CN109576636B - Metal workpiece nitriding treatment device - Google Patents
Metal workpiece nitriding treatment device Download PDFInfo
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- CN109576636B CN109576636B CN201910061039.7A CN201910061039A CN109576636B CN 109576636 B CN109576636 B CN 109576636B CN 201910061039 A CN201910061039 A CN 201910061039A CN 109576636 B CN109576636 B CN 109576636B
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- steel pipe
- box body
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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
- C23C8/26—Nitriding of ferrous surfaces
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to the technical field of metal workpiece processing equipment, in particular to a metal workpiece nitriding treatment device, which comprises a box body, a steel pipe main body, a supporting mechanism, a sealing mechanism, a connecting mechanism and a heating furnace, wherein the steel pipe main body is arranged on the box body; the steel pipe can be supported by the supporting mechanism, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved; each sliding column can be extruded out by rotating the screw rod, so that the contact is abutted against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the machining is finished, the sliding columns can be retracted into the steel pipe under the driving of the spring only by rotating the screw rod out, so that the rapid separation is realized; the outside ammonia can pass through the gas transmission cavity, around the even distributed steel pipe of exhaust head, increases the coverage of ammonia.
Description
Technical Field
The invention relates to the technical field of metal workpiece processing equipment, in particular to a metal workpiece nitriding treatment device.
Background
The nitriding treatment refers to a chemical heat treatment process for making nitrogen atoms penetrate into the surface layer of a workpiece in a certain medium at a certain temperature. The product after nitriding treatment has the characteristics of excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance.
Nitriding treatment has extensive application in steel pipe processing, but in order to guarantee that the steel pipe can stably arrange in the furnace body, can use anchor clamps to carry out the centre gripping to the steel pipe, this just can lead to the clamping part of steel pipe can't be effectual with ammonia contact, the nitriding treatment effect is not good. In view of this, the present invention provides a metal workpiece nitriding treatment apparatus, which has the following features:
(1) according to the metal workpiece nitriding treatment device, the steel pipe can be internally supported through the supporting mechanism, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved;
(2) according to the metal workpiece nitriding treatment device, each sliding column can be extruded out by rotating the screw rod, so that the contact is abutted against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the metal workpiece nitriding treatment device is machined, the sliding columns can be retracted into the steel pipe under the driving of the spring only by rotating the screw rod out, and the rapid separation is realized;
(3) according to the metal workpiece nitriding treatment device, external ammonia can pass through the gas transmission chamber and the periphery of the steel pipe with the uniformly distributed exhaust head, and the coverage surface of the ammonia is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a metal workpiece nitriding treatment device, which can support a steel pipe through the inside of a supporting mechanism, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved; each sliding column can be extruded out by rotating the screw rod, so that the contact is abutted against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the machining is finished, the sliding columns can be retracted into the steel pipe under the driving of the spring only by rotating the screw rod out, so that the rapid separation is realized; the outside ammonia can pass through the gas transmission cavity, around the even distributed steel pipe of exhaust head, increases the coverage of ammonia.
The technical scheme adopted by the invention for solving the technical problems is as follows: a metal workpiece nitriding treatment device comprises a box body, a steel pipe main body, a supporting mechanism, a sealing mechanism, a connecting mechanism and a heating furnace; the heating furnace is arranged at the bottom of the box body and used for heating the box body; the steel pipe main body is placed in the box body, the supporting mechanism is embedded in the steel pipe main body, and the supporting mechanism is used for supporting and abutting against the steel pipe main body; the side wall of the supporting mechanism is connected with the sealing mechanism through the connecting mechanism, and the sealing mechanism is used for blocking the opening of the box body; the connecting mechanism is used for adjusting the position of the supporting mechanism.
Specifically, the box one end open structure, open in the casing of box has the gas transmission cavity, the top surface of box is equipped with intake pipe and blast pipe, the intake pipe, the blast pipe with the gas transmission cavity communicates each other, the inner wall distribution of box has the exhaust head, the exhaust head with the gas transmission cavity communicates each other.
Specifically, the exhaust heads are distributed in an annular array, and the distribution length of the exhaust heads is the same as that of the steel pipe main body.
Specifically, the supporting mechanism comprises a box body, a first limiting mechanism and a second limiting mechanism, the first limiting mechanism and the second limiting mechanism are symmetrically distributed on two side walls of the box body, the end portions of the first limiting mechanism and the second limiting mechanism are attached to the inner wall of the steel pipe main body, and the first limiting mechanism and the second limiting mechanism are identical in structure.
Specifically, the first limiting mechanism comprises a limiting pipe, a sliding column, a contact and a spring, the limiting pipe is vertically arranged on the outer wall of the box body, the inside of the limiting pipe is connected with the sliding column in a sliding mode, the inner side end of the sliding column is hemispherical, the contact is arranged at the outer end part of the sliding column, and the contact is attached to the inner wall of the steel pipe main body; the outer wall of the sliding column is provided with a pressing plate, the outer side face of the pressing plate is fixed with the spring, and the spring is embedded into the limiting pipe.
Specifically, the connecting mechanism comprises a connecting pipe, a screw rod and a handle, one end of the connecting pipe is connected with the box body, the inner thread of the connecting pipe is connected with the screw rod, the handle is arranged at the outer end of the screw rod, and one end of the screw rod is hemispherical.
Specifically, the outer wall of the screw is attached to the inner end of the sliding column, and the displacement length of the sliding column is the same as the section radius of the screw.
Specifically, a blanking mechanism is arranged at the bottom inside the box body and comprises a first supporting plate, a blanking plate, a second supporting plate and a locking mechanism, the first supporting plate and the second supporting plate are respectively and vertically arranged at two sides inside the box body, one end of the blanking plate is rotatably connected with the first supporting plate, and a torsional spring structure is arranged at the rotating connection position; and two side walls of the other end of the blanking plate are symmetrically provided with locking mechanisms, and the locking mechanisms are in sliding connection with the second supporting plate.
Specifically, the inside of second backup pad is opened locking groove, the spout that has mutual intercommunication from top to bottom in proper order, the locking groove is upper portion rectangle, bottom toper structure, the spout is connected to the bottom in locking groove.
Specifically, locking mechanism includes baffle, latch segment, spring and box body, the width of box body with the width of spout is the same, the both sides slip embedding of box body has the latch segment, the inner wall of latch segment all is connected with the spring, the tip fixed connection of spring the baffle.
The invention has the beneficial effects that:
(1) according to the metal workpiece nitriding treatment device, the steel pipe can be internally supported through the supporting mechanism, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved;
(2) according to the metal workpiece nitriding treatment device, each sliding column can be extruded out by rotating the screw rod, so that the contact is abutted against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the metal workpiece nitriding treatment device is machined, the sliding columns can be retracted into the steel pipe under the driving of the spring only by rotating the screw rod out, and the rapid separation is realized;
(3) according to the metal workpiece nitriding treatment device, external ammonia can pass through the gas transmission chamber and the periphery of the steel pipe with the uniformly distributed exhaust head, and the coverage surface of the ammonia is increased.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a metal workpiece nitriding apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the connection structure of the support mechanism and the connection mechanism shown in FIG. 1;
FIG. 3 is a schematic structural view of the first limiting mechanism shown in FIG. 2;
FIG. 4 is a schematic structural view of the blanking mechanism shown in FIG. 1;
fig. 5 is a schematic structural view of the locking mechanism shown in fig. 4.
In the figure: 1. the gas transmission device comprises a box body, 11, a gas transmission chamber, 12, an exhaust pipe, 13, an exhaust head, 14, an air inlet pipe, 2, a steel pipe body, 3, a supporting mechanism, 31, a box body, 32, a first limiting mechanism, 321, a limiting pipe, 322, a sliding column, 3221, a pressing plate, 323, a contact, 324, a spring, 33, a second limiting mechanism, 4, a sealing mechanism, 41, an outer baffle, 42, a sealing plug, 43, a handle, 5, a connecting mechanism, 51, a connecting pipe, 52, a screw, 53, a handle, 6, a heating furnace, 7, a blanking mechanism, 71, a first supporting plate, 72, a blanking plate, 73, a second supporting plate, 731, a locking groove, 732, a sliding groove, 74, a locking mechanism, 741, a partition plate, 742, a locking block, 743, a spring, 744 and a box body.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-5, the metal workpiece nitriding treatment device of the present invention comprises a box body 1, a steel pipe main body 2, a supporting mechanism 3, a sealing mechanism 4, a connecting mechanism 5 and a heating furnace 6; the heating furnace 6 is arranged at the bottom of the box body 1, and the heating furnace 6 is used for heating the box body 1; the steel pipe main body 2 is placed in the box body 1, the supporting mechanism 3 is embedded in the steel pipe main body 2, and the supporting mechanism 3 is used for supporting and abutting against the steel pipe main body 2; the side wall of the supporting mechanism 3 is connected with the sealing mechanism 4 through the connecting mechanism 5, and the sealing mechanism 4 is used for sealing the opening of the box body 1; the connecting mechanism 5 is used for adjusting the position of the supporting mechanism 3.
Specifically, as shown in fig. 1, an opening structure is provided at one end of the box body 1, a gas transmission chamber 11 is provided in the shell of the box body 1, an air inlet pipe 14 and an air outlet pipe 12 are provided on the top surface of the box body 1, the air inlet pipe 14, the air outlet pipe 12 and the gas transmission chamber 11 are communicated with each other, an air outlet head 13 is distributed on the inner wall of the box body 1, the air outlet head 13 and the gas transmission chamber 11 are communicated with each other, the air outlet heads 13 are distributed in an annular array, and the distribution length of the air outlet heads 13 is the same as the length of the steel pipe body 2; the inlet and outlet of ammonia gas can be realized through the inlet pipe 14 and the exhaust pipe 12, and the uniform distribution of gas can be realized through each exhaust head 13.
Specifically, as shown in fig. 2, the supporting mechanism 3 includes a box body 31, a first limiting mechanism 32 and a second limiting mechanism 33, the first limiting mechanism 32 and the second limiting mechanism 33 are symmetrically distributed on two side walls of the box body 31, end portions of the first limiting mechanism 32 and the second limiting mechanism 33 are attached to an inner wall of the steel pipe main body 2, and the first limiting mechanism 32 and the second limiting mechanism 33 have the same structure; the steel pipe can be supported from the inside through the supporting mechanism 3, so that the outer wall of the pipe body is prevented from being shielded.
Specifically, as shown in fig. 3, the first limiting mechanism 32 includes a limiting pipe 321, a sliding column 322, a contact 323 and a spring 324, the limiting pipe 321 is vertically arranged on the outer wall of the box body 31, the inside of the limiting pipe 321 is slidably connected to the sliding column 322, the inner end of the sliding column 322 is hemispherical, the contact 323 is arranged at the outer end of the sliding column 322, and the contact 323 is attached to the inner wall of the steel pipe body 2; a pressing plate 3221 is arranged on the outer wall of the sliding column 322, the spring 324 is fixed on the outer side surface of the pressing plate 3221, and the spring 324 is embedded in the limiting pipe 321; the limiting mechanism can move in a telescopic mode, and therefore the limiting mechanism can be retracted when not used.
Specifically, as shown in fig. 2, the connection mechanism 5 includes a connection pipe 51, a screw 52 and a handle 53, one end of the connection pipe 51 is connected to the box 31, the screw 52 is connected to the inside of the connection pipe 51 through a thread, the handle 53 is disposed at the outer end of the screw 52, and one end of the screw 52 is hemispherical; the outer wall of the screw 52 is attached to the inner end of the sliding column 322, and the displacement length of the sliding column 322 is the same as the section radius of the screw 52; the connection mechanism 5 can adjust the retraction of the limit mechanism 32.
Specifically, as shown in fig. 4 and 5, a blanking mechanism 7 is arranged at the bottom inside the box body 1, the blanking mechanism 7 includes a first support plate 71, a blanking plate 72, a second support plate 73 and a locking mechanism 74, the first support plate 71 and the second support plate 73 are respectively vertically arranged at two sides inside the box body 1, one end of the blanking plate 72 is rotatably connected with the first support plate 71, and a torsional spring structure is arranged at the rotary connection position; two side walls of the other end of the blanking plate 72 are symmetrically provided with locking mechanisms 74, and the locking mechanisms 74 are slidably connected with the second supporting plate 73; a locking groove 731 and a sliding groove 732 which are communicated with each other are sequentially formed in the second supporting plate 73 from top to bottom, the locking groove 731 is of a rectangular upper part and a conical bottom structure, and the bottom of the locking groove 731 is connected with the sliding groove 732; the locking mechanism 74 includes a partition 741, a locking block 742, a spring 743 and a box 744, the width of the box 744 is the same as the width of the sliding groove 732, the locking block 742 is slidably embedded in both sides of the box 744, the inner walls of the locking block 742 are both connected with the spring 743, and the end of the spring 743 is fixedly connected with the partition 741; when the unloading is needed, under the action of gravity, the steel pipe main body 2 drops downwards, and the unloading board 72 is pushed downwards, one end of the unloading board 72 is connected with the rotation of the first supporting board 71, the other end of the unloading board 72 slides downwards, the locking mechanism 74 slides downwards along the first locking groove 731, the locking block 742 can be extruded by the tapered oblique edge of the locking groove 731, the locking block is taken into the box body 744, the spring 743 can be extruded, and then the sliding groove 732 is entered, so that the pipe body can be discharged along the inclined unloading board 72, the unloading board 72 resets under the driving of the torsion spring after being discharged, when the box body 741 moves to the locking groove 731 again, the spring 743 drives the locking block 742 to extend out, and the locking limit is realized by matching with the locking groove 731.
The steel pipe can be supported by the supporting mechanism 3, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved; each sliding column 322 can be extruded out by rotating the screw 52, so that the contact 323 abuts against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the processing is finished, the screw 52 is only needed to be rotated out, and each sliding column 322 can be retracted into the steel pipe under the driving of the spring 324, so that the rapid separation is realized; the outside ammonia can pass through the gas transmission chamber 11, the periphery of the steel pipe of the even distribution of exhaust head 13, increases the coverage of ammonia. The method specifically comprises the following steps:
(1) fixing a steel pipe to be processed, extending the supporting mechanism 3 into the middle of the steel pipe main body 2, then holding the handle 53 to drive the screw rod 52 to rotate, so that the screw rod 52 continuously rotates towards the connecting pipe 51 and the box body 31, when the end part of the screw rod 52 penetrates through the connecting pipe 51 and enters the box body 31, the sliding columns 322 are extruded towards two sides, the sliding columns 322 move outwards and compress the spring 324, and the contact 323 is driven to be attached to the inner wall of the steel pipe main body 2, so that the steel pipe is abutted; with the continuous screwing of the screw 52, the sliding columns 322 at all positions are extruded outwards, so that the stable supporting and limiting of the steel pipe are realized;
(2) after the steel pipe is fixed, the steel pipe is placed in the box body 1, then the outer baffle plate 41 is covered, so that the sealing plug 42 is embedded into the opening of the box body 1, the box body 1 is blocked, then the heating furnace 6 is started, the box body 1 is heated through the heating furnace 6, external ammonia enters the gas transmission chamber 11 through the gas inlet pipe 14, and then the ammonia is dispersed into the box body 1 through the exhaust heads 13, so that the ammonia covers all positions of the steel pipe, and the nitriding reaction is completed under the action of high temperature;
(3) after the processing is finished, the waste gas in the box body 1 is exhausted through the exhaust pipe 12, then the outer baffle 41 is taken out, the steel pipe is further taken out, the screw rod 52 is reversed, and each sliding column 322 is taken into the limiting pipe 321 under the driving of the spring 324, so that the steel pipe is separated from the supporting mechanism.
According to the invention, the steel pipe can be supported by the supporting mechanism 3, so that the outer wall of the steel pipe is not shielded, the steel pipe can be fully contacted with ammonia gas, and the nitriding treatment effect is improved; each sliding column 322 can be extruded out by rotating the screw 52, so that the contact 323 abuts against the steel pipe, the operation is simple and convenient, the fixing effect is good, and after the processing is finished, the screw 52 is only needed to be rotated out, and each sliding column 322 can be retracted into the steel pipe under the driving of the spring 324, so that the rapid separation is realized; the outside ammonia can pass through the gas transmission chamber 11, the periphery of the steel pipe of the even distribution of exhaust head 13, increases the coverage of ammonia.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A metal workpiece nitriding treatment device is characterized in that: comprises a box body (1), a steel pipe main body (2), a supporting mechanism (3), a sealing mechanism (4), a connecting mechanism (5) and a heating furnace (6); the heating furnace (6) is arranged at the bottom of the box body (1), and the heating furnace (6) is used for heating the box body (1); the steel pipe main body (2) is placed in the box body (1), the supporting mechanism (3) is embedded in the steel pipe main body (2), and the supporting mechanism (3) is used for supporting and abutting against the steel pipe main body (2); the side wall of the supporting mechanism (3) is connected with the sealing mechanism (4) through the connecting mechanism (5), and the sealing mechanism (4) is used for blocking the opening of the box body (1); the connecting mechanism (5) is used for adjusting the position of the supporting mechanism (3);
the supporting mechanism (3) comprises a box body (31), a first limiting mechanism (32) and a second limiting mechanism (33), the first limiting mechanism (32) and the second limiting mechanism (33) are symmetrically distributed on two side walls of the box body (31), the end parts of the first limiting mechanism (32) and the second limiting mechanism (33) are attached to the inner wall of the steel pipe main body (2), and the first limiting mechanism (32) and the second limiting mechanism (33) are identical in structure;
the first limiting mechanism (32) comprises a limiting pipe (321), a sliding column (322), a contact (323) and a spring (324), the limiting pipe (321) is vertically arranged on the outer wall of the box body (31), the inside of the limiting pipe (321) is connected with the sliding column (322) in a sliding mode, the inner side end of the sliding column (322) is hemispherical, the contact (323) is arranged at the outer end of the sliding column (322), and the contact (323) is attached to the inner wall of the steel pipe main body (2); a pressing plate (3221) is arranged on the outer wall of the sliding column (322), the spring (324) is fixed on the outer side surface of the pressing plate (3221), and the spring (324) is embedded in the limiting pipe (321);
the connecting mechanism (5) comprises a connecting pipe (51), a screw rod (52) and a handle (53), one end of the connecting pipe (51) is connected with the box body (31), the inner thread of the connecting pipe (51) is connected with the screw rod (52), the handle (53) is arranged at the outer end of the screw rod (52), and one end of the screw rod (52) is hemispherical.
2. A metal workpiece nitriding treatment apparatus according to claim 1, characterized in that: the utility model discloses a gas transmission box, including box (1), box (1) one end open structure, it has gas transmission cavity (11) to open in the casing of box (1), the top surface of box (1) is equipped with intake pipe (14) and blast pipe (15), intake pipe (14) blast pipe (15) with gas transmission cavity (11) communicate each other, the inner wall distribution of box (1) has exhaust head (13), exhaust head (13) with gas transmission cavity (11) communicate each other.
3. A metal workpiece nitriding treatment apparatus according to claim 2, characterized in that: the exhaust heads (13) are distributed in an annular array, and the distribution length of the exhaust heads (13) is the same as that of the steel pipe main body (2).
4. A metal workpiece nitriding treatment apparatus according to claim 1, characterized in that: the outer wall of the screw rod (52) is attached to the inner end of the sliding column (322), and the displacement length of the sliding column (322) is the same as the section radius of the screw rod (52).
5. A metal workpiece nitriding treatment apparatus according to claim 2, characterized in that: a blanking mechanism (7) is arranged at the bottom inside the box body (1), the blanking mechanism (7) comprises a first supporting plate (71), a blanking plate (72), a second supporting plate (73) and a locking mechanism (74), the first supporting plate (71) and the second supporting plate (73) are respectively vertically arranged at two sides inside the box body (1), one end of the blanking plate (72) is rotatably connected with the first supporting plate (71), and a torsional spring structure is arranged at the rotating connection position; two side walls of the other end of the blanking plate (72) are symmetrically provided with locking mechanisms (74), and the locking mechanisms (74) are in sliding connection with the second supporting plate (73).
6. A metal workpiece nitriding treatment apparatus according to claim 5, characterized in that: the inside of second backup pad (73) is opened locking groove (731), spout (732) that have mutual intercommunication from top to bottom in proper order, locking groove (731) are upper portion rectangle, bottom toper structure, spout (732) are connected to the bottom of locking groove (731).
7. A metal workpiece nitriding treatment apparatus according to claim 6, characterized in that: the locking mechanism (74) comprises a partition plate (741), a locking block (742), a spring (743) and a box body (744), the width of the box body (744) is the same as that of the sliding groove (732), the locking block (742) is slidably embedded into two sides of the box body (744), the inner wall of the locking block (742) is connected with the spring (743), and the end of the spring (743) is fixedly connected with the partition plate (741).
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| CN201910061039.7A CN109576636B (en) | 2019-01-23 | 2019-01-23 | Metal workpiece nitriding treatment device |
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| CN201910061039.7A CN109576636B (en) | 2019-01-23 | 2019-01-23 | Metal workpiece nitriding treatment device |
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| CN109576636B true CN109576636B (en) | 2020-12-01 |
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| CN110000504A (en) * | 2019-05-15 | 2019-07-12 | 贵州大学 | A kind of welding platform with adjustable apparatus |
| CN110029303A (en) * | 2019-05-21 | 2019-07-19 | 南京林业大学 | A kind of Nitrizing Treatment device of automobile metal material |
| CN114849582A (en) * | 2022-05-23 | 2022-08-05 | 莱芜钢铁集团泰东实业有限公司 | Waste water desulfurization device for production of rotary kiln factory |
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| CN103261467A (en) * | 2010-11-30 | 2013-08-21 | 东洋炭素株式会社 | Method for carburizing tantalum container |
| CN205576258U (en) * | 2016-04-08 | 2016-09-14 | 洛阳Lyc轴承有限公司 | Bearing ring carburization thermal treatment shelve with square combination |
| CN107327160A (en) * | 2017-08-30 | 2017-11-07 | 云南工程建设总承包公司 | Adjustable support with embedded cradle |
| CN207259577U (en) * | 2017-08-04 | 2018-04-20 | 无锡市奕珺金属改性技术有限公司 | Caliper brake piston receiver and workpiece accommodate equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102306570B1 (en) * | 2016-06-01 | 2021-09-30 | 어플라이드 머티어리얼스, 인코포레이티드 | High pressure ammonia nitridation of tunnel oxide for 3dnand applications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261467A (en) * | 2010-11-30 | 2013-08-21 | 东洋炭素株式会社 | Method for carburizing tantalum container |
| CN205576258U (en) * | 2016-04-08 | 2016-09-14 | 洛阳Lyc轴承有限公司 | Bearing ring carburization thermal treatment shelve with square combination |
| CN207259577U (en) * | 2017-08-04 | 2018-04-20 | 无锡市奕珺金属改性技术有限公司 | Caliper brake piston receiver and workpiece accommodate equipment |
| CN107327160A (en) * | 2017-08-30 | 2017-11-07 | 云南工程建设总承包公司 | Adjustable support with embedded cradle |
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