CN112139885A - Cylinder sleeve surface treatment device and method - Google Patents
Cylinder sleeve surface treatment device and method Download PDFInfo
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- CN112139885A CN112139885A CN202011079528.4A CN202011079528A CN112139885A CN 112139885 A CN112139885 A CN 112139885A CN 202011079528 A CN202011079528 A CN 202011079528A CN 112139885 A CN112139885 A CN 112139885A
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- connecting seat
- liquid
- upright post
- upper connecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
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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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
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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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
- C23C8/48—Nitriding
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to a cylinder sleeve surface treatment device and a method, the device comprises a furnace body and a cover body, a plurality of annular lower connecting seats are arranged on the inner wall of the bottom of the furnace body, a plurality of cylindrical upper connecting seats are arranged on the inner wall of the top of the cover body, and the upper connecting seats and the lower connecting seats are arranged in a one-to-one correspondence manner; a cylindrical upright post is arranged between the upper connecting seat and the lower connecting seat; the upright post is provided with a plurality of support rings along the height direction, the side wall of the upright post is provided with a positioning blind hole, and the support rings are fixed on the positioning blind hole through bolts; the side wall of the upright post is also provided with a vertical joint which penetrates through the inside of the upright post. The device can realize hard nitriding treatment and then soft nitriding treatment on the inner hole of the cylinder sleeve, can obtain larger nitriding depth, and can solve the problem of loosening of a hard nitriding bright white layer.
Description
Technical Field
The invention relates to a cylinder sleeve surface treatment device and method, and belongs to the technical field of cylinder sleeve manufacturing.
Background
The inner wall of the cylinder sleeve is required to have higher wear resistance and corrosion resistance, and the wear resistance and the corrosion resistance of the cylinder sleeve can be greatly improved through nitriding treatment. Currently, nitriding treatment methods for cylinder liners include hard nitriding and soft nitriding. The hard nitriding treatment time is longer, a larger nitriding depth can be obtained, but the bright white layer on the treated surface is looser, and the surface is easy to peel off when the fine grinding is subsequently carried out, so that the surface is rough. The soft nitriding treatment adopts carbonitriding, can solve the surface loosening problem of hard nitriding treatment, but has smaller nitriding depth.
Disclosure of Invention
Aiming at the problems, the invention provides a cylinder sleeve surface treatment device and a method, and the specific scheme is as follows:
a cylinder sleeve surface treatment device comprises a furnace body and a cover body, wherein a plurality of annular lower connecting seats are arranged on the inner wall of the bottom of the furnace body, a plurality of cylindrical upper connecting seats are arranged on the inner wall of the top of the cover body, and the upper connecting seats and the lower connecting seats are arranged in a one-to-one correspondence manner; a cylindrical upright post is arranged between the upper connecting seat and the lower connecting seat; the upright post is provided with a plurality of support rings along the height direction, the side wall of the upright post is provided with a positioning blind hole, and the support rings are fixed on the positioning blind hole through bolts; the side wall of the upright post is also provided with a vertical seam which penetrates through the inside of the upright post; the upper part of the upper connecting seat is provided with a liquid distribution cavity, the liquid distribution cavity is connected with a spraying liquid storage tank, the bottom of the upper connecting seat is provided with a liquid distribution hole, the liquid distribution hole is communicated with the liquid distribution cavity, and the liquid distribution hole is arranged along the outer circumference of the bottom surface of the upper connecting seat; the support ring is also provided with a liquid separation hole; the bottom of furnace body is equipped with the ammonia import, the bottom and the ammonia import intercommunication of lower connecting seat.
Furthermore, the upper part of the cover body is provided with a spraying liquid preheating chamber, the spraying liquid preheating chamber is connected with a spraying liquid storage tank, and the spraying liquid preheating chamber is communicated with the liquid separating cavity of the upper connecting seat.
Furthermore, two positioning grooves are formed in the bottom of the upper connecting seat and the top of the lower connecting seat, and the liquid separating hole is formed between the two positioning grooves; the top of the lower connecting seat is provided with a positioning groove; the top and the bottom of the support ring are respectively provided with a positioning groove.
The cylinder liner surface treatment method of the present invention includes the steps of:
1) carrying out coarse grinding on an inner hole of the cylinder sleeve;
2) placing a cylinder sleeve into the cylinder sleeve surface treatment device, heating to 520-550 ℃, introducing ammonia gas, and performing nitridation treatment;
3) stopping introducing ammonia gas, heating to 550-580 ℃, and injecting a spray liquid for soft nitriding treatment, wherein the spray liquid is triethanolamine;
4) and after cooling, finely grinding the inner hole of the cylinder sleeve.
Further, in the step 1), after rough grinding, coating mixed slurry on an inner hole of the cylinder sleeve, wherein the mixed slurry comprises, by weight, 10-20 parts of tin powder, 10-20 parts of zinc powder, 30-60 parts of aluminum powder, 5-10 parts of urea and 5-10 parts of kerosene.
The device has the advantages that the device can realize hard nitriding treatment and soft nitriding treatment on the inner hole of the cylinder sleeve, can obtain larger nitriding depth, can solve the problem of loosening of a hard nitriding bright white layer and avoids the problem of surface peeling when finish honing is carried out after nitriding.
Drawings
FIG. 1 is a schematic view of a treating apparatus according to the present invention;
FIG. 2 is a schematic structural view of a pillar according to the present invention;
FIG. 3 is a schematic view of a positioning groove according to the present invention;
fig. 4 is a schematic diagram of the deep groove forming alloy phase of the cylinder liner inner hole.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to specific examples.
Example 1
Referring to fig. 1-3, a cylinder sleeve surface treatment device comprises a furnace body 1 and a cover body 2, wherein a plurality of annular lower connecting seats 3 are arranged on the inner wall of the bottom of the furnace body 1, a plurality of cylindrical upper connecting seats 4 are arranged on the inner wall of the top of the cover body, and the upper connecting seats and the lower connecting seats are arranged in a one-to-one correspondence manner; a cylindrical upright post 5 is arranged between the upper connecting seat and the lower connecting seat; the upright post is provided with a plurality of support rings 6 along the height direction, the side wall of the upright post is provided with a positioning blind hole, and the support rings are fixed on the positioning blind hole through bolts 7; the side wall of the upright post is also provided with vertical seams 8, the vertical seams penetrate through the inside of the upright post, the height of the vertical seams corresponds to that of the cylinder sleeve, the width of the vertical seams is 0.5mm, and the vertical seams are uniformly distributed along the circumferential direction of the upright post at equal intervals; the upper part of the upper connecting seat is provided with a liquid distribution cavity 9, the liquid distribution cavity is connected with a spraying liquid storage tank, the bottom of the upper connecting seat is provided with a liquid distribution hole 10, the liquid distribution hole is communicated with the liquid distribution cavity, and the liquid distribution hole is arranged along the outer circumference of the bottom surface of the upper connecting seat; the support ring is also provided with a liquid separation hole; the bottom of furnace body is equipped with the ammonia import, the bottom and the ammonia import intercommunication of lower connecting seat.
When carrying out nitriding treatment, cylinder jacket 11 is placed on stand 5, is supported by the support ring interval between the upper and lower adjacent cylinder jacket, and in will adorning the stand hoist and mount of cylinder jacket to the furnace body again, stand lower extreme and lower connecting seat butt joint, after the hoist and mount was accomplished, covered the lid again, last connecting seat on the lid and stand upper end butt joint.
The upper part of the cover body is provided with a spraying liquid preheating chamber 12 which is connected with a spraying liquid storage tank and is communicated with the liquid separating cavity of the upper connecting seat. The spray liquid preheating chamber is internally provided with a heat exchanger, the furnace body is provided with a tail gas outlet, the tail gas outlet is connected with an incinerator, the outlet of the incinerator is connected to the heat exchanger, and the spray liquid can be preheated by utilizing the temperature of tail gas. And can treat tail gas containing ammonia gas.
The bottom of the upper connecting seat and the top of the lower connecting seat are provided with two positioning grooves 13, and the liquid separating hole is arranged between the two positioning grooves; the top of the lower connecting seat is provided with a positioning groove; the top and the bottom of the support ring are respectively provided with a positioning groove. When the cylinder sleeve is placed and hoisted, the end surfaces of the cylinder sleeve and the upright post fall into the corresponding positioning grooves. The end surface of the cylinder sleeve is in close contact with the positioning groove, and has certain sealing capacity.
In nitriding, the higher the concentration of active nitrogen atoms on the surface of the cylinder liner, the faster the nitriding rate. After ammonia gas is decomposed by heating, nitrogen atoms are rapidly combined into stable nitrogen molecules, so that the nitriding speed is reduced on the contrary when the ammonia decomposition rate is higher.
This device is letting in ammonia and is carrying out the nitrogenize to the cylinder jacket when, and the ammonia lets in by the stand is inside, gets into the clearance between cylinder jacket inner wall and the stand outer wall along the perps of stand. On one hand, because the end surface of the cylinder sleeve forms a sealing surface, a certain pressure can be kept on one side of the inner wall of the cylinder sleeve, which is beneficial to the infiltration of active nitrogen atoms; on the other hand, after ammonia gas enters the furnace body, the ammonia gas can enter a gap between the upright post and the cylinder sleeve in a short time, and active nitrogen atoms generated by ammonia decomposition can be favorably and quickly contacted with the inner wall of the cylinder sleeve. Under certain pressure, residual gas after nitriding can permeate to the cylinder jacket outside along the cylinder jacket terminal surface, plays the nitrogenize effect to the cylinder jacket outer wall, because the outer wall of cylinder jacket does not have the requirement to wear resistance, consequently also hangs down the requirement to the nitrogenize degree. The device can improve the nitriding speed of the inner wall of the cylinder sleeve and reduce the ammonia consumption.
In addition, this device can instil into carbonaceous spray liquid by dividing the liquid chamber in the nitrogenize later stage, sprays liquid and instils into the cylinder jacket inner wall along dividing the liquid hole, realizes the tufftride to the cylinder jacket inner wall.
Example 2
A cylinder liner surface treatment method comprising the steps of:
1) carrying out coarse grinding on the inner hole of the cylinder sleeve, wherein the inner hole of the cylinder sleeve after coarse grinding is provided with a deeper reticulate pattern groove;
2) placing a cylinder sleeve into the cylinder sleeve surface treatment device, heating to 520-550 ℃, introducing ammonia gas, performing nitriding treatment, wherein the flow of the ammonia gas is 100-150L/min, and the heat preservation time is 15-20 h;
3) stopping introducing ammonia gas, heating to 550-580 ℃, and injecting a spray liquid for soft nitriding treatment, wherein the spray liquid is triethanolamine; keeping the temperature for 2-4 h;
4) and after cooling, carrying out fine grinding on the inner hole of the cylinder sleeve to form a platform reticulate pattern during fine grinding.
The cylinder sleeve is arranged in a reticulate pattern groove generated in the coarse grinding process, and when the cylinder sleeve is subjected to nitriding treatment, the groove wall of the groove is extruded due to deformation, so that the depth of the groove is reduced and even the groove is blocked. Although the groove can be regenerated when the inner hole is finely ground after nitridation, the main function of the fine grinding is to grind the crest of the groove to form a platform and remove the machining allowance, so that the deep groove cannot be formed during rough grinding, and the oil storage capacity of the inner hole is reduced.
According to the scheme, after coarse grinding, the mixed slurry is coated on an inner hole of a cylinder sleeve in the step 1), and the mixed slurry comprises, by weight, 10-20 parts of tin powder, 10-20 parts of zinc powder, 30-60 parts of aluminum powder, 5-10 parts of urea and 5-10 parts of kerosene. After the mixed slurry is coated, the inner hole is cleaned, and only the mixed slurry entering the deep groove is reserved. During nitriding, the mixed slurry is gradually heated, wherein the low-melting point tin powder and the zinc powder are gradually melted to form a liquid phase, the aluminum powder and the inner wall of the groove are dissolved to form an alloy phase, the alloy phase is adsorbed in the groove, and meanwhile, urea in the alloy phase is heated and decomposed to form air holes so as to promote a large number of pores to be formed in the alloy phase. After cooling, the alloy phase in the deep trenches solidifies, forming a loose porous alloy phase 14, as shown in fig. 4. Even if the deep groove disappears after the nitriding treatment and the fine grinding, the retained alloy phase still has stronger oil storage capacity, and the wear resistance of the inner hole of the cylinder sleeve is improved. In addition, the alloy phase can also form support for the groove wall, and prevent the sand strips from peeling off the surface of the inner hole during fine grinding.
Claims (5)
1. A cylinder liner surface treatment device is characterized in that: the furnace comprises a furnace body and a cover body, wherein a plurality of annular lower connecting seats are arranged on the inner wall of the bottom of the furnace body, a plurality of cylindrical upper connecting seats are arranged on the inner wall of the top of the cover body, and the upper connecting seats and the lower connecting seats are arranged in a one-to-one correspondence manner; a cylindrical upright post is arranged between the upper connecting seat and the lower connecting seat; the upright post is provided with a plurality of support rings along the height direction, the side wall of the upright post is provided with a positioning blind hole, and the support rings are fixed on the positioning blind hole through bolts; the side wall of the upright post is also provided with a vertical seam which penetrates through the inside of the upright post; the upper part of the upper connecting seat is provided with a liquid distribution cavity, the liquid distribution cavity is connected with a spraying liquid storage tank, the bottom of the upper connecting seat is provided with a liquid distribution hole, the liquid distribution hole is communicated with the liquid distribution cavity, and the liquid distribution hole is arranged along the outer circumference of the bottom surface of the upper connecting seat; the support ring is also provided with a liquid separation hole; the bottom of furnace body is equipped with the ammonia import, the bottom and the ammonia import intercommunication of lower connecting seat.
2. The cylinder liner surface treatment apparatus according to claim 1, characterized in that: the upper part of the cover body is provided with a spraying liquid preheating chamber, the spraying liquid preheating chamber is connected with a spraying liquid storage tank, and the spraying liquid preheating chamber is communicated with the liquid separating cavity of the upper connecting seat.
3. The cylinder liner surface treatment apparatus according to claim 1, characterized in that: the bottom of the upper connecting seat and the top of the lower connecting seat are provided with two positioning grooves, and the liquid separating hole is arranged between the two positioning grooves; the top of the lower connecting seat is provided with a positioning groove; the top and the bottom of the support ring are respectively provided with a positioning groove.
4. A cylinder liner surface treatment method, characterized by comprising the steps of:
1) carrying out coarse grinding on an inner hole of the cylinder sleeve;
2) placing the cylinder liner into the cylinder liner surface treatment device of claim 1, heating to 520-550 ℃, introducing ammonia gas, and performing nitriding treatment;
3) stopping introducing ammonia gas, heating to 550-580 ℃, and injecting a spray liquid for soft nitriding treatment, wherein the spray liquid is triethanolamine;
4) and after cooling, finely grinding the inner hole of the cylinder sleeve.
5. The cylinder liner surface treatment method according to claim 4, characterized in that, in the step 1), after rough grinding, mixed slurry is coated on the inner hole of the cylinder liner, and the mixed slurry comprises, by weight, 10-20 parts of tin powder, 10-20 parts of zinc powder, 30-60 parts of aluminum powder, 5-10 parts of urea and 5-10 parts of kerosene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011079528.4A CN112139885B (en) | 2020-10-11 | 2020-10-11 | Cylinder sleeve surface treatment device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011079528.4A CN112139885B (en) | 2020-10-11 | 2020-10-11 | Cylinder sleeve surface treatment device and method |
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| CN112139885A true CN112139885A (en) | 2020-12-29 |
| CN112139885B CN112139885B (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116263398A (en) * | 2021-12-13 | 2023-06-16 | 深圳市宽田科技有限公司 | Detection tool for corrosion resistance of cylinder sleeve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009242854A (en) * | 2008-03-31 | 2009-10-22 | Koyo Thermo System Kk | Workpiece support tool for induction heating type carburizing treatment apparatus |
| CN103925097A (en) * | 2014-05-07 | 2014-07-16 | 广西玉柴机器股份有限公司 | Cylinder of diesel engine used for ship |
| CN206529516U (en) * | 2017-01-11 | 2017-09-29 | 湖南特科能热处理有限公司 | Nitriding furnace |
| CN207259580U (en) * | 2017-08-24 | 2018-04-20 | 安徽省岳西缸套有限公司 | cylinder sleeve deep ion nitriding device |
| CN208215084U (en) * | 2018-05-29 | 2018-12-11 | 中原内配集团股份有限公司 | A kind of differentiation honing cylinder jacket |
| CN109027587A (en) * | 2018-10-12 | 2018-12-18 | 孙栋 | A kind of large-scale weight bearing camera head |
| CN109404154A (en) * | 2018-11-23 | 2019-03-01 | 沪东重机有限公司 | Cylinder jacket, the preparation process of cylinder jacket and the engine using the cylinder jacket |
| CN110106502A (en) * | 2019-06-11 | 2019-08-09 | 天津磊峰实业有限公司 | A kind of automobile parts surface Hardening Treatment technique |
| CN211112173U (en) * | 2019-12-03 | 2020-07-28 | 天津天模热处理有限公司 | Nitriding furnace for nitriding surface of gear |
-
2020
- 2020-10-11 CN CN202011079528.4A patent/CN112139885B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009242854A (en) * | 2008-03-31 | 2009-10-22 | Koyo Thermo System Kk | Workpiece support tool for induction heating type carburizing treatment apparatus |
| CN103925097A (en) * | 2014-05-07 | 2014-07-16 | 广西玉柴机器股份有限公司 | Cylinder of diesel engine used for ship |
| CN206529516U (en) * | 2017-01-11 | 2017-09-29 | 湖南特科能热处理有限公司 | Nitriding furnace |
| CN207259580U (en) * | 2017-08-24 | 2018-04-20 | 安徽省岳西缸套有限公司 | cylinder sleeve deep ion nitriding device |
| CN208215084U (en) * | 2018-05-29 | 2018-12-11 | 中原内配集团股份有限公司 | A kind of differentiation honing cylinder jacket |
| CN109027587A (en) * | 2018-10-12 | 2018-12-18 | 孙栋 | A kind of large-scale weight bearing camera head |
| CN109404154A (en) * | 2018-11-23 | 2019-03-01 | 沪东重机有限公司 | Cylinder jacket, the preparation process of cylinder jacket and the engine using the cylinder jacket |
| CN110106502A (en) * | 2019-06-11 | 2019-08-09 | 天津磊峰实业有限公司 | A kind of automobile parts surface Hardening Treatment technique |
| CN211112173U (en) * | 2019-12-03 | 2020-07-28 | 天津天模热处理有限公司 | Nitriding furnace for nitriding surface of gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116263398A (en) * | 2021-12-13 | 2023-06-16 | 深圳市宽田科技有限公司 | Detection tool for corrosion resistance of cylinder sleeve |
| CN116263398B (en) * | 2021-12-13 | 2024-06-04 | 深圳市宽田科技有限公司 | Detection tool for corrosion resistance of cylinder sleeve |
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