CN1046107A - Universal valve, tube-fitting expansion pressure forming process - Google Patents
Universal valve, tube-fitting expansion pressure forming process Download PDFInfo
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- CN1046107A CN1046107A CN 89105267 CN89105267A CN1046107A CN 1046107 A CN1046107 A CN 1046107A CN 89105267 CN89105267 CN 89105267 CN 89105267 A CN89105267 A CN 89105267A CN 1046107 A CN1046107 A CN 1046107A
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Abstract
The present invention relates to the moulding process that valve, pipe connect, it is to adopt casting that the valve of prior art, pipe connect, the percent defective height, intensity is low, cost is high, bad adaptability, valve of the present invention, tube-fitting expansion pressure forming process, it is characterized in that using the tubulose steel, on relatively large press device, with particular manufacturing craft and swelling pressure material, swelling pressure becomes valve or the pipe with the dies cavity identical appearance to connect.Its formed valve, pipe connect that percent defective is low, intensity is high, in light weight, and adaptability is strong, can satisfy civilian and general requirement chemical industry equipment.
Description
The invention belongs to metal forming technology, relate generally to the moulding manufacture method that valve, pipe connect.
At present, general water valve, air valve and pipe that China produces connect, and are used for pressure 25Kg/cm
2Following is plain cast iron spare, is used for pressure 25Kg/cm
2Above is steel-casting, or the steel alloy of casting as requested.Steel Castings, the defect rate height, the size that requires on the very difficult assurance drawing in the production link so some product when test pressure, bearing capacity, may can become waste product again, thereby improve production cost because of not reaching requirement, has reduced productivity ratio.Valve in outdoor application, when environment temperature is lower than-5 ℃, freezing possibility is just arranged, steam valve or hot-water valve are worked as connected material not simultaneously, because the material shrinkage factor difference of expanding with heat and contract with cold, thereby variations in temperature often makes joint gas leakage, particularly at northern area, make troubles for industry and domestic water, ordinary production, life are affected.In addition, a large amount of bad Cold-hot water valves is observed, cold valves is except that normal service failure, and in pressing process of assembling, because the cast iron valve intensity difference, the dress rhegma is bad more.Because the highest withstand voltage 25Kg/cm of general Cold-hot water valve
2So, can not be used for high-pressure fluid control.Thereby the general hot and cold water valve of China and pipe connect and generally be used for running water and heating pipeline, by the control piper of dress, all adopts the pipeline welded flange to assemble on the chemical industry equipment, fetches by dress without the universal valve and the pipe of saving of work and time, and its equipment press the increase of dress expense.Connect technology from production universal valve, pipe, shell must pass through moulding-high temperature liquid iron casting-sand removal-temper-machined; In this process, the casting percent defective accounts for 30%, and the tempering percent defective accounts for 20%, and sand holes appear in machined, pore accounts for 5%, and the waste product that does not reach test pressure accounts for 3%, and the machined percent defective accounts for 3-5%, so total yield rate is about 50%.The a collection of valve of every production, pipe connect needs 8-10 days time, can only use the paragraph working system, can not form production line, because the machined difficulty is big, mechanical wear is fast, and special equipment is many, influences production efficiency, and the intensity of cast iron own is low, holding capacity is little, so when valve, pipe connect design, must increase wall thickness, strengthen cost like this, increased single weight.Therefore, must be connected on processing technology and structural design and material to cold and hot valve and pipe and improve, improve its performance, realize the automation of producing.By the swelling pressure moulding of bicycle middle shaft cover is observed, expected the swelling pressure moulding process that valve and pipe connect.
The purpose of this invention is to provide a kind of machining accuracy height, percent defective is low, and can alleviate labor strength, improves working conditions, and improves valve and pipe and connects intensity, and weight reduction can form production line, and can improve the valve of versatility and the production technology that pipe connects.
Above-mentioned goal of the invention is to adopt the tubulose steel, on relatively large press device, mould and swelling pressure material with special use, the swelling pressure material is positioned in the tubulose steel, places together then in the particular manufacturing craft, swelling pressure becomes valve or the pipe with the dies cavity identical appearance to connect.
But tubulose steel ordinary carbon steel, non-ferrous metal, stainless steel or other steel alloy, its internal diameter can connect the pipeline diameter selection that is connected according to valve or pipe, and its diameter range is 5-300mm, and long is 10-1000mm.Relatively large press device is meant hydraulic press and friction press or other the adjustable speed forcing press of pressure more than 200T.The swelling pressure material can adopt steel ball, polyamine fat, rubber, liquid or other to can be used for the material of metal swelling pressure moulding.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of triple valve swelling pressure moulding.
Wherein a kind of processing method schematic diagram after the swelling pressure moulding of Fig. 2.
In Fig. 1, the 1st, mould, 2 last items, 3 swelling pressure materials are under the 4 steel pipe normal temperature, swelling pressure material 3 is inserted in the steel pipe 4, put into mould 1 inner chamber then together, when swelling pressure material 3 is subjected to time spent of doing of last item 2, steel pipe 4 is subjected to the effect of swelling pressure material 3, along with pressure increases, thereby steel pipe 4 is presented and the identical shape of mould 1 inner chamber.
In Fig. 2, the side of the steel pipe 4 after the swelling pressure moulding, subdrilling one aperture is placed on drawing-die 5 in the steel pipe 4, under external force, drawing-die 5 is pulled out from the inside to surface, and then the lug boss of steel pipe 4 becomes through hole, thereby makes steel pipe 4 become triple valve.
Fig. 3 is that the pipe after tube-fitting expansion pressure moulding and the swelling pressure moulding connects schematic diagram.
Fig. 4 is swelling pressure moulding of two-port valve door and swelling pressure formed valve schematic diagram.
Fig. 5 is moulding of four way valve swelling pressure and swelling pressure formed valve schematic diagram.
Embodiment 1: adopt the 45# steel pipe of φ 16, long is 90mm, and with the friction press of 250T pressure, its mould adopts carbon tool steel, the same three-way cut-off valve of cavity shape, swelling pressure material selection polyamine fat rubber.
Embodiment 2: adopt φ 20, and the 45# steel pipe, long is 80mm, and with the hydraulic press of 300T pressure, its mould adopts carbon tool steel, and cavity shape connects shape with pipe.Swelling pressure material selection polyamine fat rubber, or rubber.
Embodiment 3: adopt φ 20 stainless steel tubes, long is 90mm, and with the hydraulic press of 300T pressure, its mould adopts the same Ball valve of carbon steel cavity shape, swelling pressure material selection polyamine fat rubber or steel ball.
Of the present invention comparing Yu prior art has:
1, can replace valve, pipe to connect the processing technology of casting, swelling pressure moulding on the Yong tube material Zai die for special purpose tool, its Zhan ground area is few, and the processing percent defective is low, single-piece in light weight, And can be mass-produced, can form production line. Ordinary circumstance, every forcing press per tour can be produced 500 Zuo You, every equipment Zhan ground 15-20m2, the processing percent defective is 1 ‰, and processing waste material is 5 ‰, and it is 50% of Zhu iron series products that single Zhi valve or pipe connect shell Chong amount, and transport of materials is Yu administrative expenses Zhan 2-4%. And adopting Zhu iron Zao method to produce, Ze needs workshop 200-300m2, disposal field 200-400m2, Zhi worker 20-30 people, every 5-10 days Zhu 1000-2000 Zhi Zuo You, yield rate only is 50-65%, 80% of processing waste material and auxiliary material Chong amount Zhan product Zong Chong, transport of materials and administrative expenses Zhan 30-40%.
2, Yong swelling pressure processing and forming valve or pipe connect, and can process stop valve, Zha valve, ball valve, Zhi and return the valve classes such as valve, and the pipes such as coupling, reducing coupling, threeway, four-way connect and cold water tap, take over the water nozzles such as water nozzle, stainless steel water nozzle. Can process the steel alloy of ordinary carbon steel, copper pipe, aluminum pipe or other nonferrous metal tube, stainless steel or other type, particularly unmanageable stainless valve, its meaning is more attached most importance to greatly.
3, to connect all be to be threaded Yu steel pipe Yong for valve and pipe, and cast product is easy to leak Yu the steel pipe expansion rate is different, valve and the pipe of the moulding of Yong steel pipe swelling pressure connect, its shrinkage factor is the same with the steel pipe that is connected, and filler just can solve its Seepage a little. And can reduce the Chong amount of chemical industry equipment, improve its functional reliability.
4, owing to valve, pipe with the steel pipe manufacturing connect, withstand voltage degree and steel pipe are basic identical, use so can be used on the pipeline such as tracheae, oil pipe, water pipe of multiple high pressure, high temperature, and can be not freezing at-30 ℃, improve the performance of product, can satisfy civilian and the general needs of chemical industry equipment.
Claims (4)
1, the swelling pressure moulding process that connects of a kind of universal valve, pipe, comprise: forcing press last item 2, swelling pressure material 3, steel pipe 4 and mould 1, it is characterized in that: swelling pressure material 3 is inserted in the steel pipe 4, steel pipe 4 is put into the inner chamber of mould 1, last item 2 with forcing press is pressed swelling pressure material 3, and valve or the pipe that 4 swelling pressures of steel pipe become and mould 1 inner chamber is identical shaped connect.
2, swelling pressure moulding process according to claim 1 is characterized in that: used tubulose steel 4 are ordinary carbon steel, non-ferrous metal, stainless steel or other steel alloy, its diameter range 5-300mm, and long is 10-1000mm.
3, swelling pressure moulding process according to claim 1 is characterized in that: swelling pressure material 3 is that polyamine fat, steel ball, liquid, rubber or other can be used for the material of swelling pressure moulding.
4, swelling pressure moulding process according to claim 1, it is characterized in that: forcing press is meant hydraulic press or friction press, or the forcing press of adjustable speed wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105267 CN1015694B (en) | 1989-04-07 | 1989-04-07 | Universal valve, tube-fitting expansion pressure forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105267 CN1015694B (en) | 1989-04-07 | 1989-04-07 | Universal valve, tube-fitting expansion pressure forming process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046107A true CN1046107A (en) | 1990-10-17 |
| CN1015694B CN1015694B (en) | 1992-03-04 |
Family
ID=4856034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105267 Expired CN1015694B (en) | 1989-04-07 | 1989-04-07 | Universal valve, tube-fitting expansion pressure forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015694B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471617C (en) * | 2006-12-20 | 2009-03-25 | 李俊松 | Making process of tube-sheet heat exchanger without seepage |
| CN101862782A (en) * | 2010-06-09 | 2010-10-20 | 哈尔滨工业大学 | Method for forming diameter-variable parts by viscoelastic-plastic flexible die |
| CN101992240A (en) * | 2009-08-15 | 2011-03-30 | 江西三川水表股份有限公司 | Processing process of meter case of water meter |
| CN102319790A (en) * | 2011-07-16 | 2012-01-18 | 陈国强 | A kind of processing method of valve body |
| CN103317309A (en) * | 2013-06-13 | 2013-09-25 | 何永水 | Ball manufacturing method of ball valve |
| CN104646480A (en) * | 2015-03-02 | 2015-05-27 | 安徽工业大学 | Method and device for forming light alloy reducing pipe |
| CN108927439A (en) * | 2018-06-21 | 2018-12-04 | 江西嘉陶无机材料有限公司 | A kind of material billow forming processing method based on chemical reaction |
| CN109848315A (en) * | 2019-03-01 | 2019-06-07 | 西格迈股份有限公司 | The split type moulding stamper and forming method of special-shaped surge drum |
| CN110253227A (en) * | 2019-07-09 | 2019-09-20 | 昆山新莱洁净应用材料股份有限公司 | A kind of processing technology of seat valve valve body |
-
1989
- 1989-04-07 CN CN 89105267 patent/CN1015694B/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471617C (en) * | 2006-12-20 | 2009-03-25 | 李俊松 | Making process of tube-sheet heat exchanger without seepage |
| CN101992240A (en) * | 2009-08-15 | 2011-03-30 | 江西三川水表股份有限公司 | Processing process of meter case of water meter |
| CN101862782A (en) * | 2010-06-09 | 2010-10-20 | 哈尔滨工业大学 | Method for forming diameter-variable parts by viscoelastic-plastic flexible die |
| CN102319790A (en) * | 2011-07-16 | 2012-01-18 | 陈国强 | A kind of processing method of valve body |
| CN103317309A (en) * | 2013-06-13 | 2013-09-25 | 何永水 | Ball manufacturing method of ball valve |
| CN104646480A (en) * | 2015-03-02 | 2015-05-27 | 安徽工业大学 | Method and device for forming light alloy reducing pipe |
| CN108927439A (en) * | 2018-06-21 | 2018-12-04 | 江西嘉陶无机材料有限公司 | A kind of material billow forming processing method based on chemical reaction |
| CN108927439B (en) * | 2018-06-21 | 2019-09-27 | 江西嘉陶无机材料有限公司 | A kind of material billow forming processing method based on chemical reaction |
| CN109848315A (en) * | 2019-03-01 | 2019-06-07 | 西格迈股份有限公司 | The split type moulding stamper and forming method of special-shaped surge drum |
| CN110253227A (en) * | 2019-07-09 | 2019-09-20 | 昆山新莱洁净应用材料股份有限公司 | A kind of processing technology of seat valve valve body |
| CN110253227B (en) * | 2019-07-09 | 2021-05-14 | 昆山新莱洁净应用材料股份有限公司 | Machining process of seat valve body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015694B (en) | 1992-03-04 |
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