CN100472111C - Manufacturing method of tap valve body - Google Patents
Manufacturing method of tap valve body Download PDFInfo
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- CN100472111C CN100472111C CNB2006100254287A CN200610025428A CN100472111C CN 100472111 C CN100472111 C CN 100472111C CN B2006100254287 A CNB2006100254287 A CN B2006100254287A CN 200610025428 A CN200610025428 A CN 200610025428A CN 100472111 C CN100472111 C CN 100472111C
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Abstract
The invention provides a method for manufacturing hydro-valve body, comprising the steps of: a. part machining; b. welding; and c. fine machining. And it moulds case, water inlet base, inner water pipe, valve core seat, and water outlet base and weld them together. And it compromises the advantages of hot forging and casting processes, saving large number of materials, reducing manufacturing cost and easy to control.
Description
Technical field
The present invention relates to a kind of manufacture method of tap valve body, belong to the technical field of hardware products manufacture method.
Background technique
The use of water tap at present more and more widely, the valve body of water tap generally has casting and two kinds of technology manufacturings of forge hot to form the stock utilization height of casting, but the sand holes that are easy to generate of poor quality, crackle; The fine quality of forge hot, but stock utilization is low, the cost height.Along with the frequent rise of metallic material price, the utilization ratio that how to improve material is more and more important.
The Chinese patent CN89105267.4 of General valve by name, tube-fitting expansion pressure forming process adopts following technological scheme: comprise press machine last item, swelling pressure material, steel pipe and mould, it is characterized in that the swelling pressure material inserts in the steel pipe, steel pipe is put into the inner chamber of mould, last item with press machine is pressed the swelling pressure material, and valve or the pipe that swelling pressure of steel pipe becomes and dies cavity is identical shaped connect.This technology has solved existing valve, pipe connects is that the employing casting exists the reject rate height, intensity is low, cost is high, the problem of bad adaptability.
This technology is used valve, tube-fitting expansion pressure forming process, is use the tubulose steel, and on relatively large pressure facility, with specialized mould and swelling pressure material, swelling pressure becomes and the valve or the pipe of dies cavity identical appearance connect.By above-mentioned technology make formed valve, pipe connect that reject rate is low, intensity is high, in light weight, and adaptability is strong, can satisfy civilian and general requirement chemical industry equipment, but this scheme has just solved the manufacturing process of valve shell, can not wholely reduce its manufacture cost, the integrated artistic quality is still waiting to improve.
Summary of the invention
The present invention is directed to existing in prior technology the problems referred to above, provide a kind of each parts to process respectively, then the technological scheme that these several parts is combined closely by outside and interior welds technology valve body.The size of valve body is big more, and the advantage of technology of the present invention is just obvious more.Less because of the material that this technology is used, adopt non-toxic material to make, quality of product height and environmental protection, the product average cost has obtained reduction, and the life-span of product, anti-water-leaking property can all improve greatly simultaneously.
Process application of the present invention is on the valve body of drawing and pulling type Kitchen tap the time, and it is more smooth and easy that the flexible pipe of drawing and pulling type kitchen faucet is used, this point be casting technique and thermal forging technology can't accomplish.
And technology of the present invention can accomplish easily casting technique and thermal forging technology the form structure that can't finish, make the moulding of water tap more varied.
Above-mentioned technical purpose of the present invention solves by the following technical programs:
A kind of manufacture method of tap valve body is characterized in that this manufacture method realizes by following step:
The processing of a, parts: valve shell, water inlet base, valve inner water pipe, valve core case, water outlet base are made moulding, and wherein said valve shell and the forge hot of water outlet base one piece form;
B, welding: the parts of above-mentioned making moulding are welded into thick finished product according to the structure of tap valve body; Welding sequence is earlier that of valve inner water pipe is welded together with the water inlet base; Welded together water inlet base and valve shell then; Again that the other end and the valve core case of valve inner water pipe is welded together; At last that valve core case and valve shell is welded together;
C, fine finishing: after above-mentioned thick finished product after integrally welded carried out surface finish, inner smooth, deburring and handle finished product.
Usually, tap valve body comprises valve shell, water inlet base, valve inner water pipe, valve core case, water outlet base.In the manufacture method of above-mentioned tap valve body, earlier valve shell, water inlet base, valve inner water pipe, valve core case, water outlet base are made moulding, again they are welded.Mode by welding after the independent moulding of each parts of tap valve body is connected and fixed the formation one, make that not only the sealing effect of whole valve body is better, its each member manufacturing method is comparatively simple simultaneously, cost owing to good its single-piece of the simple exhaust of mould when parts adopt casting reduces greatly, inner simultaneously sand holes have obtained effective eliminating, and the physical strength of parts is improved; Because the parts outside that water pipe comparatively simply makes casting obtain is very smooth, its corrosion resistance has had significant raising.Each parts make the more not at all easy situation that occurs leaking of cooperation of each parts by welding, though occurred leaking also can in time discharge hidden danger by repair welding.Modular manufacture method concentrates assembling to meet the requirement of modern crafts quality control and control at last, changes the technology prejudice that tap valve body in the past can only forge separately or cast, and has improved the quality of product greatly; The making method of described each parts can be multiple as forge, casting.
In the manufacture method of above-mentioned tap valve body, be to push the making moulding by thermal forging technology or by tubing at the valve shell described in the step a.The preferred thermal forging technology of valve shell is made and is made that its intensity is higher, also can make working life of shell that corrosion resistance significantly improves, and has also removed inner stress trace simultaneously through Overheating Treatment; The concrete making method of valve shell is as follows: at the inner perfusion of copper pipe low melting metal, put into mould then earlier, after being shaped with high-pressure extrusion, melt away inner low melting metal; Described low melting metal such as tin.The whole no bonding crack of valve shell when adopting this programme, once-through, moulding is quick, adopts low melting point and nontoxic metal to help environmental protection, and the protective film that the while low melting metal is stayed the enclosure surface makes that products obtained therefrom anti-corrosion effects of the present invention is good.
Because the connection of water outlet base and valve shell is simpler than connecting between the miscellaneous part, simple with the one Forging Technology, sealing effect is better, has also simplified parts simultaneously.
In the manufacture method of above-mentioned tap valve body, make moulding by thermal forging technology at the water inlet base described in the step a, valve core case and water outlet base.Described water inlet base, valve core case and water outlet base adopt copper material punching press forge hot under high temperature condition to form; In the time of preferred 700 degrees centigrade to 900 degrees centigrade copper material is formed in forge hot.
In the manufacture method of above-mentioned tap valve body, adopt the copper pipe brake forming at the valve inner water pipe described in the step a.
Wherein the concrete step of welding sequence is as follows: earlier the water outlet base is welded on the valve shell; If valve shell adopts thermal forging technology then has removed this step from; With in the valve inner water pipe hot and cold water copper pipe one end of bending forming be welded to into water base reverse side, together put into valve shell then; Valve core case is put into valve shell, again with in the internal duct two of bending forming hot and cold water copper pipe the other ends put into the cold and hot water hole of valve core case respectively, pierce in the valve core case with welding gun the hot and cold water copper pipe is added thermal weld, also welding gun can be stretched into the water outlet base hot and cold water copper pipe is added thermal weld; At last that valve core case and water inlet base and valve shell is welded together.
Therefore, the advantage of thermal forging technology and casting technique has been merged in the present invention, mass deficiency and the big shortcoming of forged material waste of having avoided casting to produce, make the use amount that the tap valve body that obtains has been saved material greatly by technology of the present invention, reduced fabricating cost, its processing quality also is easy to control; The tap valve body mass defect of utilizing the present invention to prepare is less, is difficult for getting rusty.
Description of drawings
Fig. 1 is the structural representation of valve body in the manufacture method of tap valve body of the present invention.
Fig. 2 is the structural representation of valve body embodiment two in the manufacture method of this tap valve body.
Among the figure, 1, shell; 2, water inlet base; 3, water pipe; 4, valve core case; 5, water outlet base; 6, guide pipe.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, technological scheme of the present invention is described in further detail; But the present invention is not limited to these embodiments.
Embodiment 1:
As shown in Figure 1, valve shell 1 profile is a threeway.It is the water outlet base 5 of water receiving tap outlet pipe that one of valve shell 1 right side leads to, a logical valve core case 4 of placing of upside, a logical placement water inlet base 2 in left side.
Its manufacture method is: earlier brass bar is sawn into suitable length, after being heated to about 700 degree, the press tool of putting into valve shell 1 is squeezed into blank shape at a high speed through 160 tons of punch presses, carry out lathe fine finishing then, can put into valve core case 4 and water inlet base 2 sizes to reach; Equally brass is heated to 700 degree and is washed into valve core case 4 blanks, form through machined into; Be washed into into water base 2 blanks with brass at high temperature, process through the lathe feed; Adopt the copper pipe bending to form valve inner water pipe 3.With in the inner water tube 3 hot and cold water copper pipe one end of bending forming be welded to into water base 2 reverse side, together put into valve shell 1 then, again valve core case 4 is put into valve shell 1, with in the valve inner water pipe 3 two of bending forming hot and cold water copper pipe the other ends put into the cold and hot water hole of valve core case 4 respectively, pierce in the valve core case 4 with welding gun the hot and cold water copper pipe is added thermal weld, valve core case 4 and water inlet base 2 is welded together with valve shell 1.The valve body that has welded is carried out withstand voltage and performing leak test, after the test valve body surface is carried out machine tooling, remove surface soldered burr, impurity.
Embodiment 2:
As shown in Figure 2, a kind of manufacture method of tap valve body, valve shell 1 adopts the copper pipe extruding to form: earlier in the inner perfusion of copper pipe tin metal, put into mould then, push with 200 t hydraulic press, behind the extrusion moulding, melt away inner soft alloys such as tin, valve shell 1 and water outlet base 5 integral one-step moldings by the independent casting of husky mould, bend to inner water tube 3 with brass tube with the valve core case 4 of tap valve body, the base 2 of intaking.In the present embodiment, valve body is the drawing and pulling type Kitchen tap, the bending guide pipe 6 of interior useful brass tube.There are four holes in water inlet base 2 fronts, connect cold water inlet respectively, the hot water inlet pipe, and the mixing water outlet pipe, and connect the screw hole that fixed valve body is used.Earlier valve inner water pipe 3 is welded on the valve shell 1 and with its integral body and puts into valve shell 1, the base 2 of will intaking welds together with valve shell 1, the other end with the hot and cold water copper pipe is welded on the valve core case 4 then, at last valve core case 4 is welded on the valve shell 1.The valve body that has welded is carried out withstand voltage and performing leak test, after the test valve body surface is carried out machine tooling, carry out getting finished product after surface finish, the inner smooth deburring processing.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although, do not get rid of the possibility of using other term to used terms such as valve shell, water inlet base among the present invention morely.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (3)
1, a kind of manufacture method of tap valve body is characterized in that, this manufacture method realizes by following step:
The processing of a, parts: valve shell (1), water inlet base (2), valve inner water pipe (3), valve core case (4), water outlet base (5) are made moulding, and wherein said valve shell (1) and water outlet base (5) one piece forge hot form;
B, welding: the parts of above-mentioned making moulding are welded into thick finished product according to the structure of tap valve body; Welding sequence is earlier that of valve inner water pipe (3) is welded together with water inlet base (2); Welded together water inlet base (2) and valve shell (1) then; Again that the other end and the valve core case (4) of valve inner water pipe (3) is welded together; At last that valve core case (4) and valve shell (1) is welded together;
C, fine finishing: after above-mentioned thick finished product after integrally welded carried out surface finish, inner smooth, deburring and handle finished product.
2, the manufacture method of tap valve body according to claim 1 is characterized in that, the water inlet base (2) described in the step a, valve core case (4) and water outlet base (5) are made moulding by thermal forging technology.
3, the manufacture method of tap valve body according to claim 1 is characterized in that, the valve inner water pipe (3) described in the step a adopts the copper pipe brake forming.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100254287A CN100472111C (en) | 2006-04-04 | 2006-04-04 | Manufacturing method of tap valve body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100254287A CN100472111C (en) | 2006-04-04 | 2006-04-04 | Manufacturing method of tap valve body |
Publications (2)
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CN1831408A CN1831408A (en) | 2006-09-13 |
CN100472111C true CN100472111C (en) | 2009-03-25 |
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CNB2006100254287A Expired - Fee Related CN100472111C (en) | 2006-04-04 | 2006-04-04 | Manufacturing method of tap valve body |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101832418A (en) * | 2010-06-04 | 2010-09-15 | 大连高阀泵阀有限公司 | Quick automatic cut-off instrument valve |
CN102853141A (en) * | 2012-10-07 | 2013-01-02 | 安阳市荣诚石油矿山机械有限公司 | Valve body manufacturing method |
CN102886657B (en) * | 2012-11-01 | 2015-06-17 | 浙江苏泊尔卫浴有限公司 | Shower faucet valve body manufacturing method |
CN104501898A (en) * | 2014-12-26 | 2015-04-08 | 伍杰辉 | Hot forging pressing process water meter copper shell and manufacturing method thereof |
CN112045375B (en) * | 2020-09-18 | 2023-01-06 | 项定洪 | Manufacturing process of environment-friendly valve body and product thereof |
CN112846670B (en) * | 2021-01-25 | 2022-05-24 | 湖南理工学院 | Processing technology of valve core shell of water faucet |
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