CN110923565A - High-wear-resistance diesel engine matrix cylinder sleeve and production process thereof - Google Patents
High-wear-resistance diesel engine matrix cylinder sleeve and production process thereof Download PDFInfo
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- CN110923565A CN110923565A CN201911302335.8A CN201911302335A CN110923565A CN 110923565 A CN110923565 A CN 110923565A CN 201911302335 A CN201911302335 A CN 201911302335A CN 110923565 A CN110923565 A CN 110923565A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a high-wear-resistance diesel engine matrix cylinder sleeve and a production process thereof, and relates to the technical field of diesel engine accessories. The high-nickel-content heat treatment cylinder sleeve comprises a cylinder sleeve body, wherein a high-nickel cast iron layer with the thickness of 0.15-0.2 mm is compounded on the surface of the cylinder sleeve body by adopting a permeation compounding principle, a high-chromium cast iron layer with the thickness of 0.25-0.3 mm is compounded on the surface of the high-nickel cast iron layer by adopting the permeation compounding principle, and the cylinder sleeve is subjected to heat treatment. According to the invention, by adjusting the proportion of the raw materials in the cylinder sleeve body and sequentially compounding the high-nickel cast iron layer and the high-chromium cast iron layer on the surface of the cylinder sleeve body, the production process is reasonably improved, the heat treatment process is optimized, the casting process is simple, the processing mode is simple, the cost is low, the wear resistance of the diesel engine matrix cylinder sleeve is improved, the strength of the diesel engine matrix cylinder sleeve is improved, the wear loss is reduced, and the wear resistance at the working temperature is ensured.
Description
Technical Field
The invention belongs to the technical field of diesel engine accessories, and particularly relates to a high-wear-resistance diesel engine matrix cylinder sleeve and a production process thereof.
Background
The material of the cylinder liner must have good wear resistance, corrosion resistance, oil retention and lubricity, in addition to sufficient mechanical strength and heat, and among them, the most important is wear resistance.
At present, the common materials of the cylinder sleeve are nodular cast iron, high-phosphorus cast iron and alloy cast iron. The casting process of the nodular cast iron is more complex and costly than the common cast iron, the high-phosphorus cast iron has better manufacturability than the nodular cast iron, but because the phosphorus content is higher, the material becomes brittle and easy to produce shrinkage cavities to cause waste products, the alloy cast iron further improves the strength, the wear resistance and the corrosion resistance, but needs to consume precious metals, the smelting casting process is more difficult, and the cost is higher. Therefore, the high-wear-resistance diesel engine matrix cylinder sleeve and the production process thereof are provided, the production process is optimized, and the strength, the wear resistance and the corrosion resistance are improved.
Disclosure of Invention
The invention aims to provide a high-wear-resistance diesel engine matrix cylinder sleeve and a production process thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a high-wear-resistance diesel engine matrix cylinder sleeve which comprises a cylinder sleeve body, wherein a high-nickel cast iron layer is compounded on the outer surface of the cylinder sleeve body, and a high-chromium cast iron layer is compounded on the surface of the high-nickel cast iron layer; the cylinder sleeve body comprises the following components in percentage by weight: c: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe; the high-nickel cast iron layer comprises the following components in percentage by weight: c: 3.67-4.25%, Ni: 20.3-22.1%, W: 1.4-2.3%, Cr: 4.33 to 4.87%, Mn: 0.67 to 0.92%, Si: 0.45-0.86%, Ti: 0.26-0.32%, B: 0.008-0.01%, Cu: 0.27 to 0.51%, Mo: 0.47-0.68%, V: 0.97 to 1.45%, Re: 0.025-0.045%, P < 0.009%, S < 0.002%, inoculant: 0.02-0.06% and the balance Fe; the high-chromium cast iron layer comprises the following components in percentage by weight: c: 2.66-3.87%, Cr: 22.8-23.5%, V: 0.01 to 0.03%, Mn: 0.08-0.13%, W: 0.75-0.98%, Si: 1.35-1.68%, Ni: 0.008-0.013%, P < 0.01%, S < 0.01%, B: 0.02 to 0.05%, Cu: 0.02-0.045%, Mo: 0.3-0.42%, and the balance Fe.
Further, the cylinder sleeve body comprises the following components in percentage by weight: c: 4.99%, Cr: 0.96%, Mn: 1.54%, Si: 0.35%, Ti: 0.082%, B: 0.006%, Be: 0.001%, Cu: 0.37%, Nb: 0.14%, Mo: 0.031%, V: 0.21%, Re: 0.03%, P < 0.01%, S < 0.01%, and the balance Fe.
Further, the high-nickel cast iron layer comprises the following components in percentage by weight: c: 4.16%, Ni: 21.9%, W: 2.25%, Cr: 4.54%, Mn: 0.83%, Si: 0.77%, Ti: 0.31%, B: 0.009%, Cu: 0.48%, Mo: 0.55%, V: 1.32%, Re: 0.032%, P < 0.009%, S < 0.002%, inoculant: 0.02% and the balance Fe.
Further, the high-chromium cast iron layer comprises the following components in percentage by weight: c: 3.31%, Cr: 23.2%, V: 0.02%, Mn: 0.096%, W: 0.84%, Si: 1.53%, Ni: 0.009%, P < 0.01%, S < 0.01%, B: 0.03%, Cu: 0.039%, Mo: 0.3 percent and the balance of Fe.
Further, the thickness of the high-nickel cast iron layer is 0.15-0.2 mm.
Further, the thickness of the high-chromium cast iron layer is 0.25-0.3 mm.
A production process of a high-wear-resistance diesel engine matrix cylinder sleeve comprises the following steps:
the method comprises the following steps: preparing materials: will comprise C: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe are melted in a furnace until completely melted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: air-cooling the cylinder sleeve body to 90-110 ℃, heating to 450-550 ℃, preserving heat for 2 hours, and then cooling to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.15-0.2 mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 850-900 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.25-0.3 mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: and naturally cooling the workpiece to 75-90 ℃, continuously heating to 150-200 ℃, and preserving heat for 5 hours.
The invention has the following beneficial effects:
according to the invention, by adjusting the proportion of the raw materials in the cylinder sleeve body and sequentially compounding the high-nickel cast iron layer and the high-chromium cast iron layer on the surface of the cylinder sleeve body, the production process is reasonably improved, the heat treatment process is optimized, the casting process is simple, the processing mode is simple, the cost is low, the wear resistance of the diesel engine matrix cylinder sleeve is improved, the strength of the diesel engine matrix cylinder sleeve is improved, the wear loss is reduced, and the wear resistance at the working temperature is ensured.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
The invention relates to a high-wear-resistance diesel engine matrix cylinder sleeve, which comprises a cylinder sleeve body, wherein a high-nickel cast iron layer is compounded on the outer surface of the cylinder sleeve body, and a high-chromium cast iron layer is compounded on the surface of the high-nickel cast iron layer; the cylinder sleeve body comprises the following components in percentage by weight: c: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe; the high-nickel cast iron layer comprises the following components in percentage by weight: c: 3.67-4.25%, Ni: 20.3-22.1%, W: 1.4-2.3%, Cr: 4.33 to 4.87%, Mn: 0.67 to 0.92%, Si: 0.45-0.86%, Ti: 0.26-0.32%, B: 0.008-0.01%, Cu: 0.27 to 0.51%, Mo: 0.47-0.68%, V: 0.97 to 1.45%, Re: 0.025-0.045%, P < 0.009%, S < 0.002%, inoculant: 0.02-0.06% and the balance Fe; the high-chromium cast iron layer comprises the following components in percentage by weight: c: 2.66-3.87%, Cr: 22.8-23.5%, V: 0.01 to 0.03%, Mn: 0.08-0.13%, W: 0.75-0.98%, Si: 1.35-1.68%, Ni: 0.008-0.013%, P < 0.01%, S < 0.01%, B: 0.02 to 0.05%, Cu: 0.02-0.045%, Mo: 0.3-0.42%, and the balance Fe.
The cylinder sleeve body comprises the following components in percentage by weight: c: 4.99%, Cr: 0.96%, Mn: 1.54%, Si: 0.35%, Ti: 0.082%, B: 0.006%, Be: 0.001%, Cu: 0.37%, Nb: 0.14%, Mo: 0.031%, V: 0.21%, Re: 0.03%, P < 0.01%, S < 0.01%, and the balance Fe.
Wherein, the weight percentage of each component of the high nickel cast iron layer is as follows: c: 4.16%, Ni: 21.9%, W: 2.25%, Cr: 4.54%, Mn: 0.83%, Si: 0.77%, Ti: 0.31%, B: 0.009%, Cu: 0.48%, Mo: 0.55%, V: 1.32%, Re: 0.032%, P < 0.009%, S < 0.002%, inoculant: 0.02% and the balance Fe.
Wherein, the weight percentage of each component of the high-chromium cast iron layer is as follows: c: 3.31%, Cr: 23.2%, V: 0.02%, Mn: 0.096%, W: 0.84%, Si: 1.53%, Ni: 0.009%, P < 0.01%, S < 0.01%, B: 0.03%, Cu: 0.039%, Mo: 0.3 percent and the balance of Fe.
Wherein the thickness of the high-nickel cast iron layer is 0.15-0.2 mm.
Wherein the thickness of the high-chromium cast iron layer is 0.25-0.3 mm.
A production process of a high-wear-resistance diesel engine matrix cylinder sleeve comprises the following steps:
the method comprises the following steps: preparing materials: will comprise C: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe are melted in a furnace until completely melted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: air-cooling the cylinder sleeve body to 90-110 ℃, heating to 450-550 ℃, preserving heat for 2 hours, and then cooling to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.15-0.2 mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 850-900 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.25-0.3 mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: and naturally cooling the workpiece to 75-90 ℃, continuously heating to 150-200 ℃, and preserving heat for 5 hours.
The first embodiment is as follows:
a production process of a high-wear-resistance diesel engine matrix cylinder sleeve comprises the following specific manufacturing method:
the method comprises the following steps: preparing materials: will comprise C: 4.65%, Cr: 1.28%, Mn: 1.21%, Si: 0.1%, Ti: 0.07%, B: 0.003%, Be: 0.001%, Cu: 0.18%, Nb: 0.09%, Mo: 0.02%, V: 0.13%, Re: 0.01 percent, less than 0.01 percent of P, less than 0.01 percent of S and the balance of Fe are smelted in a furnace until the Fe is completely smelted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: cooling the cylinder sleeve body to 90 ℃, heating to 450 ℃, preserving heat for 2 hours, and then cooling to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.15mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 850 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.25mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: naturally cooling the workpiece to 75 ℃, continuously heating to 150 ℃, and preserving heat for 5 hours.
The strength of the diesel engine matrix cylinder sleeve produced by the method is 870-930 Hv, the diesel engine matrix cylinder sleeve has good wear resistance, the production process is simple, and the operation is convenient.
The second embodiment is as follows:
a production process of a high-wear-resistance diesel engine matrix cylinder sleeve comprises the following specific manufacturing method:
the method comprises the following steps: preparing materials: will comprise C: 5.27%, Cr: 1.58%, Mn: 1.63%, Si: 0.4%, Ti: 0.095%, B: 0.01%, Be: 0.002%, Cu: 0.43%, Nb: 0.17%, Mo: 0.035%, V: 0.22%, Re: 0.04 percent, less than 0.01 percent of P, less than 0.01 percent of S and the balance of Fe are smelted in a furnace until the Fe is completely smelted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: when the cylinder sleeve body is cooled to 110 ℃, the cylinder sleeve body is heated to 550 ℃, the temperature is kept for 2 hours, and then the cylinder sleeve body is cooled to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.2mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 900 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.3mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: naturally cooling the workpiece to 90 ℃, continuously heating to 200 ℃, and preserving heat for 5 hours.
The strength of the diesel engine matrix cylinder sleeve produced by the method is 950-1100 Hv, the diesel engine matrix cylinder sleeve has good wear resistance, the production process is simple, the operation is convenient, the abrasion loss is effectively reduced, and the service life of parts is prolonged.
The third concrete embodiment:
a production process of a high-wear-resistance diesel engine matrix cylinder sleeve comprises the following specific manufacturing method:
the method comprises the following steps: preparing materials: will comprise C: 4.99%, Cr: 0.96%, Mn: 1.54%, Si: 0.35%, Ti: 0.082%, B: 0.006%, Be: 0.001%, Cu: 0.37%, Nb: 0.14%, Mo: 0.031%, V: 0.21%, Re: 0.03 percent, less than 0.01 percent of P, less than 0.01 percent of S and the balance of Fe are smelted in a furnace until the Fe is completely melted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: when the cylinder sleeve body is cooled to 100 ℃, heating to 500 ℃, preserving heat for 2 hours, and then cooling to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.18mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 880 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.25mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: naturally cooling the workpiece to 80 ℃, continuously heating to 150 ℃, and preserving heat for 5 hours.
The strength of the diesel engine matrix cylinder sleeve produced by the method is 780-850 Hv, the wear resistance is good, the production process is simple, and the wear resistance at the working temperature can be guaranteed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The high-wear-resistance diesel engine matrix cylinder sleeve is characterized by comprising a cylinder sleeve body, wherein a high-nickel cast iron layer is compounded on the outer surface of the cylinder sleeve body, and a high-chromium cast iron layer is compounded on the surface of the high-nickel cast iron layer;
the cylinder sleeve body comprises the following components in percentage by weight:
c: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe;
the high-nickel cast iron layer comprises the following components in percentage by weight:
c: 3.67-4.25%, Ni: 20.3-22.1%, W: 1.4-2.3%, Cr: 4.33 to 4.87%, Mn: 0.67 to 0.92%, Si: 0.45-0.86%, Ti: 0.26-0.32%, B: 0.008-0.01%, Cu: 0.27 to 0.51%, Mo: 0.47-0.68%, V: 0.97 to 1.45%, Re: 0.025-0.045%, P < 0.009%, S < 0.002%, inoculant: 0.02-0.06% and the balance Fe;
the high-chromium cast iron layer comprises the following components in percentage by weight:
c: 2.66-3.87%, Cr: 22.8-23.5%, V: 0.01 to 0.03%, Mn: 0.08-0.13%, W: 0.75-0.98%, Si: 1.35-1.68%, Ni: 0.008-0.013%, P < 0.01%, S < 0.01%, B: 0.02 to 0.05%, Cu: 0.02-0.045%, Mo: 0.3-0.42%, and the balance Fe.
2. The high-abrasion diesel engine matrix cylinder liner as claimed in claim 1, wherein the cylinder liner body comprises the following components in percentage by weight:
c: 4.99%, Cr: 0.96%, Mn: 1.54%, Si: 0.35%, Ti: 0.082%, B: 0.006%, Be: 0.001%, Cu: 0.37%, Nb: 0.14%, Mo: 0.031%, V: 0.21%, Re: 0.03%, P < 0.01%, S < 0.01%, and the balance Fe.
3. The high-wear-resistance diesel engine matrix cylinder liner as claimed in claim 1, wherein the high-nickel cast iron layer comprises the following components in percentage by weight:
c: 4.16%, Ni: 21.9%, W: 2.25%, Cr: 4.54%, Mn: 0.83%, Si: 0.77%, Ti: 0.31%, B: 0.009%, Cu: 0.48%, Mo: 0.55%, V: 1.32%, Re: 0.032%, P < 0.009%, S < 0.002%, inoculant: 0.02% and the balance Fe.
4. The high-wear-resistance diesel engine matrix cylinder liner as claimed in claim 1, wherein the high-chromium cast iron layer comprises the following components in percentage by weight:
c: 3.31%, Cr: 23.2%, V: 0.02%, Mn: 0.096%, W: 0.84%, Si: 1.53%, Ni: 0.009%, P < 0.01%, S < 0.01%, B: 0.03%, Cu: 0.039%, Mo: 0.3 percent and the balance of Fe.
5. The high-wear-resistance diesel engine matrix cylinder sleeve according to claim 1, wherein the thickness of the high-nickel cast iron layer is 0.15-0.2 mm.
6. The high-wear-resistance diesel engine matrix cylinder sleeve according to claim 1, wherein the thickness of the high-chromium cast iron layer is 0.25-0.3 mm.
7. The production process of the high-wear-resistance diesel engine matrix cylinder sleeve as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
the method comprises the following steps: preparing materials: will comprise C: 4.63-5.27%, Cr: 0.75 to 1.58%, Mn: 1.21-1.63%, Si: 0.1-0.4%, Ti: 0.07-0.095%, B: 0.003-0.01%, Be: 0.001-0.002%, Cu: 0.18 to 0.43%, Nb: 0.09-0.17%, Mo: 0.02-0.035%, V: 0.13-0.22%, Re: 0.01-0.04%, P < 0.01%, S < 0.01%, and the balance Fe are melted in a furnace until completely melted;
step two: injecting the smelted raw materials into equipment, and molding and casting the cylinder sleeve body by adopting resin sand;
step three: air-cooling the cylinder sleeve body to 90-110 ℃, heating to 450-550 ℃, preserving heat for 2 hours, and then cooling to room temperature;
step four: polishing the surface of the cylinder sleeve body by using abrasive paper until the surface is smooth and has no scratch, removing oil stains on the surface of the cylinder sleeve body, and performing activation treatment;
step five: compounding a high-nickel cast iron layer with the thickness of 0.15-0.2 mm on the surface of the cylinder sleeve body by adopting a permeation compounding principle;
step six: heating the workpiece in the fifth step to 850-900 ℃, and air-cooling to room temperature;
step seven: compounding a high-chromium cast iron layer with the thickness of 0.25-0.3 mm on the surface of the high-nickel cast iron layer by adopting a permeation compounding principle;
step eight: and naturally cooling the workpiece to 75-90 ℃, continuously heating to 150-200 ℃, and preserving heat for 5 hours.
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| CN201911302335.8A CN110923565A (en) | 2019-12-17 | 2019-12-17 | High-wear-resistance diesel engine matrix cylinder sleeve and production process thereof |
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| CN201911302335.8A CN110923565A (en) | 2019-12-17 | 2019-12-17 | High-wear-resistance diesel engine matrix cylinder sleeve and production process thereof |
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| CN201911302335.8A Pending CN110923565A (en) | 2019-12-17 | 2019-12-17 | High-wear-resistance diesel engine matrix cylinder sleeve and production process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036644A (en) * | 1983-08-08 | 1985-02-25 | Kubota Ltd | Composite cylinder liner |
| JPS60121254A (en) * | 1983-12-05 | 1985-06-28 | Kubota Ltd | Composite cylinder liner |
| CN1332264A (en) * | 2001-07-25 | 2002-01-23 | 李喜林 | Antiwear cast alloy material with high sulfur content and several compoiste self-lubricating phases |
| CN105401063A (en) * | 2015-11-25 | 2016-03-16 | 中原内配集团股份有限公司 | As-cast malleable cast iron cylinder sleeve produced through centrifugal casting and production process of as-cast malleable cast iron cylinder sleeve |
| CN107557657A (en) * | 2017-09-06 | 2018-01-09 | 马鞍山市万兴耐磨金属制造有限公司 | A kind of low chrome abrasion-proof steel ball and its manufacture method with composite wear-resistant layer |
-
2019
- 2019-12-17 CN CN201911302335.8A patent/CN110923565A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036644A (en) * | 1983-08-08 | 1985-02-25 | Kubota Ltd | Composite cylinder liner |
| JPS60121254A (en) * | 1983-12-05 | 1985-06-28 | Kubota Ltd | Composite cylinder liner |
| CN1332264A (en) * | 2001-07-25 | 2002-01-23 | 李喜林 | Antiwear cast alloy material with high sulfur content and several compoiste self-lubricating phases |
| CN105401063A (en) * | 2015-11-25 | 2016-03-16 | 中原内配集团股份有限公司 | As-cast malleable cast iron cylinder sleeve produced through centrifugal casting and production process of as-cast malleable cast iron cylinder sleeve |
| CN107557657A (en) * | 2017-09-06 | 2018-01-09 | 马鞍山市万兴耐磨金属制造有限公司 | A kind of low chrome abrasion-proof steel ball and its manufacture method with composite wear-resistant layer |
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Application publication date: 20200327 |