CN114669649A - Brass tee joint blank forming process - Google Patents
Brass tee joint blank forming process Download PDFInfo
- Publication number
- CN114669649A CN114669649A CN202210220401.2A CN202210220401A CN114669649A CN 114669649 A CN114669649 A CN 114669649A CN 202210220401 A CN202210220401 A CN 202210220401A CN 114669649 A CN114669649 A CN 114669649A
- Authority
- CN
- China
- Prior art keywords
- brass
- core print
- core
- die
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 56
- 239000010951 brass Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 claims description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 238000000641 cold extrusion Methods 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention provides a brass tee joint blank forming process, which solves the technical problem and comprises the following steps: firstly, blanking and cleaning a brass pipe; secondly, placing the cleaned brass tube into a mold cavity, respectively inserting a core print I and a core print II into the opening parts at the two ends of the mold cavity, and sealing the openings at the two ends of the mold cavity; pushing the core print I and the core print II to extrude the core print I and the core print II to a first preset position in the die cavity by adopting a press, and introducing high-pressure water into the die cavity through the center of the core print I; extruding the core print I and the core print II to a second preset position in the die cavity, and forming a brass pipe into a brass three-way blank; and step five, opening the die and stripping the material. The brass pipe is processed by adopting a cold extrusion process, so that the manufacturing efficiency of the brass tee joint can be improved, and meanwhile, the production cost can be reduced.
Description
Technical Field
The invention belongs to the technical field of tee joint blank forming, and particularly relates to a brass tee joint blank forming process.
Background
Brass is alloy copper, the total hardness of which is higher than that of red copper, and in the process of manufacturing a tee joint by adopting brass, the traditional method adopts a red punching process, wherein the red punching process is to heat a metal material to a certain temperature, place the metal material into a preheated die, and enable the metal material to generate plastic deformation by a press machine tool so as to obtain pressing with required size, shape and good mechanical property; however, the method has the disadvantages of low processing efficiency, high consumption of copper materials and high production cost.
Disclosure of Invention
The invention aims to provide a brass tee blank forming process, which adopts a cold extrusion process to treat a brass pipe, can improve the manufacturing efficiency of brass tee and can reduce the production cost.
The invention provides a brass tee joint blank forming process, which solves the technical problem that the technical scheme comprises the following steps:
firstly, blanking and cleaning a brass pipe;
secondly, placing the cleaned brass tube into a mold cavity, respectively inserting a core print I and a core print II into the opening parts at the two ends of the mold cavity, and sealing the openings at the two ends of the mold cavity;
pushing the core print I and the core print II to extrude the core print I and the core print II to a first preset position in the die cavity by adopting a press, and introducing high-pressure water into the die cavity through the center of the core print I;
extruding the core print I and the core print II into the die cavity of the die to a second preset position, and forming a brass pipe into a brass three-way blank;
and step five, opening the die and stripping the material.
Preferably, the cleaning of the brass tube in the first step includes removing oil and copper foam.
Preferably, in the second step, one end of each of the core print I and the core print II is inserted into the brass pipe.
Preferably, the core print I comprises a first base and a first stamping column connected with the first base, and the high-pressure water inlet channel penetrates through the first base and the first stamping column; the first punching column is a cylinder and comprises a first punching body, a second punching body and a third punching body which are in stepped distribution, the diameters of the first punching body, the second punching body and the third punching body are sequentially reduced, and the high-pressure water inlet channel penetrates through the first punching body, the second punching body and the third punching body.
Preferably, the core print II comprises a second base and a second stamping column connected with the second base; the second punching column is a cylinder and comprises a fourth punching body, a fifth punching body and a sixth punching body which are in stepped distribution, and the diameters of the fourth punching body, the fifth punching body and the sixth punching body are sequentially reduced.
Preferably, the die cavity is a T-shaped cavity and comprises a first cavity matched with the core print I, a second cavity matched with the core print II and a third cavity vertically connecting the first cavity and the second cavity.
Preferably, the core head I is provided with a high-pressure water channel, and high-pressure water of 150-250MPa is introduced into the mold cavity in the third step.
Preferably, the mold comprises an upper mold and a lower mold, and the upper mold and the lower mold form a plurality of mold cavities after being closed.
Preferably, when the core print I and the core print II are arranged at a first preset position, a gap exists between the ends of the core print I and the core print II, which are positioned in the mold cavity; when the core print I and the core print II are arranged at the second preset position, the ends of the core print I and the core print II, which are positioned in the die cavity, are mutually contacted.
In summary, the technical scheme of the invention at least has the following beneficial effects:
1. the size and the structure of the die are simple, the service life of the die is long, and the red stamping die is easy to crack;
2. the cold extrusion die can easily realize one-production-multiple-production, the equipment investment is relatively small, the production cost is reduced, and the production efficiency is improved;
3. the production process is safe, energy-saving and environment-friendly, the material is not heated by natural gas or an electric furnace, and no waste gas, noise and the like exist in the production process;
4. the yield in the production process is higher, the yield is improved to about 46 percent from about 31 percent, and the cost is reduced by more than 2000 yuan/ton.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a top plan view of the overall structure of the present invention;
FIG. 2 is a view of the core I and core II of the present invention in a first predetermined position;
FIG. 3 is a view of the core I and core II of the present invention in a second predetermined position;
FIG. 4 is a schematic view of the forming structure of a brass three-way blank of the present invention.
In the figure: 1. a core print I; 2. a core print II; 3. an upper die; 4. a lower die; 5. a first cavity; 6. a second cavity; 7. a third cavity; 8. a high-pressure water channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a brass three-way blank forming process, which comprises the following steps as shown in figures 1-4:
firstly, blanking and cleaning a brass pipe;
secondly, placing the cleaned brass tube into a mold cavity, respectively inserting a core print I1 and a core print II 2 into the opening parts at the two ends of the mold cavity, and sealing the openings at the two ends of the mold cavity;
Pushing the core print I1 and the core print II 2 to extrude the inner part of the die cavity to a first preset position by adopting a press, and introducing high-pressure water into the die cavity through the center of the core print I1;
step four, extruding the core print I1 and the core print II 2 to a second preset position in the die cavity, and forming a brass pipe into a brass three-way blank;
and step five, opening the die and stripping the material.
In the actual production, the die comprises an extrusion die and a stamping die, wherein the stamping die comprises a core I1 and a core II 2, the extrusion die comprises an upper die 3 and a lower die 4 and is used for placing and fixing a brass pipe to be subjected to cold extrusion molding, after the brass pipe is blanked, the brass pipe after blanking and before cold extrusion processing is cleaned, wherein the main cleaning content comprises oil removal and copper foam removal; after the brass pipe is cleaned, the brass pipe is placed in an extrusion die, and the brass pipe is fixed under the action of an upper die 3 and a lower die 4, wherein a die cavity is formed on the extrusion die, the die cavity in the invention is a T-shaped cavity and comprises a first cavity 5 matched with a core head I1, a second cavity 6 matched with a core head II 2 and a third cavity 7 vertically connecting the first cavity 5 and the second cavity 6.
The device comprises a die, a core head I1, a core head II 2, a high-pressure water inlet channel, a high-pressure water outlet channel and a high-pressure water outlet channel, wherein the die is mainly realized through the stamping action of the core head I1 and the core head II 2, when in actual work, after a brass pipe is placed into an extrusion die, the open parts at two ends of a die cavity of the die are sealed through the core head I1 and the core head II 2, so that a closed space is formed inside the brass pipe, the core head I1 comprises a first base and a first stamping column connected with the first base, and the high-pressure water inlet channel penetrates through the first base and the first stamping column; the first punching column is a cylinder and comprises a first punching body, a second punching body and a third punching body which are distributed in a stepped manner, the diameters of the first punching body, the second punching body and the third punching body are sequentially reduced, and the high-pressure water inlet channel penetrates through the first punching body, the second punching body and the third punching body; the core print II 2 comprises a second base and a second stamping column connected with the second base; the second punching column is a cylinder and comprises three sections of a fourth punching body, a fifth punching body and a sixth punching body which are distributed in a stepped manner, and the diameters of the fourth punching body, the fifth punching body and the sixth punching body are sequentially reduced; like this insert the brass pipe at core I1 and core II 2 after, can be through the fine realization sealed effect of core I1 and core II 2's self structure.
Wherein the inserted position of core I1 and core II 2 has first default position and second default position at least when actual production, when core I1 and core II 2 are located first default position, there is the interval between the end that core I1 and core II 2 are located mould cavity inside, and brass is inside to form a confined space this moment, moreover in the die cavity
The high-pressure water channel 8 is formed in the core head I1, 150-250Mpa high-pressure water is introduced into the die cavity through the core head I1 at the position, it is guaranteed that sufficient water pressure causes plastic deformation of the brass pipe subsequently, after the water pressure in the brass pipe reaches a certain pressure, the core head I1 and the core head II 2 are pushed by the pressure cylinder to extrude inwards and reach a second preset position (the ends of the core head I1 and the core head II 2 located in the die cavity are in contact with each other), so under the action of high pressure, the middle of the brass pipe extends into the third die cavity 7, a T-shaped tee joint structure is formed, and forming of a tee joint blank is completed at the moment.
In order to improve the production efficiency in actual production, the upper die 3 and the lower die 4 are matched to form a plurality of die cavities, so that a plurality of workpieces can be formed by one-time extrusion and processed simultaneously, and the working efficiency is improved.
The die has the advantages of simple cavity, simple processing and long service life, and can realize more processing effects as long as the processing equipment is large enough; the method abandons the limitation that the traditional brass tee joint can only be processed by adopting a red punching process, the production process is cold extrusion processing, natural gas or electric furnace heating is not needed, no waste gas or noise is generated in the production process, the method is safer and more environment-friendly, and meanwhile, the consumption of raw materials can be reduced, and the production cost is reduced.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A brass three-way blank forming process is characterized by comprising the following steps:
firstly, blanking and cleaning a brass pipe;
secondly, placing the cleaned brass tube into a mold cavity, respectively inserting a core print I and a core print II into the opening parts at the two ends of the mold cavity, and sealing the openings at the two ends of the mold cavity;
pushing the core print I and the core print II to extrude the core print I and the core print II to a first preset position in the die cavity by adopting a press, and introducing high-pressure water into the die cavity through the center of the core print I;
Extruding the core print I and the core print II into the die cavity of the die to a second preset position, and forming a brass pipe into a brass three-way blank;
and step five, opening the die and stripping the material.
2. The process of claim 1, wherein the cleaning of the brass tube in the first step comprises removing oil and copper.
3. The brass three-way blank forming process as claimed in claim 1, wherein in the second step, one end of each of the core print I and the core print II is inserted into the brass tube.
4. The brass three-way blank forming process as claimed in claim 1, wherein the core head I comprises a first base and a first stamping column connected with the first base, and the high-pressure water inlet channel penetrates through the first base and the first stamping column; the first punching column is a cylinder and comprises a first punching body, a second punching body and a third punching body which are in stepped distribution, the diameters of the first punching body, the second punching body and the third punching body are sequentially reduced, and the high-pressure water inlet channel penetrates through the first punching body, the second punching body and the third punching body.
5. The brass three-way blank forming process as claimed in claim 1, wherein the core print II comprises a second base and a second stamping column connected with the second base; the second punching column is a cylinder and comprises a fourth punching body, a fifth punching body and a sixth punching body which are distributed in a stepped mode, and the diameters of the fourth punching body, the fifth punching body and the sixth punching body are sequentially reduced.
6. The brass three-way blank forming process, according to claim 1, is characterized in that the die cavities are T-shaped cavities, and comprise a first cavity matched with the core head I, a second cavity matched with the core head II, and a third cavity vertically connecting the first cavity and the second cavity.
7. The brass three-way blank forming process as claimed in claim 1, wherein the core head I is provided with a high-pressure water channel, and in the third step, high-pressure water of 150-250Mpa is introduced into the die cavity.
8. The brass three-way blank forming process according to claim 6, wherein the die comprises an upper die and a lower die, and the upper die and the lower die are matched to form a plurality of die cavities.
9. The brass three-way blank forming process as claimed in claim 1, wherein when the core I and the core II are placed at the first preset position, a space is formed between the ends of the core I and the core II inside the die cavity; when the core print I and the core print II are arranged at the second preset position, the ends of the core print I and the core print II, which are positioned in the die cavity, are mutually contacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210220401.2A CN114669649A (en) | 2022-03-08 | 2022-03-08 | Brass tee joint blank forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210220401.2A CN114669649A (en) | 2022-03-08 | 2022-03-08 | Brass tee joint blank forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114669649A true CN114669649A (en) | 2022-06-28 |
Family
ID=82073041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210220401.2A Pending CN114669649A (en) | 2022-03-08 | 2022-03-08 | Brass tee joint blank forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114669649A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029487A (en) * | 1998-08-24 | 2000-02-29 | Avmat Kydroforming Ltd. | System and method for manufacturing tubular products from tubular workpieces |
| JP2001286943A (en) * | 2000-03-31 | 2001-10-16 | Kawasaki Hydromechanics Corp | End part forming method for tube hydroforming |
| US6578400B1 (en) * | 1998-08-28 | 2003-06-17 | Daimlerchrysler Ag | Internal high pressure forming method for a workpiece |
| JP2006263753A (en) * | 2005-03-22 | 2006-10-05 | Nissan Motor Co Ltd | Hydroforming method and apparatus |
| WO2007003285A1 (en) * | 2005-07-02 | 2007-01-11 | Daimlerchrysler Ag | Method and device for producing a circumferentially closed hollow profile |
| KR20100068543A (en) * | 2008-12-15 | 2010-06-24 | 황정상 | The formming machine for t-typed pipe and the forming method thereof |
| US20110067469A1 (en) * | 2009-09-18 | 2011-03-24 | Nibco Inc. | T-fitting manufacturing method and tool |
| CN104438434A (en) * | 2014-10-20 | 2015-03-25 | 新昌县丰亿电器有限公司 | Technological method for machining Y-shaped tee |
| KR101772966B1 (en) * | 2017-02-02 | 2017-08-30 | (주) 신테크 | Forming apparatus for t-shaped joint and reducing pipe diameter and the forming method thereof |
-
2022
- 2022-03-08 CN CN202210220401.2A patent/CN114669649A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029487A (en) * | 1998-08-24 | 2000-02-29 | Avmat Kydroforming Ltd. | System and method for manufacturing tubular products from tubular workpieces |
| US6578400B1 (en) * | 1998-08-28 | 2003-06-17 | Daimlerchrysler Ag | Internal high pressure forming method for a workpiece |
| JP2001286943A (en) * | 2000-03-31 | 2001-10-16 | Kawasaki Hydromechanics Corp | End part forming method for tube hydroforming |
| JP2006263753A (en) * | 2005-03-22 | 2006-10-05 | Nissan Motor Co Ltd | Hydroforming method and apparatus |
| WO2007003285A1 (en) * | 2005-07-02 | 2007-01-11 | Daimlerchrysler Ag | Method and device for producing a circumferentially closed hollow profile |
| KR20100068543A (en) * | 2008-12-15 | 2010-06-24 | 황정상 | The formming machine for t-typed pipe and the forming method thereof |
| US20110067469A1 (en) * | 2009-09-18 | 2011-03-24 | Nibco Inc. | T-fitting manufacturing method and tool |
| CN104438434A (en) * | 2014-10-20 | 2015-03-25 | 新昌县丰亿电器有限公司 | Technological method for machining Y-shaped tee |
| KR101772966B1 (en) * | 2017-02-02 | 2017-08-30 | (주) 신테크 | Forming apparatus for t-shaped joint and reducing pipe diameter and the forming method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201543720U (en) | Hot-press forming mould of thickness elbow tube fitting | |
| CN201543719U (en) | Hot-press forming mold for thick-wall elbow pipe fitting with straight pipe section | |
| CN101947567A (en) | Processing technique and processing device of flat-head hexagon bolt for cold extrusion shaping cart | |
| CN102773307B (en) | Forming process of parallel three-way connector | |
| CN1963368A (en) | Heating radiator and manufacturing technique method thereof | |
| CN105537415B (en) | Elbow forming blank and pressing forming die thereof | |
| CN201625700U (en) | Hot-press forming device for thick-walled elbows without inner cores | |
| CN114669649A (en) | Brass tee joint blank forming process | |
| CN101767131A (en) | Hot-press molding method for thick-walled elbow without inner core | |
| CN208787314U (en) | A kind of thin-wall long and thin part stamping die | |
| CN212944990U (en) | Special-shaped double-end-face tooth-shaped structure metal sleeve one-time forming device for automobile | |
| CN102773390A (en) | Large outer hexagon bolt blank hot forging and stamping mould | |
| CN214684079U (en) | Mould for high-pressure common rail pipe | |
| CN212703834U (en) | Flattening die for stainless steel water heating bent pin | |
| CN112705580A (en) | Extrusion die of large-scale casing | |
| CN109604497B (en) | Die for manufacturing fluid seal cover for nuclear power voltage stabilizer | |
| CN217251663U (en) | Brass tee joint blank forming die | |
| CN111842597A (en) | Titanium material and special metal pipe orifice extension forming equipment and method | |
| CN206588291U (en) | A kind of EPB clamp forging equipment and its forging blank | |
| KR100492747B1 (en) | Manufacturing method of pipe joint | |
| CN215391652U (en) | Extrusion die of large-scale casing | |
| CN205436809U (en) | Elbow shaping blank and suppression forming die thereof | |
| CN219233679U (en) | Thermos cup integrated into one piece device | |
| CN216911963U (en) | Forming die of female terminal of connector | |
| CN219130650U (en) | Warm forging die with circulating cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |