CN201368237Y - Lead-free aluminum alloy rubber coating valve - Google Patents
Lead-free aluminum alloy rubber coating valve Download PDFInfo
- Publication number
- CN201368237Y CN201368237Y CNU2009201064575U CN200920106457U CN201368237Y CN 201368237 Y CN201368237 Y CN 201368237Y CN U2009201064575 U CNU2009201064575 U CN U2009201064575U CN 200920106457 U CN200920106457 U CN 200920106457U CN 201368237 Y CN201368237 Y CN 201368237Y
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- lead
- metal body
- aluminum alloy
- free aluminum
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Abstract
The utility model relates to a lead-free aluminum alloy rubber coating valve which adopts the environment-friendly lead-free aluminum alloy as a metal body of the valve. The valve comprises a valve metal body and a rubber body; the center of the metal body is provided with a valve core hole; one end of the metal body in the length direction is provided with screw thread; the rubber body is arranged at the other end of the metal body in the length direction through rubber coating; the bottom of the rubber body takes the flared shape; the metal body is lead-free aluminum alloy; the surface of the rubber coating section of the metal body is provided with concave pits; and an adhesive layer is arranged between the metal body and the rubber body. The valve has the advantages that 1. the using of the lead-free aluminum alloy for rubber coating is safe and environment-friendly; 2. the structure is simple and practical, the original production equipment does not need to be changed, and the valve can be realized by only changing the production process; 3. by adopting the lead-free aluminum alloy, the valve is easy for cutting, and the production efficiency is high; 4.the sealing effect is good, the adhesive rate and adhesive strength are both 40% greater than that of the national standard, the rate of finished products is high, and the service life is long.
Description
Technical field
The utility model relates to valve cock, and particularly adopting the environmental-friendly lead-free aluminum alloy is a kind of lead-free aluminum alloy encapsulate valve cock of valve cock metal body.
Background technique
At present, common valve cock metal body generally adopts the basis brass manufacturing, in order to solve a cutting difficult problem, is mixed with lead element in the basis brass, and lead is forbidden by environmental protection.The content of lead in the basis brass Chemical composition, as H62 lead content 0.08%, H59 lead content 0.5% (seeing GB/T5231-2001).Since the eighties in 20th century; Environmental Defense and affiliate thereof have progressively eliminated the lead in the gasoline; reduced the lead in the potable water, reduced plumbous industrial air pollution, forbidden or be limited in lead content in the consumer goods that comprise residenter house coating.The same with Environmental Defense, European Union is also in the lead pollution of making great efforts to significantly reduce in the environment, and this point has been highlighted in nearest ROHS and ELV instruction.Lead content USS United States Standard limiting value is 90mg/kg in the metal, and the European norm limiting value is 90mg/kg.Therefore China's lead content product that exceeds standard is sold to the USA and Europe and caused very big influence.In order to eliminate lead content, the material that does not have rubber base valve at present is generally aluminum alloy; And aluminum alloy is used for the encapsulate valve cock, because bonding not firm, gas leakage, yield rate is low, lack working life problem often appear in aluminum alloy and rubber adhesion; Therefore be head it off, the Chinese patent of notification number: CN2584432Y discloses a kind of " rubber base valve ", this valve cock is increasing flange plate and through hole is being set on flange plate on the metal body, the through hole of flange plate is full of the join strength that rubber has increased rubber and metal body when making the vulcanization of rubber, but this kind structure does not still solve the problem and the complex structure of bonding not firm gas leakage, therefore how to solve aluminum alloy with rubber adhesion is a major issue that needs to be resolved hurrily in the valve cock industry, resolving this technology also is that one of metal encapsulate valve cock is contributed greatly.
Summary of the invention
The purpose of this utility model is for solving a kind of lead-free aluminum alloy encapsulate valve cock technological scheme that aluminum alloy and rubber adhesion problem propose.
To achieve these goals, technical solutions of the utility model are achieved in that a kind of lead-free aluminum alloy encapsulate valve cock, comprise valve cock metal body and rubber body, be provided with the valve inside hole at the metal body center, described metal body length direction one end is provided with screw thread, rubber body is arranged on the metal body length direction the other end by encapsulate, the bottom of rubber body is bell mouth shape, described metal body is a lead-free aluminum alloy, be distributed with pit at metal body encapsulate section surface, between metal body and rubber body, be provided with sticker layer.
Described pit is that out-of-shape pit or radius are 0.3 millimeter to 0.6 millimeter arc pit.
Described sticker layer is Kai Muluoke 205 sticker layers or Kai Muluoke 6108 sticker layers.
Described sticker layer thickness is 20 microns to 35 microns.
The beneficial effects of the utility model are:
1. use lead-free aluminum alloy encapsulate, safety, environmental protection;
2. simple in structure, practical, need not to change original production equipment, only need to change production technology and just can realize;
3. use lead-free aluminum alloy to cut the manufacturing efficiency height easily;
4. good sealing effect, binding efficiency and adhesive strength be all greater than NBS more than 40%, yield rate height, long service life.
Below in conjunction with drawings and Examples the utility model is done a detailed description.
Description of drawings
Fig. 1 is the utility model encapsulate valve cock half section schematic representation;
Fig. 2 is distributed with the partial perspective schematic representation of pit for metal body one end surfaces;
Fig. 3 is two-layer encapsulate valve cock partial structurtes schematic representation for sticker layer, the A portion enlarged view of Fig. 1;
The encapsulate valve cock structural representation that Fig. 4 protrudes disk for metal body has;
Fig. 5 has the encapsulate valve cock structural representation of groove for metal body.
Embodiment
Embodiment 1
A kind of lead-free aluminum alloy encapsulate valve cock embodiment 1, referring to Fig. 1, Fig. 2 and Fig. 3, a kind of lead-free aluminum alloy encapsulate valve cock, comprise valve cock metal body 1 and rubber body 2, be provided with valve inside hole 1-1 at the metal body center, described metal body length direction one end is provided with screw thread 1-2, rubber body is arranged on the metal body length direction the other end by encapsulate, the bottom of rubber body is bell mouth shape 2-1, described metal body is a lead-free aluminum alloy, in metal body encapsulate segment section surface distributed pit 1-3 is arranged, between metal body and rubber body, be provided with sticker layer 3.
Described pit is by the metal body surface sandblast is obtained, and sandblast is 0.6 millimeter to 1.2 millimeters with the particles of silicon carbide particle diameter; Forming the out-of-shape pit or form radius at metal body surface at metal body surface as shown in Figure 2 is 0.3 millimeter to 0.6 millimeter arc pit, and the roughness that its pit has increased metal body surface makes rubber body easily attached to metal body surface.
In order to increase the bonding strength of rubber body and metal body, spray tackiness agent on the pit surface of metal body, described sticker layer thickness is 20 microns to 35 microns, and then carries out encapsulate in the sticker layer outside and realize closely bonding of rubber body and metal body.
Described tackiness agent is Kai Muluoke 205 tackiness agents or Kai Muluoke 6108 tackiness agents.
In order further to increase the bonding strength of rubber body and metal body, described sticker layer is divided into two-layer spraying, is close to metal body and adopts Kai Muluoke 205 tackiness agents for first layer 3-1, and its thickness is 5 to 10 microns; Spraying second layer 3-2 Kai Muluoke 6108 tackiness agents after the oven dry of first layer tackiness agent again, its thickness is 15 to 25 microns.
It is 5 microns or 10 microns that present embodiment tackiness agent first layer adopts Kai Muluoke 205 adhesive thickness, and the tackiness agent second layer is that Kai Muluoke 6108 adhesive thickness are 15 microns or 25 microns.
Embodiment 2
A kind of lead-free aluminum alloy encapsulate valve cock embodiment 2, referring to embodiment 1 and Fig. 4 and Fig. 5, when described metal body encapsulate less than metal body length direction three/for the moment, for further Reinforced Rubber body and metal body degree of being connected firmly, be provided with protrusion disk 1-4 or groove 1-5 in described metal body encapsulate section, adopt pit that this kind respective outer side edges metal body encapsulate section surface distributes and the sticker layer that sprays up, rubber body and metal body bonding firm, air tight, yield rate is high.
Following table is that the utility model is at 8.5kgf/cm
2Steam, the peel test results of 20 fens laggard row of clock aging:
TR13BU is a structure valve cock shown in Figure 1 in the table, and TR4BU is a structure valve cock shown in Figure 4, and TR1/32BU is a structure valve cock shown in Figure 5.
Table:
Claims (10)
1. lead-free aluminum alloy encapsulate valve cock, comprise valve cock metal body and rubber body, be provided with the valve inside hole at the metal body center, described metal body length direction one end is provided with screw thread, and rubber body is arranged on the metal body length direction the other end by encapsulate, and the bottom of rubber body is bell mouth shape, it is characterized in that, described metal body is a lead-free aluminum alloy, is distributed with pit at metal body encapsulate section surface, is provided with sticker layer between metal body and rubber body.
2. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 1 is characterized in that, described pit is that out-of-shape pit or radius are 0.3 millimeter to 0.6 millimeter arc pit.
3. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 1 is characterized in that, described sticker layer is Kai Muluoke 205 sticker layers or Kai Muluoke 6108 sticker layers.
4. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 1 is characterized in that described sticker layer thickness is 20 microns to 35 microns.
5. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 1 is characterized in that described sticker layer is divided into two-layer, and being close to metal body is that first layer adopts Kai Muluoke 205 tackiness agents, and its thickness is 5 to 10 microns; The second layer is Kai Muluoke 6108 tackiness agents, and its thickness is 15 to 25 microns.
6. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 5 is characterized in that described first layer adhesive thickness is 5 microns, and described second layer adhesive thickness is 15 microns.
7. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 5 is characterized in that described first layer adhesive thickness is 10 microns, and described second layer adhesive thickness is 25 microns.
8. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 5 is characterized in that described first layer adhesive thickness is 5 microns, and described second layer adhesive thickness is 25 microns.
9. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 5 is characterized in that described first layer adhesive thickness is 10 microns, and described second layer adhesive thickness is 15 microns.
10. a kind of lead-free aluminum alloy encapsulate valve cock according to claim 1 is characterized in that, described metal body encapsulate section is provided with protrudes disk or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201064575U CN201368237Y (en) | 2009-03-25 | 2009-03-25 | Lead-free aluminum alloy rubber coating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201064575U CN201368237Y (en) | 2009-03-25 | 2009-03-25 | Lead-free aluminum alloy rubber coating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368237Y true CN201368237Y (en) | 2009-12-23 |
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ID=41487130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201064575U Expired - Fee Related CN201368237Y (en) | 2009-03-25 | 2009-03-25 | Lead-free aluminum alloy rubber coating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368237Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042130A (en) * | 2015-06-15 | 2015-11-11 | 宁波市鄞州金钢汽配厂 | Light, environment-friendly and bending-resistant novel inflating valve |
-
2009
- 2009-03-25 CN CNU2009201064575U patent/CN201368237Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042130A (en) * | 2015-06-15 | 2015-11-11 | 宁波市鄞州金钢汽配厂 | Light, environment-friendly and bending-resistant novel inflating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |