CN104259746A - Method for manufacturing faucet shell - Google Patents
Method for manufacturing faucet shell Download PDFInfo
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- CN104259746A CN104259746A CN201410362486.3A CN201410362486A CN104259746A CN 104259746 A CN104259746 A CN 104259746A CN 201410362486 A CN201410362486 A CN 201410362486A CN 104259746 A CN104259746 A CN 104259746A
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- metal tube
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- swivel body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/037—Forming branched tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a method for manufacturing a faucet shell, and belongs to the technical field of faucets. The method solves the problem that an existing method for manufacturing the faucet shell wastes time and labor. The method for manufacturing the faucet shell comprises the following steps of A, machining preparation, B, sealing, C, medium injection, D, extrusion and E, opening. The method for manufacturing the faucet shell has the advantages that the utilization rate of raw materials is high; the technological prejudice of technical staff in the field of faucet shell manufacturing is overcome; in the machining process, the method saves energy and is environmentally-friendly; and the application range is wide.
Description
Technical field
The invention belongs to technical field of taps, relate to a kind of swivel body, particularly relate to a kind of preparation method of swivel body.
Background technology
Tap is for controlling current break-make, very common in daily life, its valve body generally adopts metal material to make, and divides by material, can be divided into SUS304 stainless steel, cast iron, overall plastic, brass, zinc alloy material tap, the first-class classification of the polymer composite fire hose.And holding at high price along with metal material, labor wage is every year in high speed ascendant trend, the strict demand of new national standard heavy metal element amount of precipitation again, adds the pay attention to day by day of China to energy-conserving and environment-protective, how to improve the cost performance that tap produces and becomes people's urgent need to solve the problem.
For this difficult problem, what have in each enterprise reduces the amount of labour used by adding automation equipment; What have carries out technique research and development, reduces manufacturing cost; What also have is reduced costs by the mode copper product of swivel body being replaced with the materials such as kirsite, also reduces the quality of swivel body simultaneously.But the effect of above various coping styles is all undesirable.
For this situation, applicant once designed a kind of manufacture method of tap valve body, and had applied for Chinese patent, and [its application number is: 200610025428.7; Its publication number is: CN1831408A], this manufacture method with undertaken by thermal forging technology parts processing, all parts is welded into thick finished product and accurately machined step manufactures tap valve body, merge the advantage of thermal forging technology and casting technique, the mass deficiency and the forged material that avoid casting generation waste large shortcoming, the tap valve body obtained by this manufacture method saves the use amount of material greatly, reduce cost of manufacture, its processing quality is also easy to control.
Although above-mentioned manufacture method can improve stock utilization effectively, obtain all parts by thermal forging technology, whole process is wasted time and energy, and the workload of workman is not reduced effectively.
Summary of the invention
The object of the invention is the problems referred to above existed for prior art, propose the high and preparation method of the swivel body that working (machining) efficiency is high of a kind of stock utilization.
Object of the present invention realizes by following technical proposal:
The preparation method of swivel body, is characterized in that, described preparation method comprises the following steps:
A, processing prepare: the metal tube and the inside that prepare Len req have the mould that can hold the cavity of above-mentioned metal tube, and the sidepiece being positioned at cavity in mould also has the forming cavity be connected with cavity;
B, sealing: cavity metal tube being put into above-mentioned mould, plug and the end in column and inside with the seal of axially extending bore are stretched into respectively the two ends of metal tube, make one end of plug sealed metal tube, make to be formed between the lateral surface of the end of seal and the madial wall of the metal tube other end to seal;
C, injected media: in metal tube, inject liquid medium by the through hole in above-mentioned seal, until the pressure of liquid medium in metal tube reaches setting value;
D, extruding: by applying the inside extrusion metal pipe of mode of axial force to the end of metal tube, the axial length of metal tube is shortened and the sidewall of the lateral surface of metal tube and mould internal cavity is reclined completely and makes the sidewall of metal tube bloat convex closure in above-mentioned forming cavity;
E, opening: open-ended by the convex closure after shaping, obtain the swivel body of at least threeway.
The preparation method of this swivel body utilizes metal tube as raw material, the swivel body of at least threeway of an integral type is molded again by the mode of extrusion metal pipe, make in swivel body process, raw material are farthest utilized, and once extrudedly make whole process comparatively quick, improve working (machining) efficiency.In the preparation method of this swivel body, the shape of the shape of cavity, the quantity of forming cavity and forming cavity can adjust according to actual needs; Injecting the object of liquid medium is provide enough pressure to support the body of whole metal tube in metal tube inside, makes it can not the inside deformation when being squeezed; Peak-settings can be 25MPa or 50Mpa etc. by the setting value injecting the pressure of the liquid medium of metal tube inside, and concrete setting value setting can according to the material of metal tube, and wall thickness of metal tube etc. factor is carried out selection and determined.
In the preparation method of above-mentioned swivel body, in described step D, a damping piece is also provided with in above-mentioned forming cavity, this damping piece can lean with the end, outer end of convex closure that bloats on above-mentioned metal tube sidewall, when described metal tube is subject to axial force, above-mentioned convex closure can overcome resistance that described damping piece applies convex closure end and bulge and promote above-mentioned damping piece and moves to the direction away from above-mentioned metal tube.The deformation of convex closure is stopped by damping piece, make metal tube when being extruded and sidewall bloats convex closure, convex closure directly will be broken through by the pressure of interior liquid medium because not having in forming cavity to hinder, ensure that convex closure bloats the integrality in process by the mode of limit squish lip recession damping piece, ensure the quality of product in extrusion process.
In the preparation method of above-mentioned swivel body, described damping piece is tabular, and the mating shapes of the shape that formed of the edge of damping piece and above-mentioned forming cavity cross section.When damping piece is arranged in forming cavity, forming cavity can be blocked completely, prevent convex closure self-damping part sidewall from extruding.
In the preparation method of above-mentioned swivel body, in described step B, seal comprises in column and the inside main body with axially extending bore and the annular sealing portion be coaxially set with main body that is positioned at body end, shape and the size of the shape of the lateral surface in sealing portion and size and above-mentioned metal tube end madial wall match, described sealing and the junction of main body have the abutment face that can lean with the end of metal tube, formed when sealing between the lateral surface of described sealing and the madial wall of above-mentioned metal tube, between described abutment face and the end of metal tube, there is spacing.During sealing, between abutment face and metal tube, there is spacing, then when extruding, seal axially advancing to metal tube direction along metal tube, abutment face is close to metal tube end, and the liquid medium of metal tube inside is extruded and pressure continues to raise, and ensure that the support strength of liquid medium.Same, plug also can adopt the structure identical with seal, and difference is that plug is solid, during sealing, the abutment face on plug also can and the end of metal tube between there is spacing.
In the preparation method of above-mentioned swivel body, described mould comprises upper mold section and female die, described cavity comprises and is correspondingly respectively arranged on the downside of above-mentioned upper mold section and upper plenum on the upside of female die and lower cavity, described forming cavity is positioned on above-mentioned upper mold section, between above-mentioned steps D and step e, after the convex closure that metal tube sidewall bloats is shaping, seal and plug are extracted from metal tube two ends respectively, upper mold section is separated with female die, and damping piece moves to metal tube direction and promotes metal tube and departs from from upper mold section.The setting of damping piece, not only can be used for preventing convex closure from being racked, and also facilitates the demoulding after metal tube processing.
In the preparation method of above-mentioned swivel body, in described step e, by the mode of the end of cutting convex closure, opening is carried out to the end of convex closure.
In the preparation method of above-mentioned swivel body, in described steps A, metal tube is brass tube or stainless steel tube.Swivel body generally adopts copper product to make, and copper product divides two kinds, and one is red copper i.e. fine copper; One is brass i.e. ormolu.Although both belong to copper product, the different from those of brass and red copper is very large, and the intensity of red copper is low, but ductility is good especially, and after making valve body, intensity is not enough, is unfavorable for following process; And the intensity of brass is far away higher than red copper, but its ductility differs huge with red copper.In the cognition of those skilled in the art, the intensity of brass is very high and ductility is excessively poor, extrusion process cannot be carried out, the mode can only made by red impact forging is processed, namely need first to heat to reduce its intensity to brass material and improve machinability to change its shape again, it is comparatively inconvenient to there is processing in the mode that red impact forging is made, and requires higher to process equipment, mould etc., also easily causes the problem of environmental pollution.But the preparation method of this swivel body overcomes the technology prejudice of those skilled in the art, obtain the swivel body of sufficient intensity by the processing extruded brass material and improve working (machining) efficiency, and obtain checking by actual enforcement, respond well, and with stainless characteristic, be suitable for the preparation method of this swivel body equally.
In the preparation method of above-mentioned swivel body, the liquid medium in described step C is water.Supported by water, machine rear recyclable, also can not pollute the actual use of swivel body even if residual to some extent, energy-conserving and environment-protective.
In the preparation method of above-mentioned swivel body, the quantity of described forming cavity is one or more, and is all positioned at the sidepiece of above-mentioned cavity and is connected with cavity.According to the needs of actual swivel body, multiple forming cavity can be set, thus form four-way, five-way or six logical swivel bodies.
Compared with prior art, the preparation method of this swivel body has the following advantages:
1, the preparation method of this swivel body adopts metal tube as raw material but not bar, decreases the spillage of material in valve body process, reduces cost.
2, the preparation method of this swivel body adopts the mode of extruding to process brass tube or stainless steel tube, overcome the technology prejudice of those skilled in the art, the intensity of the swivel body after processing is guaranteed, and simplifies process, improve working (machining) efficiency.
3, the preparation method of this swivel body carrys out support metal pipe by the mode injecting water in metal tube, make metal tube inwardly deformation can not occur in extrusion process, ensure that the quality of processing, and the pollution of swivel body can not be caused with water, also be convenient to reclaim, energy-conserving and environment-protective.
4, the preparation method of this swivel body is not only applicable to the making of three-way water tap shell, also can be applicable to the making of the swivel body such as four-way, five-way as required, more can be applied to stainless steel, red copper, aluminium, the making of the metal materials such as iron, applied widely.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of metal tube in the preparation method of this swivel body.
Fig. 2 is the sectional structure schematic diagram that in the preparation method of this swivel body, metal tube is arranged at the sealing of after in mould and two ends.
Fig. 3 is that in the preparation method of this swivel body, metal tube is squeezed the sectional structure schematic diagram of rear wall when bloating convex closure.
Fig. 4 is the sectional structure schematic diagram of the three-way water tap shell after the preparation method of this swivel body completes.
Fig. 5 is the preparation method process chart of this swivel body.
Fig. 6 is the sectional structure schematic diagram that in the preparation method of this swivel body, three-way water tap shell is applied particularly to tap place.
Fig. 7 is the structural representation of the four-way swivel body that the preparation method of this swivel body makes.
Fig. 8 is the structural representation of the another kind of four-way swivel body that the preparation method of this swivel body makes.
Fig. 9 is the structural representation with the three-way water tap shell of tapering that the preparation method of this swivel body makes.
In figure, 1, metal tube; 12, convex closure; 2, mould; 21, cavity; 22, forming cavity; 23, upper mold section; 23a, upper plenum; 24, female die; 24a, lower cavity; 3, seal; 31, main body; 32, sealing; 33, abutment face; 4, damping piece; 5, plug.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Fig. 1 ~ Fig. 5, the preparation method of swivel body comprises the following steps:
A, processing prepare: the metal tube 1 and the inside that prepare Len req have the mould 2 with the cavity 21 of the mating shapes of metal tube 1, and the sidepiece being positioned at cavity 21 in mould 2 also has the forming cavity 22 be connected with cavity 21;
In the present embodiment, the equal pipe that metal tube 1 adopts brass or stainless steel to make, it can cut down on longer metal tube 1 raw material, also directly can buy acquisition, and the metal tube 1 that cutting obtains first can carry out temper to eliminate the internal stress of metal tube.Cavity 21 and forming cavity 22 are all in cylindric, and the external diameter size of the pore size of cavity 21 and metal tube 1 matches, and the quantity of forming cavity 22 is one and it is axially arranged with the axes normal of cavity 21.
B, sealing: the cavity 21 metal tube 1 being put into mould 2, the end of the tubular seal 3 and plug 5 inside with through hole stretches into the two ends of metal tube 1 respectively, and make one end of plug 5 sealed metal tube 1, make to be formed between the lateral surface of seal 3 end and the madial wall of the metal tube other end to seal;
Here, mould 2 comprises upper mold section 23 and female die 24, and cavity 21 comprises and is correspondingly respectively arranged on the downside of upper mold section 23 and upper plenum 23a on the upside of female die 24 and lower cavity 24a, and forming cavity 22 is positioned on upper mold section 23.When placing metal tube 1, be separated by upper mold section 23 with female die 24, close in lower cavity 24a metal tube 1 being positioned over female die 24 upper mold section 23 again.
The circular sealing 32 be coaxially set with main body 31 that seal 3 comprises cylindrical main body 31 and is positioned at main body 31 end, the external diameter of main body 31 is greater than the internal diameter of metal tube 1, the external diameter of sealing 32 and the internal diameter size of metal tube 1 match, and sealing 32 has the abutment face 33 that can lean with the end of metal tube 1 with the junction of main body 31.The sealing 32 of seal 3 end to be stretched in metal tube 1 and make to be formed between the lateral surface of sealing 32 and the madial wall of metal tube 1 seal time, between the end of abutment face 33 and metal tube 1, there is spacing.
The cylindrical protrusion be coaxially set with body that plug 5 comprises the body in cylinder and is positioned at body end, the diameter of body is greater than the internal diameter of metal tube 1, the diameter of protuberance and the internal diameter size of metal tube 1 match, and the junction of protuberance and body has the abutment face that can lean with the end of metal tube 1.When being stretched into by the protuberance of plug 5 end in metal tube 1 and make metal tube 1 one end be sealed, between the end of abutment face and metal tube 1, there is spacing.
C, injected media: in metal tube 1, inject liquid medium by the through hole inside tubular seal 3, until the pressure of liquid medium in metal tube 1 reaches setting value;
Liquid medium is water, and injecting the object of liquid medium is provide enough pressure to support the body of whole metal tube 1 in metal tube 1 inside, makes it can not the inside deformation when being squeezed; The setting value injecting the pressure of the liquid medium of metal tube 1 inside can select 25MPa or 50MPa, and concrete pressure set points can be carried out selection according to practical factors such as the wall thickness of the material of metal tube 1, metal tube 1 and be determined.
D, extruding: axially the advancing to metal tube 1 direction along metal tube 1 seal 3 and plug 5, applied the inside extrusion metal pipe 1 of mode of axial force by the end of abutment face 33 pairs of metal tubes 1, the axial length of metal tube 1 is shortened and the sidewall of the lateral surface of metal tube 1 and mould 2 internal cavity 21 is reclined completely and makes the sidewall of metal tube 1 bloat convex closure 12 in above-mentioned forming cavity 22; When seal 3 and plug 5 advance to metal tube 1 direction, abutment face 33 on seal 3 and the abutment face on plug 5 close to metal tube 1 end, the liquid medium of seal 3 and plug 5 extrusion metal pipe 1 inside and make the pressure of liquid medium continue to raise, ensure that the support strength of liquid medium.
In this extrusion process, a damping piece 4 is also provided with in forming cavity 22, this damping piece 4 can lean with the end, outer end of convex closure 12 that bloats on metal tube 1 sidewall, when metal tube 1 is subject to axial force, damping piece 4 exits to the direction away from metal tube 1 and in its process exited, and the end, outer end of convex closure 12 leans with damping piece 4 all the time and the end of damping piece 4 pairs of convex closures 12 applies to stop the resistance of its outside deformation.In the present embodiment, damping piece 4 is in discoideus, the diameter of damping piece 4 is slightly less than the aperture of forming cavity 22, the mode that damping piece 4 applies resistance can adopt the rate of withdraw of damping piece 4 to be less than and not be subject to the speed that when damping piece 4 stops, convex closure 12 bulges, and drag size also can the demand shaping according to actual swivel body adjust.
Here, the deformation of convex closure 12 is stopped by damping piece 4, make metal tube 1 when being extruded and sidewall bloats convex closure 12, convex closure 12 directly will be broken through by the pressure of interior liquid medium because not having in forming cavity 22 to hinder, and can ensure that convex closure 12 bloats the integrality in process by the mode of limit squish lip recession damping piece 4, ensure the quality of product in extrusion process.The rate of withdraw of damping piece 4 is lower, and the length that metal tube 1 can be made to be shortened is stacked on the tube wall of metal tube 1, and the thickness of metal tube 1 sidewall increases and because being improve compactness by pressure extrusion, greatly can promote the tube wall strength after metal tube 1 processing.
D1, the demoulding: after the convex closure 12 that metal tube 1 sidewall bloats is crowded with whole forming cavities 22, seal 3 and plug stop advancing and away from metal tube 1, upper mold section 23 is separated with female die 24, and damping piece 4 moves to metal tube 1 direction and promotes metal tube 1 and departs from from upper mold section 23.Here, for convenience of metal tube 1 demoulding smoothly, the madial wall of forming cavity 22 can be the conical surface tilted by a small margin.
E, opening: by the end cut opening of the convex closure 12 after shaping, obtain the swivel body of threeway as shown in Figure 4.
The preparation method of this swivel body utilizes brass tube or stainless steel tube as processing raw material, the swivel body of the threeway of an integral type is molded again by the mode of extrusion metal pipe 1, make in swivel body process, the part material of convex closure 12 end is only had to depart from valve body because of cutting, raw material obtain and farthest utilize, and once extrudedly make whole process comparatively quick, improve working (machining) efficiency.
For ensureing the quality stability of swivel body Long-Time Service, it generally adopts copper product to make, and copper product divides two kinds, and one is red copper i.e. fine copper; One is brass i.e. ormolu.Although both belong to copper product, but the different from those of brass and red copper is very large: the quality of red copper is soft, and intensity is lower, but ductility is good especially, and after making swivel body, there is intensity deficiency, be unfavorable for following process and the high problem of production cost; And the intensity of brass is far away higher than red copper, but its ductility differs huge with red copper.
In the cognition of those skilled in the art, the intensity of brass is very high and ductility is excessively poor, extrusion process cannot be carried out at all, the mode can only made by red impact forging is processed, and namely needing first to heat to reduce its intensity to brass material and change its shape after improving machinability again becomes swivel body.But it is loaded down with trivial details to there is procedure of processing in the mode that red impact forging is made, processing inconvenience, and require higher to heat resistances such as process equipment, moulds 2, the also easy problem causing environmental pollution because of the burning of fuel.But the preparation method of this swivel body overcomes the technology prejudice of those skilled in the art, obtain the swivel body of sufficient intensity by the processing extruded brass material and improve working (machining) efficiency, and obtain checking by actual enforcement, respond well.And same, with stainless characteristic, be suitable for equally the preparation method of this swivel body, the metal material that the ductility such as other is as red copper, aluminium, iron are better than brass is obviously also suitable for the preparation method of this swivel body.
In addition, according to the needs of actual swivel body, mould 2 in the preparation method of this swivel body correspondingly can be adjusted: during as needed the swivel body making more than four-way or four-way, several forming cavity 22 be connected with cavity 21 correspondingly can be offered in mould 2, the sidewall of metal tube 1 is made to bloat multiple convex closure 12, as shown in Figure 7 and Figure 8, and correspondingly, quantity and its translational speed of damping piece 4 also should correspondingly adjust, the position of forming cavity 22 and shape also determine position and the shape of convex closure 12, can do corresponding adjustment equally.As erose swivel body need be made, also the shape of the cavity 21 in mould can be adjusted, make it roughly in Pear-Shaped or the shape needed for other, afterwards extrusion metal pipe 1, its lateral surface is expanded to and reclines completely with the madial wall of cavity 21.
In addition, the shape of metal tube 1 also can adopt non-equal pipe, as shown in Figure 9 by processing equal pipe the taper tube of the reduced diameter that obtains, obtain overall sweeping bend pipe etc. by bending equal pipe.During concrete use, valve seat can be fixedly connected to the inner side so that the assemblies such as spool fixing at convex closure 12, now, above-mentioned for can be for further processing after the machining of metal tube 1, one end reducing as shown in an end closure, two ends screw thread process and Fig. 6 and one end expanding etc.According to the demand of actual product structure and installation, also can in the shell of threeway, be connected in two other port except convex closure 12 valve seat and spool.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. the preparation method of swivel body, is characterized in that, described preparation method comprises the following steps:
A, processing prepare: the metal tube (1) of preparation Len req and inside have the mould (2) of the cavity that can hold above-mentioned metal tube (1), and the sidepiece being positioned at cavity in mould (2) also has the forming cavity (22) be connected with cavity;
B, sealing: cavity metal tube (1) being put into above-mentioned mould (2), plug (5) and the end in column and inside with the seal (3) of axially extending bore are stretched into respectively the two ends of metal tube (1), make one end of plug (5) sealed metal tube (1), make to be formed between the madial wall of the lateral surface of the end of seal (3) and metal tube (1) other end to seal;
C, injected media: inject liquid medium in metal tube (1) by the through hole in above-mentioned seal (3), until the pressure of liquid medium in metal tube (1) reaches setting value;
D, extruding: by applying the inside extrusion metal pipe (1) of mode of axial force to the end of metal tube (1), the axial length of metal tube (1) is shortened and the sidewall of the lateral surface of metal tube (1) and mould (2) internal cavity is reclined completely and makes the sidewall of metal tube (1) bloat convex closure (12) in above-mentioned forming cavity (22);
E, opening: open-ended by the convex closure (12) after shaping, obtain the swivel body of at least threeway.
2. the preparation method of swivel body according to claim 1, it is characterized in that, in described step D, a damping piece (4) is also provided with in above-mentioned forming cavity (22), this damping piece (4) can lean with the end, outer end of convex closure (12) that bloats on above-mentioned metal tube (1) sidewall, when described metal tube (1) is subject to axial force, above-mentioned convex closure can overcome resistance that described damping piece applies convex closure end and bulge and promote above-mentioned damping piece and moves to the direction away from above-mentioned metal tube.
3. the preparation method of swivel body according to claim 2, it is characterized in that, described damping piece (4) is in tabular, and the mating shapes of the shape that formed of the edge of damping piece (4) and above-mentioned forming cavity (22) cross section.
4. the preparation method of the swivel body according to claim 1 or 2 or 3, it is characterized in that, in described step B, seal (3) comprises in column and the inside main body (31) with axially extending bore and the annular sealing portion (32) be coaxially set with main body (31) that is positioned at main body (31) end, shape and the size of the shape of the lateral surface in sealing portion (32) and size and above-mentioned metal tube (1) tip inside wall match, described sealing (32) has the abutment face (33) that can lean with the end of metal tube (1) with the junction of main body (31), formed when sealing between the lateral surface of described sealing (32) and the madial wall of above-mentioned metal tube (1), between described abutment face (33) and the end of metal tube (1), there is spacing.
5. the preparation method of the swivel body according to Claims 2 or 3, it is characterized in that, described mould (2) comprises upper mold section (23) and female die (24), described cavity comprises upper plenum (23a) and the lower cavity (24a) that correspondence is respectively arranged at above-mentioned upper mold section (23) downside and female die (24) upside, described forming cavity (22) is positioned on above-mentioned upper mold section (23), between above-mentioned steps D and step e, after the convex closure (12) that metal tube (1) sidewall bloats is shaping, seal (3) and plug (5) are extracted from metal tube (1) two ends respectively, upper mold section (23) is separated with female die (24), damping piece (4) moves to metal tube (1) direction and promotes metal tube (1) and departs from from upper mold section (23).
6. the preparation method of the swivel body according to claim 1 or 2 or 3, is characterized in that, in described step e, carries out opening by the end of mode to convex closure (12) of the end of cutting convex closure (12).
7. the preparation method of the swivel body according to claim 1 or 2 or 3, is characterized in that, in described steps A, metal tube (1) is brass tube or stainless steel tube.
8. the preparation method of the swivel body according to claim 1 or 2 or 3, is characterized in that, the liquid medium in described step C is water.
9. the preparation method of the swivel body according to claim 1 or 2 or 3, is characterized in that, the quantity of described forming cavity (22) is one or more, and is all positioned at the sidepiece of above-mentioned cavity and is connected with cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410362486.3A CN104259746A (en) | 2014-07-28 | 2014-07-28 | Method for manufacturing faucet shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410362486.3A CN104259746A (en) | 2014-07-28 | 2014-07-28 | Method for manufacturing faucet shell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537364A (en) * | 2016-01-21 | 2016-05-04 | 连云港珍珠河石化管件有限公司 | Preparation method for bi-metal composite t-branch pipe |
| CN106567976A (en) * | 2016-05-05 | 2017-04-19 | 广东思豪液压机械有限公司 | Double-compression three-way copper tube and forming method thereof |
| CN106623580A (en) * | 2017-01-10 | 2017-05-10 | 哈尔滨宇航精创科技有限公司 | Method for manufacturing bathroom water faucet branch pipe by compounding hot extrusion with superplastic bulging |
| CN112828119A (en) * | 2021-01-07 | 2021-05-25 | 张宁宁 | Extrusion die for five-way pipe |
| CN113028114A (en) * | 2021-04-15 | 2021-06-25 | 陈崇南 | Blank body suitable for flat oval cavity of multi-valve type valve and containing valve body and valve cover and forming method |
| CN113028116A (en) * | 2021-03-29 | 2021-06-25 | 陈崇南 | Blank body of circular cavity valve body-containing valve cover suitable for multi-valve valves and machining method |
| CN113523711A (en) * | 2020-04-20 | 2021-10-22 | 三川智慧科技股份有限公司 | Stainless steel water meter shell blank, preparation method and stainless steel water meter shell |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537364A (en) * | 2016-01-21 | 2016-05-04 | 连云港珍珠河石化管件有限公司 | Preparation method for bi-metal composite t-branch pipe |
| CN106567976A (en) * | 2016-05-05 | 2017-04-19 | 广东思豪液压机械有限公司 | Double-compression three-way copper tube and forming method thereof |
| CN106623580A (en) * | 2017-01-10 | 2017-05-10 | 哈尔滨宇航精创科技有限公司 | Method for manufacturing bathroom water faucet branch pipe by compounding hot extrusion with superplastic bulging |
| CN106623580B (en) * | 2017-01-10 | 2018-06-01 | 哈尔滨宇航精创科技有限公司 | A kind of hot extrusion and the method for expansive forming composite manufacturing bathroom faucet branch pipe |
| CN113523711A (en) * | 2020-04-20 | 2021-10-22 | 三川智慧科技股份有限公司 | Stainless steel water meter shell blank, preparation method and stainless steel water meter shell |
| CN112828119A (en) * | 2021-01-07 | 2021-05-25 | 张宁宁 | Extrusion die for five-way pipe |
| CN113028116A (en) * | 2021-03-29 | 2021-06-25 | 陈崇南 | Blank body of circular cavity valve body-containing valve cover suitable for multi-valve valves and machining method |
| CN113028114A (en) * | 2021-04-15 | 2021-06-25 | 陈崇南 | Blank body suitable for flat oval cavity of multi-valve type valve and containing valve body and valve cover and forming method |
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Application publication date: 20150107 |