CN107883102B - A kind of smelting equipment - Google Patents
A kind of smelting equipment Download PDFInfo
- Publication number
- CN107883102B CN107883102B CN201711098456.6A CN201711098456A CN107883102B CN 107883102 B CN107883102 B CN 107883102B CN 201711098456 A CN201711098456 A CN 201711098456A CN 107883102 B CN107883102 B CN 107883102B
- Authority
- CN
- China
- Prior art keywords
- tube body
- sealant
- sealing element
- support member
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003723 Smelting Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000000565 sealant Substances 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims description 20
- 239000010935 stainless steel Substances 0.000 claims description 20
- 239000003292 glue Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/10—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the extremity of the pipe being screwed into the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/088—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed using an elastic grommet between the extremity of the tube and the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of smelting equipments, including furnace shell, burner hearth, the intake section on burner hearth, the opening matched on furnace shell with the intake section and the air inlet pipe matched with the intake section；The intake section is equipped with connecting cavity, which is equipped with air inlet；It is equipped with sealing element in the connecting cavity, the first sealant is equipped between the sealing element and the connecting cavity bottom surface, the second sealant is equipped between the sealing element and the air inlet pipe.Pass through the cooperation between sealing element, the first sealant, the second sealant in the present invention, effectively realize the sealing cooperation between air inlet pipe and connecting cavity, the case where guarantee is not in gas leakage between the two, it realizes and remains vacuum state inside burner hearth, realize the refinery by de-gassing for the fused materials in burner hearth.
Description
Technical field
The invention belongs to stainless steel manufacturing technology fields, more particularly, to a kind of smelting equipment.
Background technique
Stainless steel is the weak corrosive medium such as resistance to air, steam, water or the steel grade with rustless property.When the nitrogen member in stainless steel
When element is higher, the corrosion resistance of stainless steel will obtain the raising of high degree.Therefore in stainless steel preparation process, it will usually straight
It connects and is passed through nitrogen into the molten stainless steel of molten condition, in order to improve working efficiency and improve in the same reaction time in stainless steel
Nitrogen content, occur being directly connected to nitrogen inlet duct on smelting furnace in existing preparation method, to smelt in vacuum induction
During, while nitrogen is injected, guarantee that nitrogen content can effectively be higher than 3.5wt% or more in the stainless steel being prepared, prepares
Intensity, pull resistance, the corrosion resistance of obtained stainless steel tube are relatively strong.
But in existing equipment, the sealing effect between nitrogen inlet duct and smelting furnace is poor, is easy after being used for a long time
The service life of the phenomenon that leaking air, equipment is short.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, provides that one is smelting equipments with long service life.
To achieve the goals above, it the invention adopts the following technical scheme: a kind of smelting equipment, including furnace shell, burner hearth, sets
In intake section, the opening that is matched on furnace shell with the intake section and the air inlet matched with the intake section on burner hearth
Pipe；The intake section is equipped with connecting cavity, which is equipped with air inlet；Sealing element is equipped in the connecting cavity, it is described
It is equipped with the first sealant between sealing element and the connecting cavity bottom surface, it is close that second is equipped between the sealing element and the air inlet pipe
Sealing；It is evenly spaced on the sealing element lower surface that the multiple annular grooves matched with the first seal are distributed with.
By the way that sealing element is arranged between air inlet pipe and connecting cavity in the present invention, while it being additionally arranged the first sealant and the second sealant,
Triple seal is achieved the effect that, even if remaining seal member also can be real when the leakproofness failure of wherein one or two
Sealing between existing air inlet pipe and connecting cavity cooperates, thus being used for a long time will not gas leakage the case where, high degree prolongs
The service life of long equipment, avoids environmental pollution and endangers the health of worker, have the case where avoiding the occurrence of helium leak
Good safety；Made by the setting of groove so that there are more spaces to accommodate the first sealant for sealing element lower surface
Be connected between sealing element and the first sealant it is more secured, cooperate more closely, favorable sealing property.
Further, evenly spaced be distributed with mostly matches with second sealant on the sealing element upper surface
Multi-turn open slot；Made by the setting of open slot so that there are more spaces to accommodate the second sealant for sealing element upper surface
Be connected between sealing element and the second sealant it is more secured, cooperate more closely, favorable sealing property.
Further, the sealing element is soft graphite Composition spacer, first sealant and the second sealant difference
For refractory seals glue；The high temperature resistance of above-mentioned material is fabulous, thus even if after long-term use, it will not be because of high temperature ring
Border and there is situations such as hardening, cracking, guarantee that above-mentioned two material plays good sealing function always, and be hardly damaged, use
Service life is long.
Further, the air inlet pipe includes the first tube body, the second tube body and for connecting being connected with the intake section
The connector of first tube body and the second tube body.
Further, first tube body is stainless steel tube, and second tube body is rubber tube；Due to the work temperature of burner hearth
Degree is very high, so that the first tube body being connected with interconnecting piece will will receive the influence of high temperature, so set the first tube body to not
Become rusty steel pipe, so that the first tube body not will receive the influence of high temperature, the case where being not in the deformation of the first tube body is further ensured that the
Sealing cooperation between one tube body and intake section；And the second tube body at a distance from burner hearth farther out, without consider because high temperature cause
Deformation or thawing the case where, so rubber tube can be used in the second tube body, not only save cost, and rubber tube has biggish shape
The ability of change while reducing equipment cost, further increases equipment so that the leakproofness between the first tube body is preferable
Sealing performance.
Further, first tube body is stainless steel tube, and second tube body is that pvc pipe or PPC are managed；Due to burner hearth
Operating temperature is very high, so that the first tube body being connected with interconnecting piece will will receive the influence of high temperature, so the first tube body is set
It is set to stainless steel tube, so that the first tube body not will receive the influence of high temperature, it is not in the case where the first tube body deforms, further
Guarantee the sealing cooperation between the first tube body and intake section；And the second tube body at a distance from burner hearth farther out, without considering because high
Equipment cost is effectively reduced so pvc pipe or PPC pipe can be used in the second tube body in the case where deformation caused by temperature or thawing.
Further, the connector includes joint body and the flared section set on joint body one end, the joint body
It is equipped with the first cavity passed through for second tube body, the flared section is equipped with second passed through for second tube body and leads to
Chamber；The joint body is equipped with the first cavity passed through for second tube body, and the flared section is equipped with for second pipe
The second cavity that body passes through；The joint body and the first tube body threaded are symmetrically set on the flared section side wall
There are the first V-shaped groove and the second V-shaped groove；The presence of flared section, in the insertion connector that the second tube body is more easier, and by
In the presence of the first V-shaped groove and the second V-shaped groove, so that flared section can produce certain deformation, guarantee that flared section can insert
Enter to the first tube body；And flared section in the first tube body when, the second tube body can be compressed, realize the first tube body and second
Tight fit between tube body, favorable sealing property.
Further, one end that second tube body is matched with the flared section is equipped with support member, and the support member is set to should
In second tube body, and support member is ring structure, and the outer diameter of the support member is greater than the outer diameter of second tube body；The flared section is most
Large diameter is greater than the outer diameter of the support member, and the minimum diameter of flared section is equal to the outer diameter of the support member；Due to being provided with support member, and
Support member is arranged in the second tube body, and when connector is connect with the second tube body, connector will inwardly squeeze the second tube body, and support member is outer
Diameter is greater than the internal diameter of the second tube body, so that support member will be outwardly against the second tube body, so that in the second tube wall and connector
By the extruding force in two opposite directions between wall, for tradition interference fit is compared in cooperation between the second tube body and connector,
Tightness improves more than one times, ensure that after being used for a long time, the case where leakage will not occurs.
In conclusion the invention has the following advantages that achieved the effect that triple seal between air inlet pipe and connecting cavity,
Even if remaining seal member also can be realized between air inlet pipe and connecting cavity when the leakproofness failure of wherein one or two
Sealing cooperation, thus even if be used for a long time will not gas leakage the case where, the service life of the extension equipment of high degree avoids out
It the case where existing helium leak, avoids environmental pollution and endangers the health of worker, there is good safety；And pass through groove
Setting so that being connected firmly between sealing element and connecting cavity, sealing performance is greatly improved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the enlarged drawing at the B in Fig. 1.
Fig. 3 is the structural schematic diagram of center tap of the present invention.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the enlarged drawing in Fig. 1 at D.
Specific embodiment
In order to make those skilled in the art better understand the present invention program, below in conjunction in the embodiment of the present invention,
The technical scheme in the embodiment of the invention is clearly and completely described.
If Fig. 1-5 shows, a kind of smelting equipment including furnace shell 1, burner hearth 2, the intake section 3 on burner hearth 2, is set to furnace shell
The upper opening 4 matched with the intake section and the air inlet pipe 5 matched with the intake section；The intake section 3 is by the burner hearth
Top, which directs out, to be extended to form, and the opening 4 is circle, is opened in the furnace shell top, the intake section end is located at should
In opening；The intake section 3 is equipped with cylindrical connecting cavity, which is equipped with circular air inlet 31, the air inlet
It is connected with the burner hearth；The air inlet pipe 5 includes the first tube body 51 and the second tube body 52, the first tube body 51 and the interconnecting piece
Threaded；Further, between first tube body and connecting cavity be equipped with ring structure sealing element, and sealing element with it is described
It is equipped with the first sealant 7 between connecting cavity bottom surface, the second sealant 8 is equipped between the sealing element 6 and the air inlet pipe 5；Tool
Body, the sealing element is directly to purchase obtained soft graphite Composition spacer on the market, which can bear high temperature, thus
Under the hot environment of smelting, good sealing function can be also played, and be hardly damaged, long service life；First sealing
Layer and the second sealant are the refractory seals glue being directly commercially available on the market, and refractory seals glue can realize that sealing element is distinguished
Secured connection between connecting cavity, the first tube body, and in the case where burner hearth reaction temperature is high, refractory seals glue is not yet
Easily there is the case where hardening cracking or degumming, realizes good sealing effect；Adhesive layer carries out the junction of the two effectively close
Envelope, further decreases the possibility of gas leakage.
Preferably, first tube body 51 is stainless steel tube, i.e., the material of first tube body is stainless steel；Described second
Tube body 52 is rubber tube, i.e., the material of second tube body is rubber；Certainly, in other embodiments, second tube body 52
Can be managed for pvc pipe or PPC, i.e., this and the material of tube body is PVC or PPC；Further, it is set on 6 lower surface of sealing element
There are multiple annular grooves 61, the distance between these multiple annular grooves 61 are adjacent is set as equal, when sealing element and connecting cavity
When being connected, the first sealant 7 can be more contained in groove, effectively improve being connected firmly between sealing element and connecting cavity
Degree；Likewise, 6 upper surface of sealing element is equipped with multi-turn open slot 62, the spacing between adjacent apertures slot 62 is set as equal,
When sealing element is connect with the first tube body, these open slots 62, which can be accommodated more, can more accommodate the second sealant 8, effectively
Improve the firmness of the connection between sealing element and connecting cavity.
Second tube body 52 is connected by connector 53 with the first tube body, specifically, the connector 53 is made of stainless steel,
The connector 53 includes joint body 531 and the flared section 532 set on joint body one end, and the joint body 531, which is equipped with, to be supplied
The first cavity 533 that second tube body passes through, the flared section 532 are equipped with the second cavity passed through for second tube body
534, and the first V-shaped groove 536 and the second V-shaped groove 537 are symmetrically equipped on 532 side wall of the flared section；Specifically, the flaring
Section 532 is the two halves cylindrical shape stainless steel plate being symmetrical set, and flared section 532 is the upper difference at left and right sides of joint body
After opening a seam, two pieces of stainless steel plate outward bendings are formed, the spacing between two stainless steel plates just constitutes the first above-mentioned V
Shape slot 536 and the second V-shaped groove 537, when flared section is squeezed by external force, the first V-shaped groove 536 and the second V-shaped groove 537 will disappear
Lose, two pieces of semi-cylindrical shaped stainless steel plates will scrabble up cylindrical shape again.
Further, the joint body 531 and 51 threaded of the first tube body, one end of second tube body 52
It is equipped with support member 9, the one end matched after being specially inserted into connector 53 with flared section；The support member 9 is made of plastics,
It for ring structure, and is set in second tube body, and the outer diameter of the support member 9 is greater than the outer diameter of second tube body 52；As excellent
Choosing, the maximum inner diameter of the flared section 532 are greater than the outer diameter of the support member 9, and the minimum diameter of flared section 632 is equal to the support member
9 outer diameter；To which when connector is connected with the first tube body, flared section and support member will tightly squeeze the second tube body, the second pipe is realized
Excellent sealing between body and connector；The equipment is preferably vacuum melting furnace, other specific structures of vacuum melting furnace are existing
Technology can refer to structure disclosed in " vacuum induction melting furnace " disclosed in Chinese patent CN101347836B.
Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment should fall within the scope of the present invention.
Claims (4)
1. a kind of smelting equipment, including furnace shell (1), burner hearth (2), the intake section (3) being set on burner hearth (2), be set on furnace shell with
The opening (4) that the intake section matches and the air inlet pipe (5) matched with the intake section；It is characterized by: the intake section
(3) it is equipped with connecting cavity, which is equipped with air inlet (31)；Sealing element (6) are equipped in the connecting cavity, the sealing
The first sealant (7) are equipped between part (6) and the connecting cavity bottom surface, are set between the sealing element (6) and the air inlet pipe (5)
There are the second sealant (8)；Evenly spaced be distributed with matches with first sealant (7) on sealing element (6) lower surface
The multiple annular grooves (61) closed；It is evenly spaced on sealing element (6) upper surface that the second sealant (8) phase is distributed with
The multi-turn open slot (62) of cooperation；The air inlet pipe (5) includes the first tube body (51), the second tube body being connected with the intake section
(52) and the connector (53) for connecting first tube body and the second tube body；First tube body (51) is stainless steel tube, described
Second tube body (52) is rubber tube；The connector (53) includes joint body (531) and the flared section set on joint body one end
(532), the joint body (531) is equipped with the first cavity (533) passed through for second tube body, the flared section
(532) it is equipped with the second cavity (534) passed through for second tube body；The joint body (531) and first tube body
(51) threaded.
2. smelting equipment according to claim 1, it is characterised in that: the sealing element (6) is soft graphite Composition spacer,
First sealant (7) and the second sealant (8) are respectively refractory seals glue.
3. smelting equipment according to claim 1, it is characterised in that: be symmetrically equipped on flared section (532) side wall
First V-shaped groove (536) and the second V-shaped groove (537).
4. smelting equipment according to claim 3, it is characterised in that: second tube body (52) matches with the flared section
One end be equipped with support member (9), the support member (9) be set to second tube body in, and support member be ring structure, the support member (9)
Outer diameter is greater than the outer diameter of second tube body (52)；The maximum inner diameter of the flared section (532) is greater than the outer of the support member (9)
Diameter, the minimum diameter of flared section (532) are equal to the outer diameter of the support member (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098456.6A CN107883102B (en) | 2017-11-09 | 2017-11-09 | A kind of smelting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098456.6A CN107883102B (en) | 2017-11-09 | 2017-11-09 | A kind of smelting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107883102A CN107883102A (en) | 2018-04-06 |
| CN107883102B true CN107883102B (en) | 2019-04-02 |
Family
ID=61779816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098456.6A Active CN107883102B (en) | 2017-11-09 | 2017-11-09 | A kind of smelting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883102B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347836A (en) * | 2008-08-29 | 2009-01-21 | 厦门钨业股份有限公司 | Vacuum induction smelting furnance |
| CN101761718A (en) * | 2008-12-26 | 2010-06-30 | 上海汽车空调配件有限公司 | Rubber pipe riveted structure of air-conditioner pipeline and riveting method thereof |
| CN105567991A (en) * | 2014-10-17 | 2016-05-11 | 宁波创润新材料有限公司 | Smelting device |
| CN107747025A (en) * | 2017-11-02 | 2018-03-02 | 浙江双森金属科技股份有限公司 | A kind of stainless steel tube and its processing technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2613120A1 (en) * | 2005-06-27 | 2007-01-04 | Swagelok Company | Tube fitting |
-
2017
- 2017-11-09 CN CN201711098456.6A patent/CN107883102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347836A (en) * | 2008-08-29 | 2009-01-21 | 厦门钨业股份有限公司 | Vacuum induction smelting furnance |
| CN101761718A (en) * | 2008-12-26 | 2010-06-30 | 上海汽车空调配件有限公司 | Rubber pipe riveted structure of air-conditioner pipeline and riveting method thereof |
| CN105567991A (en) * | 2014-10-17 | 2016-05-11 | 宁波创润新材料有限公司 | Smelting device |
| CN107747025A (en) * | 2017-11-02 | 2018-03-02 | 浙江双森金属科技股份有限公司 | A kind of stainless steel tube and its processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107883102A (en) | 2018-04-06 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190107 Address after: 325024 No. 11, Xian Fang lane, New Town Street, Longwan District, Wenzhou, Zhejiang Applicant after: Wang Minxiao Address before: 323800 Dongcun No. 26, Zhangcun Township, Qingyuan County, Lishui City, Zhejiang Province Applicant before: Wu Wenjun |
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