CN106399999B - A kind of recycling component for metal casting surface treatment - Google Patents
A kind of recycling component for metal casting surface treatment Download PDFInfo
- Publication number
- CN106399999B CN106399999B CN201610795819.0A CN201610795819A CN106399999B CN 106399999 B CN106399999 B CN 106399999B CN 201610795819 A CN201610795819 A CN 201610795819A CN 106399999 B CN106399999 B CN 106399999B
- Authority
- CN
- China
- Prior art keywords
- reaction tank
- connect
- solenoid valve
- recovery pond
- liquid outlet
- 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
Classifications
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/86—Regeneration of coating baths
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Accessories For Mixers (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of recycling components for metal casting surface treatment, the passivator recycling component includes buffer pool, the buffer pool is connect by recovery channel with reaction tank, the second solenoid valve opened/closed for controlling recovery channel is equipped in the junction of the recovery channel and reaction tank, the signal input part of second solenoid valve and the signal output end of concentration sensor connect, filter screen is installed in the buffer pool, outflow port is offered in the bottom of buffer pool, the outflow port is connect with recovery pond；Agitating device is installed in recovery pond, the second concentration sensor and third concentration sensor for detecting passivating agent concentration in recovery pond are also equipped in the recovery pond, second concentration sensor is connect with the second storage vat, and third concentration sensor is connect with the 4th solenoid valve.
Description
Technical field
The present invention relates to metal casting process units fields, specifically, being related specifically to a kind of for metal casting table
The recycling component of surface treatment.
Background technique
Passivation is so that metal surface is converted into the state for being not easy to be oxidized, and delay the method for corrosion of metal speed.It is existing
Some passivating methods are put into the reaction tank for being contained with passivator using by metal casting, the defect of this passivating method
It is:
1, since passivation reaction in reaction tank using excessive passivator is put into, these passivator are in passivation reaction
After can generate a large amount of low concentration passivator residual, if being handled it or being recycled, higher cost；If directly arranging
It puts, then would seriously pollute the environment.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of returning for metal casting surface treatment
Component is received, to solve problems of the prior art.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of recycling component for metal casting surface treatment, including passivator recycle component, the passivator recycling
Component includes buffer pool, and the buffer pool is connect by recovery channel with reaction tank, in the company of the recovery channel and reaction tank
The place of connecing is equipped with the second solenoid valve opened/closed for controlling recovery channel, and the signal input part and concentration of second solenoid valve pass
The signal output end of sensor connects, and is equipped with filter screen in the buffer pool, offers outflow port in the bottom of buffer pool, described
Outflow port is connect with recovery pond；
Agitating device is installed in the recovery pond, the agitating device includes the stirring electricity being installed on outside recovery pond
Machine, the output end of the stirring motor and the stirring axis connection being installed on inside recovery pond, if being equipped on the agitating shaft
Dry stirring fin, be also equipped in the recovery pond the second concentration sensor for detecting passivating agent concentration in recovery pond and
Third concentration sensor, second concentration sensor are connect with the second storage vat, third concentration sensor and the 4th solenoid valve
Connection；
Second storage vat includes the third cavity for storing high concentration passivator, in the bottom of the third cavity
Equipped with liquid outlet, and liquid outlet is connect by liquid outlet pipe with recovery pond, is pacified in the junction of the liquid outlet pipe and recovery pond
Equipped with the third solenoid valve opened/closed for controlling liquid outlet pipe, the signal input part of the third solenoid valve and second dense
Spend the signal output end connection of sensor；
The recovery pond also has the reflux line connecting with the first storage vat, is equipped with the 4th in the reflux line
Solenoid valve, the 4th solenoid valve are connect with the signal output end of third concentration sensor.
Further, the buffer pool and recovery pond are made of ceramic material.
Further, it is equipped with ball bearing in the junction of the output end of the stirring motor and recovery pond, in the rolling
Sealing ring is equipped in pearl bearing.
Compared with prior art, beneficial effects of the present invention are as follows:
1. by installing concentration sensor in reaction tank, when the passivating agent concentration that concentration sensor detects is lower than default
When value, reaction tank is discharged in the passivator of low concentration, to guarantee product quality.
2. by setting buffer pool and recovery pond, the passivator of the low concentration to handle reaction tank discharge makes its recovery
To the available concentration of passivation reaction, reduces costs and avoid directly excluding and polluting environment.
3. avoiding liquid-level switch by using the mounting structure of contactless liquid-level switch and directly being connect with passivator
Touching, improves the service life of liquid-level switch.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the recycling component of the present invention for metal casting surface treatment.
Fig. 2 is the structural schematic diagram of metal casting surface passivation component of the present invention.
Fig. 3 is the structural schematic diagram that passivator of the present invention recycles component.
Figure label explanation: reaction tank 1, station slot 2, substrate 3, postive stop baffle 4, pressure sensor 5, the first concentration sensing
Device 6, the first storage vat 7, liquid outlet pipe 8, cross slide way 9, slide plate 10, connecting rod 11, driving motor 12, cylinder 13, push rod 14, electricity
Magnet 15, limit sieve plate 16, float plate 17, liquid-level switch 18, buffer pool 19, recovery channel 20, filter screen 21, outflow port 22,
Recovery pond 23, stirring motor 24, agitating shaft 25, stirring fin 26, the second concentration sensor 27, third concentration sensor 28, the
Two storage vats 29, liquid outlet pipe 30, reflux line 31.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to figure 1, figure 2 and figure 3, a kind of recycling component for metal casting surface treatment of the present invention, including
Metal casting blunting component and passivator recycle component；
The metal casting blunting component includes reaction tank 1, and station slot 2 is fixedly installed in the reaction tank 1, described
Station slot 2 includes the substrate 3 for placing metal casting, the postive stop baffle 4 upwardly extended is equipped in the two sides of substrate 3, in institute
The bottom for stating substrate 3 is equipped with for detecting pressure sensor 5 that whether metal casting is in place and dense for detecting passivator
First concentration sensor 6 of degree；
The reaction tank 1 is connected with the first storage vat 7, and first storage vat 7 includes first for storing passivator
Cavity is equipped with liquid outlet in the bottom of first cavity, and liquid outlet is connect by liquid outlet pipe 8 with reaction tank 1, described
The junction of liquid outlet pipe 8 and reaction tank 1 is equipped with the first solenoid valve opened/closed for controlling liquid outlet pipe 8；
It is equipped with handling device in the top of the reaction tank 1, the handling device includes the branch for being set to 1 top of reaction tank
Frame is welded with cross slide way 9 on the bracket, offers guide groove in the inside of cross slide way 9, lives between the guide groove
Dynamic to be connected with slide plate 10, the slide plate 10 is connect by connecting rod 11 with the driving motor 12 being installed on bracket, and the slide plate
10 can move left and right under the promotion of driving motor 12 along guide groove；Cylinder 13, the cylinder are installed on the slide plate 10
13 are connect by push rod 14 with the electromagnet 15 for grabbing metal casting, the signal input of the driving motor 12 and cylinder 13
End is connect with the signal output end of pressure sensor 5；
The second cavity is equipped in the side wall of the reaction tank 1, the second cavity is connected to by inflow hole with reaction tank 1,
Limit sieve plate 16 is fixedly installed in second cavity, the limit sieve plate 16 is located at the top of inflow hole, in limit sieve plate
The float plate 17 that can be moved up and down along the inner wall of second cavity is installed in second cavity of 16 tops, in the float plate
17 top is equipped with liquid-level switch 18, and the signal output end of the liquid-level switch 18 and the signal input part of the first solenoid valve connect
It connects；
The passivator recycling component includes buffer pool 19, and the buffer pool 19 is connected by recovery channel 20 and reaction tank 1
It connects, is equipped with the second electromagnetism opened/closed for controlling recovery channel 20 in the junction of the recovery channel 20 and reaction tank 1
Valve, the signal input part of second solenoid valve and the signal output end of concentration sensor connect, and are equipped in the buffer pool 19
Strainer 21 offers outflow port 22 in the bottom of buffer pool 19, and the outflow port 22 is connect with recovery pond 23；
Agitating device is installed in the recovery pond 23, the agitating device includes being installed on stirring outside recovery pond 23
Motor 24 is mixed, the output end of the stirring motor 24 is connect with the agitating shaft 25 being installed on inside recovery pond 23, in the stirring
Several stirring fins 26 are installed on axis 25, are also equipped in the recovery pond 23 dense for detecting passivator in recovery pond 23
The second concentration sensor 27 and third concentration sensor 28 of degree, second concentration sensor 27 and the second storage vat 29 connect
It connects, third concentration sensor 28 is connect with the 4th solenoid valve；
Second storage vat 29 includes the third cavity for storing high concentration passivator, at the bottom of the third cavity
Portion is equipped with liquid outlet, and liquid outlet is connect by liquid outlet pipe 30 with recovery pond 23, in the liquid outlet pipe and recovery pond 23
Junction is equipped with the third solenoid valve opened/closed for controlling liquid outlet pipe 30, the signal input of the third solenoid valve
End is connect with the signal output end of the second concentration sensor 27；
The recovery pond 23 also has the reflux line 31 connecting with the first storage vat 7, pacifies in the reflux line 31
Equipped with the 4th solenoid valve, the 4th solenoid valve is connect with the signal output end of third concentration sensor 28.
A kind of metal casting surface passivation method, includes the following steps:
1) electromagnet grabs metal casting at initial station, and driving motor is by driving the guiding of slide plate transversely guide rail
Slot is mobile, and cylinder, electromagnet and metal casting are moved to the top of reaction tank；
2) cylinder starts, and electromagnet and metal casting are moved down, until the contact of the substrate of metal casting and station slot,
Pressure sensor below substrate detects signal, and sends a control signal to the control input of cylinder and driving motor
End, electromagnet put down metal casting；
3) pressure sensor sends a signal to the first solenoid valve of the first storage vat simultaneously, and the first solenoid valve is opened, and first
Passivator in storage vat enters reaction tank, and passivation reaction starts；
4) passivator is entered in the second cavity for connecting with reaction tank by inflow hole, with the raising of passivator liquid level,
Float plate moves up, until contact with the liquid-level switch at the top of the second cavity, liquid-level switch sends control signal to the first solenoid valve,
First solenoid valve is closed, and passivator stops entering reaction tank；
5) with the progress of passivation reaction, the concentration of passivator is begun to decline in reaction tank, until passing lower than the first concentration
The preset value of sensor, at this point, the first concentration sensor sends control signal to second solenoid valve, second solenoid valve is opened, passivation
The recovered pipeline of agent reaches buffer pool, and the outflow port after the filtering of buffer pool, then through buffer pool reaches recovery pond；
6) the second concentration sensor in recovery pond detects the passivator of low concentration, controls the third electricity of the second storage vat
Magnet valve is opened, and the passivator of the high concentration in the second storage vat enters recovery pond, is mixed with the passivator of low concentration, same with this
When, stirring motor is opened, and the mixing of the two is accelerated；
7) the second concentration sensor in recovery pond detects that the passivating agent concentration in recovery pond is restored to can be with metal casting
After part is passivated the concentration of reaction, the 4th solenoid valve of control is opened, and the passivator in recovery pond enters to be reached through reflux line
First storage vat, to be used to subsequent passivation reaction.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. a kind of recycling component for metal casting surface treatment, it is characterised in that:
Recycle component including passivator, passivator recycling component includes buffer pool, the buffer pool by recovery channel with
Reaction tank connection is equipped with second opened/closed for controlling recovery channel in the junction of the recovery channel and reaction tank
Solenoid valve, the signal input part of second solenoid valve are connect with the signal output end of the first concentration sensor, peace in the buffer pool
Equipped with filter screen, outflow port is offered in the bottom of buffer pool, the outflow port is connect with recovery pond；
Agitating device is installed in the recovery pond, the agitating device includes the stirring motor being installed on outside recovery pond,
The output end of the stirring motor and the stirring axis connection being installed on inside recovery pond, are equipped with several stir on the agitating shaft
Fin is mixed, the second concentration sensor and third for detecting passivating agent concentration in recovery pond are also equipped in the recovery pond
Concentration sensor, second concentration sensor are connect with the second storage vat, and third concentration sensor is connect with the 4th solenoid valve；
Second storage vat includes the third cavity for storing high concentration passivator, is equipped in the bottom of the third cavity
Liquid outlet, and liquid outlet is connect by liquid outlet pipe with recovery pond, is equipped in the junction of the liquid outlet pipe and recovery pond
The third solenoid valve opened/closed for controlling liquid outlet pipe, the signal input part of the third solenoid valve and the second concentration pass
The signal output end of sensor connects；
The recovery pond also has the reflux line connecting with the first storage vat, and the 4th electromagnetism is equipped in the reflux line
Valve, the 4th solenoid valve are connect with the signal output end of third concentration sensor；
The passivator recycling component and metal casting blunting component cooperate, and metal casting blunting component includes reaction tank, in institute
It states and is fixedly installed with station slot in reaction tank, the station slot includes the substrate for placing metal casting, in the two sides of substrate
Equipped with the postive stop baffle upwardly extended, the pressure whether being in place for detecting metal casting is equipped in the bottom of the substrate
Sensor and the first concentration sensor for detecting passivating agent concentration；
The reaction tank is connected with the first storage vat, and first storage vat includes the first cavity for storing passivator,
The bottom of first cavity is equipped with liquid outlet, and liquid outlet is connect by liquid outlet pipe with reaction tank, in the liquid outlet pipe
The first solenoid valve opened/closed for controlling liquid outlet pipe is installed with the junction of reaction tank；
It is equipped with handling device in the top of the reaction tank, the handling device includes the bracket being set to above reaction tank,
It is welded with cross slide way on the bracket, guide groove is offered on the inside of cross slide way, is flexibly connected between the guide groove
There is slide plate, the slide plate is connect by connecting rod with the driving motor being installed on bracket, and the slide plate can be in driving motor
It is moved left and right under promotion along guide groove；Cylinder is installed on the slide plate, the cylinder is by push rod and for grabbing metal
The electromagnet of casting connects, the signal output end connection of the signal input part and pressure sensor of the driving motor and cylinder；
The second cavity is equipped in the side wall of the reaction tank, the second cavity is connected to by inflow hole with reaction tank, described the
Limit sieve plate is fixedly installed in two cavitys, the limit sieve plate is located at the top of inflow hole, second above limit sieve plate
The float plate that can be moved up and down along the inner wall of second cavity is installed in cavity, liquid is installed at the top of the float plate
Bit switch, the signal output end of the liquid-level switch are connect with the signal input part of the first solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795819.0A CN106399999B (en) | 2016-08-30 | 2016-08-30 | A kind of recycling component for metal casting surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795819.0A CN106399999B (en) | 2016-08-30 | 2016-08-30 | A kind of recycling component for metal casting surface treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106399999A CN106399999A (en) | 2017-02-15 |
| CN106399999B true CN106399999B (en) | 2019-07-16 |
Family
ID=58001703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610795819.0A Active CN106399999B (en) | 2016-08-30 | 2016-08-30 | A kind of recycling component for metal casting surface treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106399999B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0454361A2 (en) * | 1990-04-24 | 1991-10-30 | Nippon Paint Co., Ltd. | Process for phosphating metal surface to form a zinc phosphate coating |
| CN1712567A (en) * | 2004-06-25 | 2005-12-28 | 长濑产业株式会社 | Regeneration device and method for acid etching liquid |
| CN101312121A (en) * | 2007-05-24 | 2008-11-26 | 住友精密工业株式会社 | Base plate treating device |
| CN101760744A (en) * | 2008-12-24 | 2010-06-30 | 沈阳芯源微电子设备有限公司 | Separating and recycling device of multiple kinds of chemical liquid medicines |
| CN202945324U (en) * | 2012-12-05 | 2013-05-22 | 深圳市兴达线路板有限公司 | PCB (Printed Circuit Board) copper immersion line medicinal liquid addition detecting and temperature-control system |
| CN203904456U (en) * | 2014-03-27 | 2014-10-29 | 福建浔兴拉链科技股份有限公司 | System for recycling solution in zipper oxidation tank |
| CN206298641U (en) * | 2016-08-30 | 2017-07-04 | 嘉善天晟精密铸件有限公司 | A kind of recovery component for metal casting surface treatment |
-
2016
- 2016-08-30 CN CN201610795819.0A patent/CN106399999B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0454361A2 (en) * | 1990-04-24 | 1991-10-30 | Nippon Paint Co., Ltd. | Process for phosphating metal surface to form a zinc phosphate coating |
| CN1712567A (en) * | 2004-06-25 | 2005-12-28 | 长濑产业株式会社 | Regeneration device and method for acid etching liquid |
| CN101312121A (en) * | 2007-05-24 | 2008-11-26 | 住友精密工业株式会社 | Base plate treating device |
| CN101760744A (en) * | 2008-12-24 | 2010-06-30 | 沈阳芯源微电子设备有限公司 | Separating and recycling device of multiple kinds of chemical liquid medicines |
| CN202945324U (en) * | 2012-12-05 | 2013-05-22 | 深圳市兴达线路板有限公司 | PCB (Printed Circuit Board) copper immersion line medicinal liquid addition detecting and temperature-control system |
| CN203904456U (en) * | 2014-03-27 | 2014-10-29 | 福建浔兴拉链科技股份有限公司 | System for recycling solution in zipper oxidation tank |
| CN206298641U (en) * | 2016-08-30 | 2017-07-04 | 嘉善天晟精密铸件有限公司 | A kind of recovery component for metal casting surface treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106399999A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106399984B (en) | A kind of metal casting surface passivation device and method | |
| CN106435561B (en) | A kind of blunting component for metal casting surface treatment | |
| CN207618625U (en) | A kind of piece surface an automated handling line | |
| CN106245010B (en) | A kind of metal casting surface passivation device | |
| CN106399998B (en) | A kind of metal casting surface passivation method | |
| CN102284468B (en) | Kitchen-garbage recycling machine | |
| CN106399999B (en) | A kind of recycling component for metal casting surface treatment | |
| CN206298641U (en) | A kind of recovery component for metal casting surface treatment | |
| CN206033880U (en) | Metal casting surface passivation device | |
| CN208995611U (en) | A kind of acid cycle formula stainless steel tube pickling tube | |
| CN105170541B (en) | A kind of integral type cleaning product line | |
| CN206033881U (en) | A passivation subassembly for metal casting surface treatment | |
| CN109735835A (en) | A kind of metal casting surface passivation method | |
| CN207581872U (en) | The continuous leaching system control unit of sodium roasting material | |
| CN208110395U (en) | A kind of sludge-tank floating ball rod tank level control system | |
| CN209602107U (en) | Immersion system is used in a kind of production of Immesion active carbon | |
| CN209721790U (en) | A kind of medical waste water filter press | |
| CN203408788U (en) | Full-automatic permanent magnet deironing machine | |
| CN207655410U (en) | The efficient immersion oil of metal bar drains device | |
| CN207879627U (en) | A kind of energy-efficient eddy flow well water pump supply equipment | |
| CN201684997U (en) | Liquid storage tank with automatically switching of working liquids | |
| CN207405215U (en) | A kind of gold mud displacement apparatus | |
| CN206881914U (en) | Full automatic permanent iron remover for slurry | |
| CN217505133U (en) | Environment-friendly flaw detection device for drilling/workover operation oil pipe | |
| CN220900455U (en) | Pipetting workstation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 3 Building 8, Huimin Road, Tao Zhuang Town, Zhejiang, Jiaxing 314100, China Patentee after: Jiashan Tiansheng Precision Casting Co., Ltd Address before: 3 Building 8, Huimin Road, Tao Zhuang Town, Zhejiang, Jiaxing 314100, China Patentee before: TS INVESTMENT CASTING Co. |