CN113774287A - Laser cladding pre-hardened cone crusher lining plate and processing technology - Google Patents

Laser cladding pre-hardened cone crusher lining plate and processing technology Download PDF

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Publication number
CN113774287A
CN113774287A CN202111102639.7A CN202111102639A CN113774287A CN 113774287 A CN113774287 A CN 113774287A CN 202111102639 A CN202111102639 A CN 202111102639A CN 113774287 A CN113774287 A CN 113774287A
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cladding
wear
resistant layer
lining plate
powder
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周立涛
王爱华
王永杰
王海涛
方虎
范天昊
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Shanghai Geze Laser Technology Co ltd
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Shanghai Geze Laser Technology Co ltd
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/005—Lining
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • 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
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/106—Coating with metal alloys or metal elements only

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention discloses a laser cladding pre-hardened cone crusher lining plate and a processing technology thereof, and the formula comprises: priming a bottom layer material and a wear-resistant layer material, wherein the process comprises the first step of preprocessing a lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer; according to the invention, a wear-resistant and impact-resistant pre-hardened coating is cladded on the surface of the high manganese steel by a laser cladding technology, so that the surface of the coating is worn firstly, after the surface is worn, the surface hardness of a high manganese steel substrate is obviously improved, the surface hardness and the wear resistance of the lining plate are improved, and the service life of the lining plate is prolonged.

Description

Laser cladding pre-hardened cone crusher lining plate and processing technology
Technical Field
The invention relates to the technical field of cone crushers, in particular to a laser cladding pre-hardened cone crusher lining plate and a processing technology thereof.
Background
The cone crusher is one apparatus for crushing ore, and the lining board of the cone crusher is the main part and consists of movable cone and fixed cone, and the cone crusher adopts the principle of laminated crushing, and has material inside the crushing cavity in multilayer distribution and shaft line of the crusher driven by the eccentric shaft sleeve to make the movable cone approach to and separate from the surface of the fixed cone The lining plate is too long in replacement period, the labor intensity of workers is increased, the normal production progress is seriously influenced, the existing lining plate is mostly made of high manganese steel, the high manganese steel has higher toughness, and can also have high hardness and high wear resistance, the lining plate is made of more materials for the existing cone crusher, the surface of the high manganese steel is induced to form a martensite structure through deformation in the service process, the hardness of the surface is obviously improved, however, a new product is not subjected to work hardening, the hardness is lower, the wear resistance is not realized, accelerated wear can be caused in the use process, and therefore, the pre-hardening treatment on the surface of the high manganese steel is very necessary.
Disclosure of Invention
The invention aims to provide a laser cladding pre-hardened cone crusher lining plate and a processing technology thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a laser cladding pre-hardened cone crusher lining plate comprises the following formula: the primer layer material and the wear-resistant layer material comprise the following components in percentage by mass: 0.01-0.05% of C, 16-19% of Cr, 10-14% of Ni, 1-3.5% of Mo, 0.2-0.8% of Ti, 0.1-0.4% of Nb and 0.1-0.3% of Si, and the balance of Fe.
Preferably, the wear-resistant layer material has three types of A1, A2 and A3, and the A1 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-1.0% of C, 13-18% of Cr, 2-8% of W, 1-4% of Mo, 0.2-1.3% of Ti and 0.1-0.4% of Nb, and the balance of Fe; the A2 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-0.8% of C, 13-18% of Cr, 4-6% of Si, 1-5% of Fe, 0.2-1.0% of B, 0.2-1.3% of Ti, 0.1-0.4% of Nb, and the balance of Ni and WC according to the weight ratio of 1: mixing at a ratio of 0.4-0.6; the A3 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-0.8% C, 13-18% Cr, 4-6% Si, 1-5% Fe, 0.2-1.0% B, 0.2-1.3% Ti, 0.1-0.4% Nb, the remainder being Ni and Co (Ni) WC in the ratio of 1: mixing at a ratio of 0.15-0.4.
A processing technology of a laser cladding pre-hardened cone crusher lining plate comprises the steps of firstly, preprocessing the lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer;
in the first step, the lining plate is installed on corresponding equipment, the position needing cladding is polished, oxides, paint and coatings are removed, and fresh metal which is uniform and continuous is leaked out of the position to be clad;
in the second step, the raw materials are weighed according to the proportion of the bottom layer material by taking the sum of the mass percentages as 1, and the bottom layer powder is obtained after sintering and crushing;
in the third step, the powder of the bottom layer prepared in the second step is put into a powder feeder, and the bottom layer is cladded at the position to be cladded and treated in the first step;
in the fourth step, the raw materials are weighed according to the material ratio of the wear-resistant layer, and the weighed raw materials are uniformly mixed by using a mixer to obtain wear-resistant layer mixed powder, wherein the sum of the mass percentages is 1;
and in the fifth step, the wear-resistant layer mixed powder prepared in the fourth step is put into a powder feeder, cladding is immediately started within half an hour after the third step is finished, a wear-resistant layer is prepared, and the wear-resistant layer is cooled to room temperature according to a specified cooling mode to obtain a finished workpiece.
Preferably, in the first step, the lining plate includes a fixed cone and a movable cone.
Preferably, in the third step, the cladding laser spot is 3-5mm, the power is 4-6KW, the powder feeding is 3-8r/min, and the linear speed is 80-150 mm/s.
Preferably, in the third step, the cladding thickness of the bottom coating layer is 0.8mm-1 mm.
Preferably, in the fifth step, when the A1 type wear-resistant layer is prepared, the laser spot for cladding is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, and the linear speed is 15-45 mm/s; when the A2 type wear-resistant layer is prepared, a workpiece is heated to 500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, the linear speed is 10-40mm/s, the cladding is finished by using an asbestos net, and the workpiece is slowly cooled to the room temperature; when the A3 type wear-resistant layer is prepared, a workpiece is heated to 300-500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, the linear speed is 10-40mm/s, the cladding is finished by using an asbestos net, and the workpiece is slowly cooled to the room temperature.
Preferably, in the fifth step, the cladding thickness of the wear-resistant layer is 1.5mm-3 mm.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, a wear-resistant and impact-resistant pre-hardened coating is cladded on the surface of the high manganese steel by a laser cladding technology, so that the surface of the coating is worn firstly, after the surface is worn, the surface hardness of a high manganese steel substrate is obviously improved, the surface hardness and the wear resistance of the lining plate are improved, and the service life of the lining plate is prolonged.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic view of the workpiece processing of the present invention;
FIG. 3 is a histomorphogram of A1 powder;
FIG. 4 is a histomorphogram of A2 powder;
fig. 5 is a histomorphogram of a3 powder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a technical solution provided by the present invention is:
example 1:
a laser cladding pre-hardened cone crusher lining plate comprises the following formula: the priming coat comprises a priming coat material and an A1 type wear-resistant layer material, wherein the priming coat material comprises the following components in percentage by mass: 0.05% of C, 19% of Cr, 14% of Ni, 3.5% of Mo, 0.8% of Ti, 0.4% of Nb, 0.3% of Si and 61.95% of Fe; the A1 type wear-resistant layer material comprises the following components in percentage by mass: 1.0% C, 18% Cr, 8% W, 4% Mo, 1.3% Ti, 0.4% Nb and 67.3% Fe.
A processing technology of a laser cladding pre-hardened cone crusher lining plate comprises the steps of firstly, preprocessing the lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer;
in the first step, a completely new liner plate of a cone crusher with the model FL4428818 is taken as an object, a fixed cone and a movable cone are installed on corresponding equipment, the position needing cladding is polished, oxides, paint and coating are removed, and fresh metal which is uniform and continuous is leaked from the position to be clad;
in the second step, the raw materials are weighed according to the proportion of the bottom layer material by taking the sum of the mass percentages as 1, and the bottom layer powder is obtained after sintering and crushing;
in the third step, the powder of the base coat prepared in the second step is put into a powder feeder, the base coat is cladded at the position to be cladded and treated in the first step, the cladding laser spot is 4mm, the power is 5KW, the powder feeding is 6r/min, the linear velocity is 150mm/s, and the cladding thickness of the base coat is 1 mm;
in the fourth step, the raw materials are weighed according to the material ratio of the A1 type wear-resistant layer, and the weighed raw materials are uniformly mixed by using a mixer to obtain A1 type wear-resistant layer mixed powder, wherein the sum of the mass percentages is 1;
and in the fifth step, the mixed powder of the A1 type wear-resistant layer prepared in the fourth step is put into a powder feeder, cladding is immediately started within half an hour after the third step, the A1 type wear-resistant layer is prepared, a finished workpiece is obtained after the mixed powder is cooled to room temperature according to a specified cooling mode, a cladding laser spot is 4mm, the power is 4KW, the powder feeding is 4r/min, the linear speed is 30mm/s, the cladding thickness of the wear-resistant layer is 2mm, the texture of the A1 powder is shown in figure 3, the right side in the figure is a base layer, the left side is the wear-resistant layer, and the WC is distributed in a special shape.
Example 2:
a laser cladding pre-hardened cone crusher lining plate comprises the following formula: the priming coat comprises a priming coat material and an A2 type wear-resistant layer material, wherein the priming coat material comprises the following components in percentage by mass: 0.05% of C, 19% of Cr, 14% of Ni, 3.5% of Mo, 0.8% of Ti, 0.4% of Nb, 0.3% of Si and 61.95% of Fe; the A2 type wear-resistant layer material comprises the following components in percentage by mass: 0.8% of C, 18% of Cr, 6% of Si, 5% of Fe, 1.0% of B, 1.3% of Ti, 0.4% of Nb, 27.5% of WC and 40% of Ni.
A processing technology of a laser cladding pre-hardened cone crusher lining plate comprises the steps of firstly, preprocessing the lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer;
in the first step, a completely new liner plate of a cone crusher with the model FL4428818 is taken as an object, a fixed cone and a movable cone are installed on corresponding equipment, the position needing cladding is polished, oxides, paint and coating are removed, and fresh metal which is uniform and continuous is leaked from the position to be clad;
in the second step, the raw materials are weighed according to the proportion of the bottom layer material by taking the sum of the mass percentages as 1, and the bottom layer powder is obtained after sintering and crushing;
in the third step, the powder of the base coat prepared in the second step is put into a powder feeder, the base coat is cladded at the position to be cladded and treated in the first step, the cladding laser spot is 4mm, the power is 5KW, the powder feeding is 6r/min, the linear velocity is 150mm/s, and the cladding thickness of the base coat is 1 mm;
in the fourth step, the raw materials are weighed according to the material ratio of the A2 type wear-resistant layer, and the weighed raw materials are uniformly mixed by using a mixer to obtain A2 type wear-resistant layer mixed powder, wherein the sum of the mass percentages is 1;
and in the fifth step, the mixed powder of the A2 type wear-resistant layer configured in the fourth step is put into a powder feeder, cladding is immediately started within half an hour after the third step, the A2 type wear-resistant layer is prepared, a finished workpiece is obtained after the mixed powder is cooled to room temperature according to a specified cooling mode, the workpiece is heated to 300-500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 4mm, the power is 4KW, the powder feeding is 4r/min, the linear speed is 30mm/s, after cladding is finished, the workpiece is coated by a asbestos net, the workpiece is slowly cooled to room temperature, the cladding thickness of the wear-resistant layer is 2mm, (the organization form of the A2 powder is shown in figure 4, the left side is a bottom layer, the right side is a wear-resistant layer, and the round distribution is WC).
Example 3:
a laser cladding pre-hardened cone crusher lining plate comprises the following formula: the priming coat comprises a priming coat material and an A3 type wear-resistant layer material, wherein the priming coat material comprises the following components in percentage by mass: 0.05% of C, 19% of Cr, 14% of Ni, 3.5% of Mo, 0.8% of Ti, 0.4% of Nb, 0.3% of Si and 61.95% of Fe; the A3 type wear-resistant layer material comprises the following components in percentage by mass: 0.8% C, 18% Cr, 6% Si, 5% Fe, 1.0% B, 1.3% Ti, 0.4% Nb, 11.5% Co (Ni) WC and 56% Ni.
A processing technology of a laser cladding pre-hardened cone crusher lining plate comprises the steps of firstly, preprocessing the lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer;
in the first step, a completely new liner plate of a cone crusher with the model FL4428818 is taken as an object, a fixed cone and a movable cone are installed on corresponding equipment, the position needing cladding is polished, oxides, paint and coating are removed, and fresh metal which is uniform and continuous is leaked from the position to be clad;
in the second step, the raw materials are weighed according to the proportion of the bottom layer material by taking the sum of the mass percentages as 1, and the bottom layer powder is obtained after sintering and crushing;
in the third step, the powder of the base coat prepared in the second step is put into a powder feeder, the base coat is cladded at the position to be cladded and treated in the first step, the cladding laser spot is 4mm, the power is 5KW, the powder feeding is 6r/min, the linear velocity is 150mm/s, and the cladding thickness of the base coat is 1 mm;
in the fourth step, the raw materials are weighed according to the material ratio of the A3 type wear-resistant layer, and the weighed raw materials are uniformly mixed by using a mixer to obtain A3 type wear-resistant layer mixed powder, wherein the sum of the mass percentages is 1;
and in the fifth step, the mixed powder of the A3 type wear-resistant layer configured in the fourth step is put into a powder feeder, cladding is immediately started within half an hour after the third step, the A3 type wear-resistant layer is prepared, a finished workpiece is obtained after the mixed powder is cooled to room temperature according to a specified cooling mode, the workpiece is heated to 300-500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 4mm, the power is 4KW, the powder feeding is 4r/min, the linear speed is 30mm/s, after cladding is finished, the workpiece is coated by a asbestos net, the workpiece is slowly cooled to room temperature, the cladding thickness of the wear-resistant layer is 2mm, (the organization form of the A3 powder is shown in figure 5, the left side is a bottom layer, the right side is a wear-resistant layer, and the round distribution is WC).
The wear layer material composition ratios of the examples are as follows:
example 1 Example 2 Example 3
C/% 1 0.8 0.8
Cr/% 18 18 18
W/% 8 0 0
Mo/% 4 0 0
Ti/% 1.3 1.3 1.3
Nb/% 0.4 0.4 0.4
Fe/% 67.3 5 5
Si/% 0 6 6
B/% 0 1 1
WC/% 0 27.5 0
Ni/% 0 40 56
Co(Ni)WC/% 0 0 11.5
The pairs of stage workpiece parameters for each example are as follows:
example 1 Example 2 Example 3
Cladding total area per square meter of outer surface of cone and inner surface of moving cone 2 2 2
Workpiece hardness/HRC after cladding of priming coat 20-25 20-25 20-25
Workpiece hardness/HRC after cladding of wear-resistant layer 65-68 60-62 56-62
Multiple/multiple of service life improvement of finished workpiece 2 1.5 1
Based on the above, the pre-hardening treatment is carried out on the surface of the lining plate by adopting the laser cladding technology, so that the surface of the lining plate generates a coating with metallurgical bonding and compact structure, the initial hardness of the lining plate of the cone crusher is improved, the coating is gradually worn by stones along with the use process, the high manganese steel serving as a base material is fully processed and hardened, the uniform martensitic stainless steel is formed on the surface, the surface hardness is greatly improved, and the wear resistance is also greatly improved; the method breaks through the limitation that the high manganese steel cannot or is difficult to carry out laser cladding, applies the laser cladding technology to the lining plate of the cone crusher, improves the service life of the lining plate of the cone crusher, and reduces the processing difficulty and processing consumption; in the present invention, the a1 powder prepared has the following advantages: after partial carbon is melted and solidified, the carbon is dissolved in martensite to form medium-carbon martensite which has certain hardness and good toughness, and the martensite contains a certain amount of W, Mo and other elements and can play a role in solid solution strengthening; the prepared A2 and A3 powder has the following advantages: WC and Co (Ni) WC are in a uniform spherical state and have similar sizes, so that the distribution density in the coating is higher, and the wear resistance of the coating can be obviously improved;
compared with the lining plate of the CN 108201917A-ceramic composite cone crusher and the preparation method thereof, the wear-resistant coating is added by the laser cladding technology, the process difficulty is low, the process stability is high, the toughness of the coating is good, the impact resistance is good, in addition, the laser cladding powder can be adjusted according to the requirements, and the performance of the coating can be adjusted according to different working conditions; compared with CN109648062A, a cone crusher lining plate with a cast-infiltration layer and a preparation method thereof, a cast-infiltration coating and a preparation method thereof-public, the cast-infiltration coating is processed in the casting process by using a chemical method, the cast-infiltration coating is processed in a laser mode after the casting is finished, and the process difficulty is low; compared with the lining plate of the cone crusher with a composite structure, namely CN210965261U, the lining plate is embedded with alloy, and the first wave abrasion is resisted through the outstanding alloy.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. A laser cladding pre-hardened cone crusher lining plate comprises the following formula: priming coat material and wearing layer material, priming coat material characterized in that: the priming layer material comprises the following components in percentage by mass: 0.01-0.05% of C, 16-19% of Cr, 10-14% of Ni, 1-3.5% of Mo, 0.2-0.8% of Ti, 0.1-0.4% of Nb and 0.1-0.3% of Si, and the balance of Fe.
2. The laser clad pre-hardened cone crusher liner plate of claim 1, wherein: the wear-resistant layer material is of three types A1, A2 and A3, and the A1 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-1.0% of C, 13-18% of Cr, 2-8% of W, 1-4% of Mo, 0.2-1.3% of Ti and 0.1-0.4% of Nb, and the balance of Fe; the A2 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-0.8% of C, 13-18% of Cr, 4-6% of Si, 1-5% of Fe, 0.2-1.0% of B, 0.2-1.3% of Ti, 0.1-0.4% of Nb, and the balance of Ni and WC according to the weight ratio of 1: mixing at a ratio of 0.4-0.6; the A3 type wear-resistant layer material comprises the following components in percentage by mass: 0.6-0.8% C, 13-18% Cr, 4-6% Si, 1-5% Fe, 0.2-1.0% B, 0.2-1.3% Ti, 0.1-0.4% Nb, the remainder being Ni and Co (Ni) WC in the ratio of 1: mixing at a ratio of 0.15-0.4.
3. A processing technology of a laser cladding pre-hardened cone crusher lining plate comprises the steps of firstly, preprocessing the lining plate; step two, drying the bottom layer powder; cladding a bottom coating; step four, preparing mixed powder of the wear-resistant layer; step five, cladding a wear-resistant layer; the method is characterized in that:
in the first step, the lining plate is installed on corresponding equipment, the position needing cladding is polished, oxides, paint and coatings are removed, and fresh metal which is uniform and continuous is leaked out of the position to be clad;
in the second step, the raw materials are weighed according to the proportion of the bottom layer material by taking the sum of the mass percentages as 1, and the bottom layer powder is obtained after sintering and crushing;
in the third step, the powder of the bottom layer prepared in the second step is put into a powder feeder, and the bottom layer is cladded at the position to be cladded and treated in the first step;
in the fourth step, the raw materials are weighed according to the material ratio of the wear-resistant layer, and the weighed raw materials are uniformly mixed by using a mixer to obtain wear-resistant layer mixed powder, wherein the sum of the mass percentages is 1;
and in the fifth step, the wear-resistant layer mixed powder prepared in the fourth step is put into a powder feeder, cladding is immediately started within half an hour after the third step is finished, a wear-resistant layer is prepared, and the wear-resistant layer is cooled to room temperature according to a specified cooling mode to obtain a finished workpiece.
4. The process for machining the laser cladding pre-hardened cone crusher lining plate according to claim 3, wherein the process comprises the following steps: in the first step, the lining plate comprises a fixed cone and a movable cone.
5. The process for machining the laser cladding pre-hardened cone crusher lining plate according to claim 3, wherein the process comprises the following steps: in the third step, the cladding laser spot is 3-5mm, the power is 4-6KW, the powder feeding is 3-8r/min, and the linear speed is 80-150 mm/s.
6. The process for machining the laser cladding pre-hardened cone crusher lining plate according to claim 3, wherein the process comprises the following steps: in the third step, the cladding thickness of the bottom coating is 0.8mm-1 mm.
7. The process for machining the laser cladding pre-hardened cone crusher lining plate according to claim 3, wherein the process comprises the following steps: in the fifth step, when the A1 type wear-resistant layer is prepared, a cladding laser spot is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, and the linear speed is 15-45 mm/s; when the A2 type wear-resistant layer is prepared, a workpiece is heated to 500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, the linear speed is 10-40mm/s, the cladding is finished by using an asbestos net, and the workpiece is slowly cooled to the room temperature; when the A3 type wear-resistant layer is prepared, a workpiece is heated to 300-500 ℃ by using oxyacetylene or liquefied gas, the temperature is kept for half an hour, a cladding laser spot is 3-5mm, the power is 3-5KW, the powder feeding is 3-5r/min, the linear speed is 10-40mm/s, the cladding is finished by using an asbestos net, and the workpiece is slowly cooled to the room temperature.
8. The process for machining the laser cladding pre-hardened cone crusher lining plate according to claim 3, wherein the process comprises the following steps: in the fifth step, the cladding thickness of the wear-resistant layer is 1.5mm-3 mm.
CN202111102639.7A 2021-09-21 2021-09-21 Laser cladding pre-hardened cone crusher lining plate and processing technology Pending CN113774287A (en)

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Publication number Priority date Publication date Assignee Title
CN114574852A (en) * 2022-01-20 2022-06-03 长沙市萨普新材料有限公司 High-temperature gradient wear-resistant coating and preparation and application thereof
CN117551999A (en) * 2024-01-10 2024-02-13 矿冶科技集团有限公司 Preparation method of dynamic cone surface laser cladding coating of cone crusher, dynamic cone and cone crusher

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US5593726A (en) * 1990-05-10 1997-01-14 Apv Corporation Limited Hot isostatic pressing process for applying wear and corrosion resistant coatings
CN109440101A (en) * 2018-10-30 2019-03-08 北京奥邦新材料有限公司 A kind of composite ceramic powder for laser melting coating potassium steel material
CN111496415A (en) * 2020-05-19 2020-08-07 大连华锐重工特种备件制造有限公司 High-performance movable and fixed cone in cone crusher and preparation method thereof

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GB815149A (en) * 1956-11-09 1959-06-17 Uddeholms Ab Steel, e.g.for hot working tools and the like
US5593726A (en) * 1990-05-10 1997-01-14 Apv Corporation Limited Hot isostatic pressing process for applying wear and corrosion resistant coatings
JPH07126828A (en) * 1993-11-04 1995-05-16 Kobe Steel Ltd Production of high corrosion resistant austenitic stainless steel member for semiconductor producing device
CN109440101A (en) * 2018-10-30 2019-03-08 北京奥邦新材料有限公司 A kind of composite ceramic powder for laser melting coating potassium steel material
CN111496415A (en) * 2020-05-19 2020-08-07 大连华锐重工特种备件制造有限公司 High-performance movable and fixed cone in cone crusher and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114574852A (en) * 2022-01-20 2022-06-03 长沙市萨普新材料有限公司 High-temperature gradient wear-resistant coating and preparation and application thereof
CN117551999A (en) * 2024-01-10 2024-02-13 矿冶科技集团有限公司 Preparation method of dynamic cone surface laser cladding coating of cone crusher, dynamic cone and cone crusher
CN117551999B (en) * 2024-01-10 2024-03-22 矿冶科技集团有限公司 Preparation method of dynamic cone surface laser cladding coating of cone crusher, dynamic cone and cone crusher

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