CN110846582A - Squeeze roller sleeve in roller press and preparation method thereof - Google Patents
Squeeze roller sleeve in roller press and preparation method thereof Download PDFInfo
- Publication number
- CN110846582A CN110846582A CN201911337300.8A CN201911337300A CN110846582A CN 110846582 A CN110846582 A CN 110846582A CN 201911337300 A CN201911337300 A CN 201911337300A CN 110846582 A CN110846582 A CN 110846582A
- Authority
- CN
- China
- Prior art keywords
- deposited metal
- roll
- hard alloy
- metal
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 100
- 239000002184 metal Substances 0.000 claims abstract description 100
- 239000000956 alloy Substances 0.000 claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 238000005266 casting Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 22
- 244000035744 Hura crepitans Species 0.000 claims description 20
- 229910052748 manganese Inorganic materials 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 20
- 229910052804 chromium Inorganic materials 0.000 claims description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 239000004568 cement Substances 0.000 description 15
- 239000011651 chromium Substances 0.000 description 14
- 238000000227 grinding Methods 0.000 description 13
- 239000010955 niobium Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910001339 C alloy Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
- B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
- B23K9/048—Built-up welding on three-dimensional surfaces on surfaces of revolution on cylindrical surfaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to the technical field of squeeze rollers and discloses a squeeze roller sleeve in a roller press and a preparation method thereof. The squeeze roll sleeve in the roll squeezer comprises a parent body, hard alloy blocks, deposited metal A and deposited metal B, wherein the hard alloy blocks, the deposited metal A and the deposited metal B are arranged outside the parent body in a spaced and regular mode in the axial direction, the parent body is formed by static casting and then heat treatment, the hard alloy blocks are uniformly cast on the outer circle of the parent body in an embedded mode, the deposited metal A is welded in the circumferential gap of the hard alloy blocks in the axial direction in a build-up mode, the deposited metal B is welded on the upper surface of the deposited metal A in a build-up mode, and the average height of the deposited metal B is larger than the height of the hard alloy blocks. Compared with the traditional roll sleeve, the roll sleeve of the extrusion roll has the characteristics of greatly increased wear resistance, prolonged service life, impact resistance and the like, can greatly improve the service quality and service life of the roll sleeve of the extrusion roll, enables the roll sleeve of the extrusion roll to be in a high-efficiency state all the time, and saves cost.
Description
Technical Field
The invention relates to the technical field of squeeze rollers, in particular to a squeeze roller sleeve in a roller press and a preparation method thereof.
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.
Disclosure of Invention
The invention provides a squeeze roller sleeve in a roller press and a preparation method thereof in order to overcome the defects of the background technology. The squeeze roll sleeve in the roll squeezer has unique appearance structure and high wear resistance, the service life is greatly prolonged, and when the squeeze roll sleeve is used for a long time and high strength, only the easily worn part needs to be simply repaired and welded on line in a short time in the later period, so that the cost of manpower and material resources is saved.
In order to achieve the purpose of the invention, the squeeze roll sleeve in the roll squeezer comprises a parent body, hard alloy blocks outside the parent body, deposited metal A and deposited metal B, wherein the parent body is formed by static casting and then heat treatment, the hard alloy blocks are uniformly cast on the outer circle of the parent body in an embedding way and are arranged regularly at intervals in the axial direction, the deposited metal A is welded in the circumferential gap of the hard alloy blocks in an overlaying way in the axial direction, the deposited metal B is welded on the deposited metal A in an overlaying way, and the average height of the deposited metal B is greater than the height of the hard alloy blocks.
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.
In another aspect, the present invention also provides a method for preparing the squeeze roll sleeve in the roll squeezer, which comprises the following steps:
(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 extrusion roller sleeve in the roller press has the following advantages:
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. compared with the traditional roll sleeve, the roll sleeve of the extrusion roll has the characteristics of greatly increased wear resistance, prolonged service life, impact resistance and the like, can greatly improve the service quality and service life of the roll sleeve of the extrusion roll, enables the roll sleeve of the extrusion roll to be in a high-efficiency state all the time, and saves cost.
Drawings
FIG. 1 is a front view of the surface structure of a roll shell of an extrusion roll according to embodiments 1-3 of the present invention;
FIG. 2 is a top view of the surface structure of the roll shell of the squeeze roll of examples 1-3 of this 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 apparent, the present invention is described in further 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 illustrative of the present invention and is not to be construed as limiting 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.
Further, 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) outside the parent body, deposited metal A (3) and deposited metal B (4), 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), is axially spaced and orderly arranged one by one, and is welded in the circumferential gap of the hard alloy block (2) in the axial direction of the deposited metal A (3), the deposited metal B (4) is welded on the deposited metal A (3), the average height of the deposited metal B (4) is greater 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) outside the parent body, deposited metal A (3) and deposited metal B (4), 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), is axially spaced and orderly arranged one by one, and is welded in the circumferential gap of the hard alloy block (2) in the axial direction of the deposited metal A (3), the deposited metal B (4) is welded on the deposited metal A (3), the average height of the deposited metal B (4) is greater 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) outside the parent body, deposited metal A (3) and deposited metal B (4), 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), is axially spaced and orderly arranged one by one, and is welded in the circumferential gap of the hard alloy block (2) in the axial direction of the deposited metal A (3), the deposited metal B (4) is welded on the deposited metal A (3), the average height of the deposited metal B (4) is greater 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, which is intended to cover any variations, equivalents, or improvements therein, which fall within the spirit and scope of the invention.
Claims (10)
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 of the roll squeezer according to claim 1, wherein the matrix 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.
3. The squeeze roll sleeve in the roll squeezer according to claim 1, wherein the cemented carbide 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.
4. The squeeze roll sleeve of the roll squeezer according to claim 1, wherein 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.
5. The squeeze roll sleeve of the roll squeezer according to claim 1, wherein 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.
6. 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-.
7. 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.
8. 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.
9. Method for producing a roll shell of a squeeze roll in a roll press according to any of claims 1 to 8, characterized in that it comprises the following steps:
(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.
10. The method for preparing the roll shell of the squeeze roll in the roll squeezer according to claim 9, wherein the melting temperature in the step (1) is 1550-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337300.8A CN110846582A (en) | 2019-12-23 | 2019-12-23 | Squeeze roller sleeve in roller press and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337300.8A CN110846582A (en) | 2019-12-23 | 2019-12-23 | Squeeze roller sleeve in roller press and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110846582A true CN110846582A (en) | 2020-02-28 |
Family
ID=69610338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337300.8A Withdrawn CN110846582A (en) | 2019-12-23 | 2019-12-23 | Squeeze roller sleeve in roller press and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110846582A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760636A (en) * | 2020-07-03 | 2020-10-13 | 浙江申轮水泥机械制造有限公司 | Roll sleeve of roll squeezer and manufacturing process thereof |
| CN112317056A (en) * | 2020-09-03 | 2021-02-05 | 常熟市电力耐磨合金铸造有限公司 | Roll sleeve of casting roll press and preparation method thereof |
| CN113926994A (en) * | 2021-09-27 | 2022-01-14 | 郑州机械研究所有限公司 | Preparation method of wear-resistant extrusion roller |
| CN114086068A (en) * | 2021-11-18 | 2022-02-25 | 齐鲁工业大学 | High-wear-resistance grinding roller and preparation method thereof |
| 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 |
| CN115110011A (en) * | 2021-03-22 | 2022-09-27 | 江苏润晨新材料科技有限公司 | Preparation method of low-carbon high-toughness high-speed steel |
| CN115319097A (en) * | 2022-07-25 | 2022-11-11 | 湖北秦鸿新材料股份有限公司 | Preparation method of roller sleeve and roller sleeve |
| CN117399568A (en) * | 2023-12-14 | 2024-01-16 | 山东硕源工业机械设备有限公司 | Large wear-resistant embedded hard alloy roller sleeve and one-step molding manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090218429A1 (en) * | 2006-03-04 | 2009-09-03 | Alexander Hagedorn | Hard elements for the autogenous wear protection of roller surfaces |
| CN105274425A (en) * | 2015-10-28 | 2016-01-27 | 中钢集团邢台机械轧辊有限公司 | High-alloy roller for front stage of hot continuous finish rolling and preparation method thereof |
| CN105964983A (en) * | 2016-07-05 | 2016-09-28 | 常熟市电力耐磨合金铸造有限公司 | Production process of compound type imbedding squeeze roller |
| CN108202209A (en) * | 2016-12-19 | 2018-06-26 | 查道球 | A kind of preparation method of high abrasion shock resistance roller surface lining plate and compression roller |
| CN108687462A (en) * | 2017-04-11 | 2018-10-23 | 湖北宜飞复合新材料有限公司 | A kind of anti abrasive flux-cored wire |
| CN110252463A (en) * | 2019-06-24 | 2019-09-20 | 郑州机械研究所有限公司 | A kind of abrasion-proof structure and preparation method thereof being easily repaired |
-
2019
- 2019-12-23 CN CN201911337300.8A patent/CN110846582A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090218429A1 (en) * | 2006-03-04 | 2009-09-03 | Alexander Hagedorn | Hard elements for the autogenous wear protection of roller surfaces |
| CN105274425A (en) * | 2015-10-28 | 2016-01-27 | 中钢集团邢台机械轧辊有限公司 | High-alloy roller for front stage of hot continuous finish rolling and preparation method thereof |
| CN105964983A (en) * | 2016-07-05 | 2016-09-28 | 常熟市电力耐磨合金铸造有限公司 | Production process of compound type imbedding squeeze roller |
| CN108202209A (en) * | 2016-12-19 | 2018-06-26 | 查道球 | A kind of preparation method of high abrasion shock resistance roller surface lining plate and compression roller |
| CN108687462A (en) * | 2017-04-11 | 2018-10-23 | 湖北宜飞复合新材料有限公司 | A kind of anti abrasive flux-cored wire |
| CN110252463A (en) * | 2019-06-24 | 2019-09-20 | 郑州机械研究所有限公司 | A kind of abrasion-proof structure and preparation method thereof being easily repaired |
Non-Patent Citations (1)
| Title |
|---|
| 崔忠圻: "《热加工技术简明手册热处理分册》", 哈尔滨工业大学出版社, pages: 58 - 59 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760636A (en) * | 2020-07-03 | 2020-10-13 | 浙江申轮水泥机械制造有限公司 | Roll sleeve of roll squeezer and manufacturing process thereof |
| CN112317056A (en) * | 2020-09-03 | 2021-02-05 | 常熟市电力耐磨合金铸造有限公司 | Roll sleeve of casting roll press and preparation method thereof |
| CN115110011A (en) * | 2021-03-22 | 2022-09-27 | 江苏润晨新材料科技有限公司 | Preparation method of low-carbon high-toughness high-speed steel |
| CN113926994A (en) * | 2021-09-27 | 2022-01-14 | 郑州机械研究所有限公司 | Preparation method of wear-resistant extrusion roller |
| CN114086068A (en) * | 2021-11-18 | 2022-02-25 | 齐鲁工业大学 | High-wear-resistance grinding roller and preparation method thereof |
| CN114086068B (en) * | 2021-11-18 | 2022-07-08 | 齐鲁工业大学 | High-wear-resistance grinding roller and preparation method thereof |
| 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 |
| CN115319097A (en) * | 2022-07-25 | 2022-11-11 | 湖北秦鸿新材料股份有限公司 | Preparation method of roller sleeve and roller sleeve |
| CN117399568A (en) * | 2023-12-14 | 2024-01-16 | 山东硕源工业机械设备有限公司 | Large wear-resistant embedded hard alloy roller sleeve and one-step molding manufacturing method thereof |
| CN117399568B (en) * | 2023-12-14 | 2024-02-23 | 山东硕源工业机械设备有限公司 | Large wear-resistant embedded hard alloy roller sleeve and one-step molding manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110846582A (en) | Squeeze roller sleeve in roller press and preparation method thereof | |
| WO2017035921A1 (en) | Manufacturing method for detachable ceramic alloy composite grinding roller | |
| CN103320710B (en) | High-toughness high-speed steel composite roll | |
| CN102534405B (en) | High manganese steel and preparation method thereof | |
| CN211199365U (en) | Squeeze roll sleeve in roll squeezer | |
| CN101190481A (en) | Deposit welding rod containing rare earth and production method | |
| CN105127205A (en) | Large bushing roll used for producing plate strips and preparation method thereof | |
| CN103014532A (en) | High-abrasion-resistance composite roller and preparation method thereof | |
| CN108479954A (en) | A kind of wearing composite material blower mill beater plate | |
| CN105457722A (en) | Bimetal composite type abrasion-resistant liner plate and manufacturing method | |
| CN100408189C (en) | Method for producing medium chromium tungsten-containing composite anti-wear roll ring | |
| CN100560766C (en) | A kind of melt treating method that is used for the high-vanadium high-speed steel roller material of all kinds of rolling mills | |
| CN101386963A (en) | Production method of low carbon steel ball | |
| CN103741010A (en) | Method for manufacturing cast iron alloy roller ring with high wear resistance | |
| CN100382892C (en) | Method for producing high chromium tungsten-containing composite anti-wear roll ring | |
| CN115780025A (en) | Grinding roller of vertical mill and preparation method thereof | |
| CN104928589A (en) | High-manganese-steel lining plate for ball mill and manufacturing method thereof | |
| CN102766745A (en) | Heat treatment method for high-speed steel for rollers | |
| CN104988426A (en) | High-manganese steel hammer for breaker and manufacturing method of hammer | |
| CN108015452A (en) | Bead Welding Rod of Wear-Resisting Alloy, production method and the star of reparation tooth and grate plate | |
| CN101708539B (en) | Manufacture method of multi-element chilled cast iron anti-wear roller ring | |
| CN101722290B (en) | Preparation method of multicomponent indefinite chilled ductile iron wear resistance roller | |
| CN111304546A (en) | Super-strength wear-resistant alloy and preparation method thereof | |
| CN110801907A (en) | High-wear-resistance composite casting hammer disc and preparation process thereof | |
| CN102766825A (en) | Preparation method of high-speed steel for roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200228 |