CN101596766A - A kind of preparation method of ball valve made of plastic and mould thereof - Google Patents
A kind of preparation method of ball valve made of plastic and mould thereof Download PDFInfo
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- CN101596766A CN101596766A CNA2009100997014A CN200910099701A CN101596766A CN 101596766 A CN101596766 A CN 101596766A CN A2009100997014 A CNA2009100997014 A CN A2009100997014A CN 200910099701 A CN200910099701 A CN 200910099701A CN 101596766 A CN101596766 A CN 101596766A
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Abstract
The invention provides a kind of preparation method and mould thereof of ball valve made of plastic, belong to valve technology field.It has solved complex process, the seriously polluted and production cost high-technology problem that exists in the existing ball valve manufacturing.A kind of preparation method of ball valve made of plastic, this preparation method may further comprise the steps: the A. part is made; B. assembled valve core assembly; C. adorn mould, matched moulds; D. injection moulding, move back mould; E. assemble finished product.A kind of mould, comprise upper die body and lower mold body, has the backstay that is used for the normal valve core assembly on the lower mold body, has recessed guiding straight trough on the lower mold body, guiding straight trough place also is provided with the slide block that two energy slide along the guiding straight trough, the slide block sidepiece have recessed die cavity and when two slide blocks contact relative two die cavitys form injection molding cavities and above-mentioned backstay is positioned at injection molding cavity, also be provided with the clamp mechanism that when two slide blocks contact, can be locked between upper die body and the lower mold body.This ball valve made of plastic cost of manufacture is low, easy to use, finished product rate height.
Description
Technical field
The invention belongs to valve field, relate to the preparation method of a kind of ball valve made of plastic, particularly ball valve made of plastic and make the employed mould of ball valve made of plastic.
Background technology
Ball valve is a kind of important assembly in the pipeline engineering.But present ball valve is to adopt copper or stainless steel material to make mostly, has shortcomings such as manufacturing process complexity, seriously polluted, production cost height.
For economical with materials and reducing production costs, people have proposed a lot of technical schemes, and for example, Chinese patent literature discloses the one-time formed ball valve made of plastic of a kind of valve body [China Patent No.: ZL98216763.6; Authorize publication number: CN2347000Y], comprise one-time formed valve body and place the interior valve ball that has valve rod of valve body, be provided with clad in ball surface, the valve ball chamber liner of this clad formation valve body reaches the convex hoop shape body corresponding to valve body liquid inlet and outlet hole direction.Self does not have screw connection structure the valve body of this structure, as connecting by heat seal, can't dismantle after the connection and utilize; As by being threaded, the screw thread of plastics quality problems such as insecure, sealing difference will occur connecting through after once connecting when connecting for the second time.
Existing other ball valve made of plastic also all exists similar problem.
Summary of the invention
First purpose of the present invention is at existing in prior technology the problems referred to above, and the preparation method of a kind of cost of manufacture ball valve made of plastic low, easy to make is provided.
Second purpose of the present invention provides a kind of by employed mould in the above-mentioned preparation method.
First purpose of the present invention can realize by following technical proposal: a kind of preparation method of ball valve made of plastic is characterized in that this preparation method may further comprise the steps:
A, part are made: adopt general processing method to make the ball core of metal material, valve rod, handle and two tubular Connection Blocks, adopt general plastics molding process to make the ball seat of plastic material, ball seat inside is cavity;
B, assembled valve core assembly: the ball core of above-mentioned making moulding is positioned in the ball seat, is connected valve rod on the ball seat and makes the inner of valve rod be positioned at ball seat and be connected with the ball core, ball seat is stretched out in the outer end of valve rod, obtains core assembly;
C, dress mould, matched moulds: Connection Block is placed the two ends of core assembly respectively, and the through hole on the Connection Block is communicated with ball seat inside; Mould is made up of upper die body and lower mold body, has backstay on lower mold body, and above-mentioned Connection Block, core assembly and another one Connection Block from top to bottom are enclosed within on the backstay successively, then upper die body and lower mold body is bonded together;
D, injection moulding, move back mould: adopt injection machine under the injection pressure of 40-60bar the temperature of fusion being injected between upper die bodies and the lower mold body at 200 ℃ of-270 ℃ of liquid plastics; Treat 10-40 second, upper die body is separated with lower mold body, obtain this ball valve made of plastic semi-finished product;
E, assembling finished product: handle is connected in the half-finished valve rod of ball valve made of plastic outer end, obtains ball valve made of plastic.
Adopt general machine-tooled method to produce the ball core, valve rod of metal material and two and be Connection Block cylindraceous.The ball core is spherical shape, and has the limbers of running through on the ball core.
Adopt general plastics molding process to produce the ball seat of plastic material, ball seat is inner to be that cavity and ball seat inside are complementary with the ball core.
Then the ball core is positioned in the ball seat, valve rod is installed on the ball seat, make the inner of valve rod be positioned at ball seat and valve rod is inner is connected with the ball core.Ball seat is stretched out in the outer end of valve rod, is assembled into core assembly.
Two Connection Blocks and core assembly are enclosed within on the backstay of lower mold body, and both sides and the through hole on the Connection Block that two Connection Blocks lay respectively at core assembly communicate with ball in-core chamber.Then upper die body is connected with lower mold body, makes both be bonded together.
Adopt injection machine that the liquid plastic of fusion is injected between upper die body and the lower mold body.After waiting for a period of time, upper die body is separated with lower mold body, obtain the semi-finished product of ball valve made of plastic after workpiece is taken out.
At last, handle is connected the half-finished valve rod of ball valve made of plastic outer end, obtains the ball valve made of plastic finished product.Certainly, can also adopt polishing that burr, the burr in the ball valve made of plastic outside are dispeled according to actual needs.
In the preparation method of above-mentioned ball valve made of plastic, process screw thread in the Connection Block inboard in the described steps A.
Screw thread by the Connection Block inboard can easily make this ball valve made of plastic be connected with other pipe fitting etc.
In the preparation method of above-mentioned ball valve made of plastic, adopt general plastic injection moulding process also to make sealing ring that is complementary with the bulb outside and the gland that is complementary with the ball seat end in the described steps A; Among the described step B, sealing ring is loaded on the both sides of bulb, and above-mentioned gland is connected in the ball seat port, makes two both sides that are positioned at bulb that sealing ring is firm.
Because sealing ring and ball core outer shape are complementary, sealing ring is positioned in the valve seat by gland again simultaneously.So just make to stablize between ball core and the sealing ring to contact, increase the sealing of contact position.
In the preparation method of above-mentioned ball valve made of plastic, between valve rod and ball seat, be provided with sealing ring among the described step B, sealing ring is enclosed within on the above-mentioned valve rod.
Can increase sealing between valve rod and the ball seat by sealing ring.
Second purpose of the present invention can realize by following technical proposal: a kind of mould, comprise upper die body and lower mold body, has the location structure that both are located between described upper die body and the lower mold body, has the backstay that is used for the normal valve core assembly on the described lower mold body, it is characterized in that, has recessed guiding straight trough on the described lower mold body, described guiding straight trough place also is provided with the slide block that two energy slide along the guiding straight trough, described slide block sidepiece have recessed die cavity and when two slide blocks contact relative two die cavitys form injection molding cavities and above-mentioned backstay is positioned at injection molding cavity, also be provided with the clamp mechanism that when two slide blocks contact, can be locked between described upper die body and the lower mold body.
When using this Mold Making ball valve made of plastic, at first core assembly is enclosed within on the backstay.Two slide blocks are slided along the guiding straight trough, and two slide blocks after the slip contact, and the die cavity between two slide blocks forms injection molding cavity.Above-mentioned core assembly is positioned at injection molding cavity, and has the space that enters for injected plastics material between core assembly and the injection molding cavity.
After two slide blocks contact, make two slide blocks remain contact by clamp mechanism.Obviously, after said process finishes, just can carry out injection molding operation.
In above-mentioned mould, described clamp mechanism comprises two Angle Pins and is located at through hole on the slide block, and two Angle Pins are connected on the upper die body and these two Angle Pins are splayed and tilt to the upper die body both sides, and described Angle Pin is through at the through hole.
When Angle Pin inserted in the through hole of slide block, along with upper die body is drawn close to lower mold body, extruding two slide blocks slided to the lower mold body middle part simultaneously under the effect of Angle Pin.In case when upper die body and lower mold body contacted, two slide blocks had also contacted together under the effect of Angle Pin.
Certainly, upper die body not with situation that lower mold body is separated under, two slide blocks remain and contact.
In above-mentioned mould, the guiding straight trough of described lower mold body bottom has recessed displacement slot corresponding to the through hole, and through hole is stretched out in above-mentioned Angle Pin outer end can be positioned at the displacement slot place.
As can be seen, Angle Pin can stretch out the through hole of slide block in upper die body and the lower mold body engaging process, makes Angle Pin not stopped by lower mold body under the effect of displacement slot.
In above-mentioned mould, described slide block inside is cavity, and is provided with the cooling tube that communicates with its inner chamber on slide block.In injection moulding process, can cause slide block place temperature than higher, cooling medium by in the cooling tube input slide block, just can be effectively reduced the slide block temperature.
In above-mentioned mould, described slide block sidepiece has two adjacent die cavitys.Obviously, after two slide blocks contact, just form two injection molding cavities.
In above-mentioned mould, described slide block sidepiece has the guiding chimb of protrusion, the guide recess that described guiding straight trough side-walls is recessed, guiding chimb and guide recess is complementary and the chimb that leads is positioned at the guide recess place.
Under the effect of guiding chimb and guide recess, slide block can only be done translational motion along the guiding straight trough.
In above-mentioned mould, described location structure is the corresponding positioning guide column of some positioning recess and upper die body end and positioning recess position of lower mold body end.
After positioning recess and positioning guide column are bonded together, just can obtain the location between upper die body and the lower mold body.
In above-mentioned mould, described backstay is through on the above-mentioned lower mold body, and the upper end of backstay is positioned at lower mold body top, and the backstay lower end is positioned at the lower mold body bottom and is fixed with top board in the backstay lower end, is provided with spring between described top board and the lower mold body.Apply external force and push top board, just can make backstay along with together mobile, and the ball valve made of plastic that will make is deviate from.In case after workpiece is deviate from, stop to apply external force, backstay homing under the elastic force effect of spring.
Compared with prior art, this ball valve made of plastic is because valve rod, ball core and Connection Block are made by metal material, and other part all is to be made by plastic material, and therefore, the production method of this ball valve made of plastic not only cost is lower, and easy to implement.
Simultaneously, the slide block of employed mould by two contacts forms injection molding cavity in this ball valve made of plastic manufacturing process, and two slide blocks can contact and locate automatically, and therefore, it is easy to use, the finished product rate is than higher.
Description of drawings
Fig. 1 is the perspective view of this mould.
Fig. 2 is the sectional structure schematic diagram of this mould.
Fig. 3 is the perspective view at lower mold body place in this mould.
Fig. 4 is the sectional structure schematic diagram at lower mold body place in this mould.
Among the figure, 1, upper die body; 1a, positioning guide column; 2, lower mold body; 2a, positioning recess; 2b, guiding straight trough; 2c, displacement slot; 2d, guide recess; 2e, injection hole; 3, backstay; 4, slide block; 4a, die cavity; 4b, through hole; 4c, cooling tube; 4d, guiding chimb; 5, Angle Pin; 6, top board; 7, spring.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is done the description in a nearly step, but the present invention be not limited to these embodiment.
Embodiment one
As shown in Figure 1, the mould of this ball valve made of plastic is made up of upper die body 1 and lower mold body 2.
Have the location structure that both are located between upper die body 1 and the lower mold body 2, in the present embodiment, location structure is some positioning recess 2a and upper die body 1 end and the corresponding positioning guide column 1a in positioning recess 2a position of lower mold body 2 ends.Certainly, positioning recess 2a is arranged on the upper die body 1, it also is feasible on the lower mold body 2 that positioning guide column 1a is arranged at.
Also have backstay 3 on lower mold body 2, backstay 3 can position core assembly.
Also have recessed guiding straight trough 2b on lower mold body 2, be provided with two slide blocks 4 at guiding straight trough 2b place, slide block 4 can slide along guiding straight trough 2b.Slide block 4 sidepieces have recessed die cavity 4a, and in the present embodiment, the die cavity 4a position that all has on each slide block 4 on two recessed die cavity 4a and two slide blocks 4 is corresponding one by one.When two slide blocks 4 contacted, the die cavity 4a of two position correspondences formed injection molding cavity, and above-mentioned backstay 3 is positioned at injection molding cavity.
As depicted in figs. 1 and 2, between upper die body 1 and lower mold body 2, also be provided with clamp mechanism, under the effect of clamp mechanism, can make two slide blocks that are in contact with one another 4 remain contact condition.
Clamp mechanism comprises the displacement slot 2c of two Angle Pins 5, the through hole 4b on the slide block 4 and the guiding straight trough 2b bottom that are connected on the upper die body 1.Two Angle Pins 5 are splayed and are connected on the upper die body 1, and Angle Pin 5 tilts to the both sides of upper die body 1.Angle Pin 5 is through at the through hole 4b place of slide block 4, and when upper die body 1 and lower mold body 2 were bonded together, Angle Pin 5 passed through hole 4b and is positioned at displacement slot 2c place, and makes two slide blocks 4 contact all the time under the effect of Angle Pin 5.In this enforcement, all has the cooling tube 4c that communicates with its die cavity 4a on two slide blocks 4.
Also be provided with the injection hole 2e that runs through on upper die body 1, after upper die body 1 and lower mold body 2 combined, the injection molding cavity of formation communicated between injection hole 2e and two slide blocks 4.
As shown in Figure 3, for slide block 4 is moved along guiding straight trough 2b smoothly, the guiding chimb 4d that has protrusion at slide block 4 sidepieces, guide recess 2d arranged in that guiding straight trough 2b side-walls is recessed, guiding chimb 4d and guide recess 2d is complementary and the chimb 4d that leads is embedded in guide recess 2d place.
As shown in Figure 4, in order to make stable the deviating from of making of ball valve made of plastic, above-mentioned backstay 3 is through on the above-mentioned lower mold body 2, the upper end of backstay 3 is positioned at lower mold body 2 tops, backstay 3 lower ends are positioned at lower mold body 2 bottoms and are fixed with top board 6 in backstay 3 lower ends, are provided with spring 7 between described top board 6 and the lower mold body 2.
When needing the demoulding, push top board 6, move past on the top board 6 in the journey and to drive backstay 3 and together move, thereby make the ball valve made of plastic that is enclosed within on the backstay 3 deviate from easily.In case after stopping to apply external force, backstay 3 is along with top board 6 returns back to its initial position under the elastic force effect of spring 7.
The preparation method of this ball valve made of plastic includes following steps:
A, part are made: adopt machine-tooled method to produce ball core, valve rod, handle and two tubular Connection Blocks of metal material, simultaneously, process screw thread in the Connection Block inboard in this machining process.
Adopt injection moulding or plastic uptake technology to produce ball seat, gland and two sealing rings of plastic material, ball seat inside is cavity, and sealing ring end and ball core outer shape are complementary, and gland and ball seat port are complementary.
B, assembled valve core assembly: sealing ring, ball core are loaded in the ball seat, and two sealing rings lay respectively at the both sides of ball core, and gland is connected in the port of ball seat, by gland sealing ring and ball core are positioned in the ball seat.
Then, valve rod the inner is through in the ball seat, valve rod the inner is connected with the ball core, ball seat is stretched out in the outer end of valve rod, obtains core assembly.In the present embodiment, be provided with sealing ring between valve rod and ball seat, sealing ring is enclosed within on the valve rod.
C, dress mould, matched moulds: Connection Block and core assembly are enclosed within on the backstay 3 of lower mold body 2, make Connection Block be positioned at the both sides of core assembly, then upper die body 1 and lower mold body 2 are bonded together.
D, injection moulding, move back mould: adopt injection machine under the injection pressure of 50bar with fusion and temperature inject in the above-mentioned injection molding cavity at 230 ℃ liquid plastic cooling tube by slide block.After waiting for for 10 seconds, upper die body 1 is separated with lower mold body 2, obtain the semi-finished product of this ball valve made of plastic.
E: assembling finished product: handle is connected in the half-finished valve rod of ball valve made of plastic outer end, obtains the ball valve made of plastic finished product.
Embodiment two
Present embodiment is identical with the mould that is adopted among the embodiment one, but in step D injection machine under the injection pressure of 55bar with fusion and temperature inject above-mentioned injection molding cavity at 220 ℃ liquid plastic by the cooling tube of slide block.And, after injection moulding, upper die body 1 separated with lower mold body 2 in 12 seconds.
Embodiment three
Present embodiment is identical with the mould that is adopted among the embodiment one, but in step D injection machine under the injection pressure of 60bar with fusion and temperature inject above-mentioned injection molding cavity at 240 ℃ liquid plastic by the cooling tube of slide block.And, after injection moulding, upper die body 1 separated with lower mold body 2 in 25 seconds.
Claims (10)
1, a kind of preparation method of ball valve made of plastic is characterized in that, this preparation method may further comprise the steps:
A, part are made: adopt general processing method to make the ball core of metal material, valve rod, handle and two tubular Connection Blocks, adopt general plastics molding process to make the ball seat of plastic material, ball seat inside is cavity;
B, assembled valve core assembly: the ball core of above-mentioned making moulding is positioned in the ball seat, is connected valve rod on the ball seat and makes the inner of valve rod be positioned at ball seat and be connected with the ball core, ball seat is stretched out in the outer end of valve rod, obtains core assembly;
C, dress mould, matched moulds: Connection Block is placed the two ends of core assembly respectively, and the through hole (4b) on the Connection Block is communicated with ball seat inside; Mould is made up of upper die body (1) and lower mold body (2), on lower mold body (2), has backstay (3), above-mentioned Connection Block, core assembly and another one Connection Block from top to bottom are enclosed within on the backstay (3) successively, then upper die body (1) and lower mold body (2) are bonded together;
D, injection moulding, move back mould: adopt injection machine under the injection pressure of 40-60bar the temperature of fusion being injected between upper die bodies (1) and the lower mold body (2) at 200 ℃ of-270 ℃ of liquid plastics; Treat 10-40 second, upper die body (1) is separated with lower mold body (2), obtain this ball valve made of plastic semi-finished product;
E, assembling finished product: handle is connected in the half-finished valve rod of ball valve made of plastic outer end, obtains ball valve made of plastic.
2, the preparation method of a kind of ball valve made of plastic according to claim 1 is characterized in that, processes screw thread in the Connection Block inboard in the described steps A.
3, the preparation method of a kind of ball valve made of plastic according to claim 1 and 2 is characterized in that, adopts general plastic injection moulding process also to make sealing ring that is complementary with the bulb outside and the gland that is complementary with the ball seat end in the described steps A; Among the described step B, sealing ring is loaded on the both sides of bulb, and above-mentioned gland is connected in the ball seat port, makes two both sides that are positioned at bulb that sealing ring is firm.
4, the preparation method of a kind of ball valve made of plastic according to claim 3 is characterized in that, is provided with sealing ring among the described step B between valve rod and ball seat, and sealing ring is enclosed within on the above-mentioned valve rod.
5, a kind of mould, comprise upper die body (1) and lower mold body (2), has the location structure that both are located between described upper die body (1) and the lower mold body (2), has the backstay (3) that is used for the normal valve core assembly on the described lower mold body (2), it is characterized in that, has recessed guiding straight trough (2b) on the described lower mold body (2), described guiding straight trough (2b) locates also to be provided with the slide block (4) that two energy slide along guiding straight trough (2b), described slide block (4) sidepiece have recessed die cavity (4a) and when two slide blocks (4) contact relative two die cavitys (4a) form injection molding cavity and above-mentioned backstay (3) is positioned at injection molding cavity, also be provided with the clamp mechanism that can be locked when contacting between described upper die body (1) and the lower mold body (2) when two slide blocks (4).
6, a kind of mould according to claim 5, it is characterized in that, described clamp mechanism comprises two Angle Pins (5) and is located at through hole (4b) on the slide block (4), two Angle Pins (5) are connected on the upper die body (1) and these two Angle Pins (5) are splayed to the inclination of upper die body (1) both sides, and described Angle Pin (5) is through at through hole (4b) and locates.
7, a kind of mould according to claim 6, it is characterized in that, recessed displacement slot (2c) is located to have corresponding to through hole (4b) in the guiding straight trough (2b) of described lower mold body (2) bottom, and above-mentioned Angle Pin (5) outer end is stretched out through hole (4b) and can be positioned at displacement slot (2c) and locate.
8, according to claim 5 or 6 or 7 described a kind of moulds, it is characterized in that, described slide block (4) inside is cavity, and is provided with the cooling tube (4c) that communicates with its inner chamber on slide block (4), and described slide block (4) sidepiece has two adjacent die cavitys (4a).
9, a kind of mould according to claim 8, it is characterized in that, described slide block (4) sidepiece has the guiding chimb (4d) of protrusion, the guide recess (2d) that described guiding straight trough (2b) side-walls is recessed, guiding chimb (4d) is complementary with guide recess (2d) and the chimb that leads (4d) is positioned at guide recess (2d) and locates, and described location structure is some positioning recess (2a) and upper die body (1) end and the corresponding positioning guide column in positioning recess (2a) position (1a) of lower mold body (2) end.
10, according to claim 5 or 6 or 7 described a kind of moulds, it is characterized in that, described backstay (3) is through on the above-mentioned lower mold body (2), the upper end of backstay (3) is positioned at lower mold body (2) top, backstay (3) lower end is positioned at lower mold body (2) bottom and is fixed with top board (6) in backstay (3) lower end, is provided with spring (7) between described top board (6) and the lower mold body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910099701 CN101596766B (en) | 2009-06-09 | 2009-06-09 | Manufacturing method for plastic ball valve and die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910099701 CN101596766B (en) | 2009-06-09 | 2009-06-09 | Manufacturing method for plastic ball valve and die thereof |
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| Publication Number | Publication Date |
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| CN101596766A true CN101596766A (en) | 2009-12-09 |
| CN101596766B CN101596766B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910099701 Expired - Fee Related CN101596766B (en) | 2009-06-09 | 2009-06-09 | Manufacturing method for plastic ball valve and die thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972836A (en) * | 2010-11-18 | 2011-02-16 | 吴江市森泰机械制造有限公司 | Casting die easy to strip |
| CN102145542A (en) * | 2010-06-01 | 2011-08-10 | 广东联塑科技实业有限公司 | Method for preparing poly ethylene (PE) gas ball valve |
| CN102416683A (en) * | 2010-09-28 | 2012-04-18 | 张爱平 | Production method of MC (monomer casting) nylon valve |
| CN102794879A (en) * | 2012-09-11 | 2012-11-28 | 晟扬精密模具（昆山）有限公司 | Novel mold structure |
| CN102990862A (en) * | 2012-10-29 | 2013-03-27 | 苏州市吴中区木渎华利模具加工店 | Plastic mold for molding baffle of water-drop-shaped electric heater |
| CN103144243A (en) * | 2011-12-07 | 2013-06-12 | 株式会社鹭宫制作所 | An embedding formation method enabling threaded parts to integrate through embedding formation |
| CN103407071A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Screw injection mold |
| CN103407060A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Novel line injection mold |
| CN103407073A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Improved inner slide injection mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510684Y (en) * | 2001-08-23 | 2002-09-11 | 齐龙 | Improved ball valve |
| CN201432389Y (en) * | 2009-06-09 | 2010-03-31 | 蔡金福 | Plastic ball valve mold |
-
2009
- 2009-06-09 CN CN 200910099701 patent/CN101596766B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510684Y (en) * | 2001-08-23 | 2002-09-11 | 齐龙 | Improved ball valve |
| CN201432389Y (en) * | 2009-06-09 | 2010-03-31 | 蔡金福 | Plastic ball valve mold |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145542A (en) * | 2010-06-01 | 2011-08-10 | 广东联塑科技实业有限公司 | Method for preparing poly ethylene (PE) gas ball valve |
| CN102416683A (en) * | 2010-09-28 | 2012-04-18 | 张爱平 | Production method of MC (monomer casting) nylon valve |
| CN102416683B (en) * | 2010-09-28 | 2014-08-27 | 张爱平 | Production method of MC (monomer casting) nylon valve |
| CN101972836A (en) * | 2010-11-18 | 2011-02-16 | 吴江市森泰机械制造有限公司 | Casting die easy to strip |
| CN103144243A (en) * | 2011-12-07 | 2013-06-12 | 株式会社鹭宫制作所 | An embedding formation method enabling threaded parts to integrate through embedding formation |
| CN103144243B (en) * | 2011-12-07 | 2015-09-23 | 株式会社鹭宫制作所 | By the insert molding method that insert molding makes screwed part become to be integrated |
| CN102794879A (en) * | 2012-09-11 | 2012-11-28 | 晟扬精密模具（昆山）有限公司 | Novel mold structure |
| CN102990862A (en) * | 2012-10-29 | 2013-03-27 | 苏州市吴中区木渎华利模具加工店 | Plastic mold for molding baffle of water-drop-shaped electric heater |
| CN103407071A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Screw injection mold |
| CN103407060A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Novel line injection mold |
| CN103407073A (en) * | 2013-07-14 | 2013-11-27 | 太仓市上阳机械有限公司 | Improved inner slide injection mold |
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| CN101596766B (en) | 2013-06-19 |
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