reserved between the sheathed brazing column nail rows, the molten steel enters the gaps between the column nail rows after the molten steel is poured, and after the molten steel is cooled and solidified, the sheathed brazing column nail rows are embedded, cast and fixedly held on the surface layer of the roller sleeve.
Description
Technical Field
The invention discloses a high-density stud roller sleeve of a brazed stud row of an insert casting sleeve and a manufacturing method thereof, relates to the manufacturing of composite material wear-resistant parts, and belongs to the technical field of casting.
Background
The roller sleeve is the most important wear-resistant part in the high-efficiency energy-saving rolling flour mill, the rolling flour mill crushes and crushes materials by performing high stress extrusion on the materials between rollers through the opposite rotation of the pair of roller sleeves, and the roller surface of the roller sleeve bears high alternating pressure stress, abrasive wear of high-hardness materials and cutting wear of sharp corners of high-strength materials with larger sizes, so the wear resistance of the roller surface of the roller sleeve is very important. The existing roller sleeve technology application of the dispersed cast-in steel bond hard alloy stud is that a single stud of the stud is independently cast in the surface layer of the roller sleeve according to a certain arrangement rule, in order to improve the wear resistance of the surface of the roller sleeve, a hard surface wear-resistant layer is built up between the dispersed cast-in studs, but the wear resistance of a hard surface build-up welding layer is far inferior to that of the steel bond hard alloy stud, and after the roller sleeve is used for a period of time and the hard surface build-up welding layer is completely worn, the roller sleeve needs to be built up again to improve the service life of the roller sleeve.
The reason that the wear resistance of the roller sleeve of the dispersed cast-in stud is not enough is that the density of the stud is not high, and the main reason that the density of the existing roller sleeve cast-in stud is not high is the fluidity of molten steel, so the process method of the dispersed cast-in stud cannot manufacture the roller sleeve of the high-density stud.
The high-density stud roller sleeve can realize less or no surfacing maintenance in the service period, and when the stud density is higher than 50%, the roller sleeve does not need surfacing; the invention discloses a high-density stud roller sleeve of a brazed stud row of an insert casting sleeve, which comprises the following steps: the roller sleeve is characterized in that a certain number of straight-line strip-shaped sheathing brazing column nail rows with the length consistent with the length of the roller sleeve are arranged along a roller sleeve bus, are circumferentially and uniformly distributed on the surface layer of the roller sleeve, leave gaps with the thickness not more than that of the sheathing brazing column nail rows and are cast in the surface layer of the roller sleeve; or a certain number of circular sheath brazing column nail rows with the outer diameter consistent with that of the roller sheath are axially and uniformly distributed on the surface layer of the roller sheath, gaps with the thickness not more than that of the sheath brazing column nail rows are reserved between the column nail rows, and the gaps are cast on the surface layer of the roller sheath.
Disclosure of Invention
The invention discloses a high-density stud roller sleeve for embedding sheath brazing stud rows, which consists of sheath brazing stud rows and a roller sleeve substrate for embedding and fixing the sheath brazing stud rows, wherein a certain number of sheath brazing stud rows are embedded and cast on the surface layer of the roller sleeve, and the ratio of the total area of all studs on the cylindrical peripheral surface of the roller sleeve to the roller surface area of the roller sleeve is more than fifty percent, namely the stud density is more than 50 percent.
The shape of the sheath brazing column nail row of the high-density column nail roller sleeve of the cast-in sheath brazing column nail row has two forms: the roller sleeve is provided with a straight-line strip-shaped sheathing brazing column nail row arranged along a roller sleeve bus and a sheathing brazing column nail row arranged in a circular ring shape along the roller sleeve circumference; the roller sleeve is characterized in that a certain number of straight-line strip-shaped sheathing brazing column nail rows with the length consistent with the length of the roller sleeve are arranged along a roller sleeve bus, are circumferentially and uniformly distributed on the surface layer of the roller sleeve, leave gaps with the thickness not more than that of the sheathing brazing column nail rows and are cast in the surface layer of the roller sleeve; the roll sleeve is characterized in that a certain number of circular sheath brazing column nail rows with the outer diameters consistent with those of the roll sleeve are axially and uniformly distributed on the surface layer of the roll sleeve, gaps with the thickness not larger than that of the sheath brazing column nail rows are reserved between the column nail rows, and the gaps are cast on the surface layer of the roll sleeve in an embedding mode.
The manufacturing method of the high-density stud roller sleeve of the embedded sheath brazing stud row comprises the following steps: gaps with the thickness not larger than the thickness of the sheathing brazing column nail rows are reserved among the sheathing brazing column nail rows and are uniformly distributed and fixed on a casting surface of the outer wall of the roller sleeve casting cavity, after molten steel is poured, the molten steel enters the gaps among the sheathing brazing column nail rows, after cooling and solidification, the column nail rows are embedded, cast and fixedly held on the surface layer of the roller sleeve, and the column nail arrangement density on the surface of the roller sleeve is larger than 50%.
Drawings
FIG. 1: the structure of the high-stud-density roller sleeve for embedding the cast straight-row strip-shaped sheath braze welding stud row.
In fig. 1: 1: roll shell substrate, 2: the straight-line strip-shaped sheath is sheathed with the rows of the brazing columns.
FIG. 2: the structure schematic diagram of a high stud density roller sleeve of a cast-in circular sheath brazing stud row.
In fig. 2: 1: roll shell substrate, 2: the annular sheath is sleeved with a brazing column nail row.
Claims (4)
1. The invention discloses a high-density stud roller sleeve of a brazed stud row of an embedded sheath and a manufacturing method thereof, which are characterized by comprising the following steps:
1) the high-density stud roller sleeve for embedding and casting the sheath brazing stud rows consists of sheath brazing stud rows and a roller sleeve substrate for embedding and fixing the sheath brazing stud rows, the roller sleeve surface layers are uniformly distributed, and are embedded and cast with circular sheath brazing stud rows which are linearly arranged, have the same length as the roller sleeve or circumferentially arranged and the same outer diameter as the roller sleeve, gap intervals which are not more than the thickness of the sheath brazing stud rows are arranged among the sheath brazing stud rows, and the ratio of the sum of the occupied areas of all studs on the circumferential surface of the roller sleeve cylinder to the roller surface area of the roller sleeve is more than fifty percent, namely the stud density is more than 50 percent;
2) the manufacturing method of the high-density stud roller sleeve of the embedded sheath brazing stud row comprises the following steps: and gap intervals which are not more than the thickness of the sheathing brazing column nail rows are reserved among the sheathing brazing column nail rows and are uniformly distributed and fixed on a casting surface of the outer wall of the roller sleeve casting cavity, after molten steel is poured, the molten steel enters gaps among the column nail rows, and after cooling and solidification, the sheathing brazing column nail rows are embedded, cast and fixedly held on the surface layer of the roller sleeve.
2. According to claim 1, the high density stud sleeves of rows of brazing studs of the casting-in sheath are arranged such that a number of rows of studs in a linear array of sheath brazing are evenly distributed over the circumferential surface of the sleeve.
3. According to claim 1, the high density stud sleeves of the rows of brazing studs of the casting-in sheath are arranged such that a number of circumferentially arranged rows of circumferential studs of the sheath are evenly distributed over the circumferential surface of the sleeve.
4. According to claim 1, the high density stud sleeve of the row of stud pins of the insert casting sheath is such that the range of the gap spacing between the rows of stud pins of the sheath is not greater than the thickness of the row of stud pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893157.1A CN113578456A (en) | 2021-08-04 | 2021-08-04 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110893157.1A CN113578456A (en) | 2021-08-04 | 2021-08-04 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113578456A true CN113578456A (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110893157.1A Pending CN113578456A (en) | 2021-08-04 | 2021-08-04 | High-density stud roller sleeve of brazed stud row of cast-in sheath and manufacturing method thereof |
Country Status (1)
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| CN (1) | CN113578456A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669361A (en) * | 2022-03-31 | 2022-06-28 | 武汉华材表面科技有限公司 | Bimetal wear-resistant roller sleeve with ultrahigh embedded stud surface density and manufacturing method thereof |
| CN114669362A (en) * | 2022-04-05 | 2022-06-28 | 武汉华材表面科技有限公司 | Roller press roller sleeve of roller surface full surface stud and manufacturing method thereof |
| CN114669363A (en) * | 2022-04-05 | 2022-06-28 | 武汉华材表面科技有限公司 | Stud arranging structure of roller press roller sleeve of roller surface full surface stud |
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2021
- 2021-08-04 CN CN202110893157.1A patent/CN113578456A/en active Pending
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669361A (en) * | 2022-03-31 | 2022-06-28 | 武汉华材表面科技有限公司 | Bimetal wear-resistant roller sleeve with ultrahigh embedded stud surface density and manufacturing method thereof |
| CN114669361B (en) * | 2022-03-31 | 2023-09-26 | 武汉华材表面科技有限公司 | Bimetal wear-resistant roller sleeve with ultrahigh imbedding post nail surface density and manufacturing method thereof |
| CN114669362A (en) * | 2022-04-05 | 2022-06-28 | 武汉华材表面科技有限公司 | Roller press roller sleeve of roller surface full surface stud and manufacturing method thereof |
| CN114669363A (en) * | 2022-04-05 | 2022-06-28 | 武汉华材表面科技有限公司 | Stud arranging structure of roller press roller sleeve of roller surface full surface stud |
| CN114669363B (en) * | 2022-04-05 | 2023-09-01 | 武汉华材表面科技有限公司 | Column nail arrangement structure of roller press roller sleeve with full-face column nails on roller surface |
| CN114669362B (en) * | 2022-04-05 | 2023-09-01 | 武汉华材表面科技有限公司 | Roller sleeve of roller press with full-face column nails on roller surface and manufacturing method thereof |
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