CN114130884A - Large-scale forward-inclined tee extrusion forming equipment and forming method - Google Patents

Large-scale forward-inclined tee extrusion forming equipment and forming method Download PDF

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Publication number
CN114130884A
CN114130884A CN202111632161.9A CN202111632161A CN114130884A CN 114130884 A CN114130884 A CN 114130884A CN 202111632161 A CN202111632161 A CN 202111632161A CN 114130884 A CN114130884 A CN 114130884A
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China
Prior art keywords
oil cylinder
tire
side oil
pressure
blank
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Pending
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CN202111632161.9A
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Chinese (zh)
Inventor
孟建涛
赵伟星
赵健涛
张艳艳
霍秀丽
张学良
张宁宁
张军
赵健波
毕国林
李壮
赵彦超
张志飞
高海华
靳菲
李爱青
赵东辉
张真真
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Hebei Focus Piping Co ltd
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Hebei Focus Piping Co ltd
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Priority to CN202111632161.9A priority Critical patent/CN114130884A/en
Publication of CN114130884A publication Critical patent/CN114130884A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses large-scale forward and oblique tee extrusion forming equipment, and belongs to the technical field of tee forming. The large-scale orthorhombic three-way extrusion forming equipment comprises an upper oil cylinder, an upper tire is arranged on the upper oil cylinder, a blank is placed on a lower tire, and a jacking oil cylinder is arranged below the lower tire. A first side oil cylinder and a second side oil cylinder are arranged at two ends of the material blank, a first push head and a second push head which are used for jacking the material blank are respectively arranged on the end heads of the first side oil cylinder and the second side oil cylinder, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank. The invention also discloses a forming method of the large forward-inclined tee extrusion forming equipment. The large forward tee and inclined tee extrusion forming equipment and the forming method can solve the problem that large forward tee and inclined tee are difficult to produce.

Description

Large-scale forward-inclined tee extrusion forming equipment and forming method
Technical Field
The invention relates to the technical field of tee forming, in particular to large-scale forward and oblique tee extrusion forming equipment and a forming method.
Background
The tee joint is also called a pipe fitting tee joint or a tee pipe fitting, a tee joint and the like, is mainly used for changing the direction of fluid and is used at a branch pipe of a main pipeline. The traditional tee joint is generally produced by forging, and the small-sized positive tee joint can also be formed by extrusion. The forging method is adopted to produce the tee joint, and has the defects of low raw material utilization rate, long process time and high energy consumption. And the forging mode can not produce large-scale positive tee and oblique tee. The existing press machine also limits the production and manufacture of large-scale positive tee joints and inclined tee joints.
Disclosure of Invention
The invention aims to provide extrusion forming equipment for a large forward tee and an oblique tee, which solves the problem of difficult production of the large forward tee and the oblique tee. The invention also aims to provide a forming method of the large orthorhombic tee extrusion forming equipment.
In order to achieve the purpose, the invention provides large-scale orthorhombic tee extrusion forming equipment which comprises an upper oil cylinder, an upper tire, a lower tire, a lifting oil cylinder and a lifting oil cylinder, wherein the upper tire is arranged on a telescopic rod of the upper oil cylinder; the two ends of the material blank are respectively provided with a first side oil cylinder and a second side oil cylinder which tightly push and fix the material blank, the end heads of the first side oil cylinder and the second side oil cylinder are respectively provided with a first push head and a second push head which push and press the material blank, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, the water pool is provided with a high-pressure water pump, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank.
Preferably, the motor oil pump comprises a first motor oil pump corresponding to the upper oil cylinder, a second motor oil pump corresponding to the first side oil cylinder, a third motor oil pump corresponding to the second side oil cylinder and a fourth motor oil pump corresponding to the jacking oil cylinder.
Preferably, the system further comprises a master control console, and the master control console is electrically connected with the control valve, the water pump and the motor oil pump.
Preferably, the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press is not lower than 20000 tons; the maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, the effective stroke is 1000mm, and the production of the orthorhombic three-way pipe fitting with the caliber of 200-2000mm and the wall thickness of 10-200mm is met.
The forming method of the large forward inclined tee extrusion forming equipment comprises the following steps:
s1, determining the specifications of the selected upper tire, the lower tire, the first push head and the second push head according to the size of the produced tee joint;
s2, fixedly mounting an upper tire on an upper oil cylinder, fixedly mounting a lower tire on a base, fixedly mounting a first push head on a first side oil cylinder, and fixedly mounting a second push head on a second side oil cylinder;
s3, coating a lubricant on the inner and outer surfaces of the blank, and placing the blank in the lower tire;
s4, under the action of the general control console, as soon as the motor oil pump is started, the upper tire is driven to move downwards by the upper oil cylinder under the control of the control valve, and the upper tire is in sealing contact with the lower tire;
s5, under the action of a master console, a second motor oil pump and a third motor oil pump are started, a first side oil cylinder and a second side oil cylinder are controlled to respectively drive a first push head and a second push head to move in the direction approaching to the blank through a control valve, and the first push head and the second push head respectively seal the end faces of the blank;
s6, starting the high-pressure water pump through the master console, and enabling water in the water tank to enter the water channel through the water inlet and then enter the cavity of the material block;
s7, adjusting the pressure of the upper oil cylinder, the pressure of the first side oil cylinder and the pressure of the second side oil cylinder to 10MPa-30MPa and the pressure of water to 20MPa-100MPa through a master console;
s8, under the action of lateral pressure and high pressure water, the blank flows to the branch pipe along the die cavity in the upper tire and the lower tire to deform, and a three-way prototype is formed;
s9, when the height of the branch pipe meets the set requirement, the pressure of the first side oil cylinder and the second side oil cylinder and the pressure of high-pressure water are removed, the upper tire is driven by the upper oil cylinder to move upwards, and the upper tire is separated from the lower tire;
and S10, jacking the jacking oil cylinder under the action of the master control console, and ejecting the formed tee joint out of the lower tire to complete the manufacture of the tee joint.
Preferably, when the wall thickness of the blank is more than or equal to 25mm and the one-time forming cannot meet the requirement, heating the blank, then cooling to room temperature, and repeating the steps S4-S9.
Preferably, the heated preform is first cooled to below 450 ℃ in the furnace and then taken out of the furnace and air-cooled to room temperature.
The extrusion forming equipment and the extrusion forming method for the large forward inclined tee joint have the advantages and positive effects that:
1. the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press reaches 20000 tons. The maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, and the effective stroke is 1000 mm. Can meet the production of the normal tee and the inclined tee pipe with the caliber of 200 plus 2000mm and the wall thickness of 10-200 mm.
2. The normal and oblique tee joint produced has the advantages of improving the utilization rate of materials to 90 percent, shortening the process time by 30 percent, along with low cost, low energy consumption and high utilization rate of raw materials.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a large forward-inclined tee extrusion molding apparatus and a molding method of the present invention.
Reference numerals
1. An oil tank; 2. a control valve; 3. a first motor oil pump; 4. a motor oil pump II; 5. a motor oil pump III; 6. a motor oil pump IV; 7. feeding an oil cylinder; 8. a first side oil cylinder; 9. a second side oil cylinder; 10. a jacking oil cylinder; 11. discharging the tire; 12. mounting a tire; 13. a material blank; 14. pushing a head I; 15. a second pushing head; 16. a pool; 17. a water inlet; 18. a water channel; 19. and a master control console.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
FIG. 1 is a schematic structural diagram of an embodiment of a large forward-inclined tee extrusion molding apparatus and a molding method of the present invention. As shown in the figure, the large orthorhombic tee extrusion forming equipment comprises an upper oil cylinder 7, and an upper tire 12 is arranged on a telescopic rod of the upper oil cylinder 7. The blank 13 is placed on a lower tire 11 matched with the upper tire 12, and a jacking cylinder 10 facilitating the taking out of the workpiece is arranged below the lower tire 11. Two ends of the blank 13 are respectively provided with a first side oil cylinder 8 and a second side oil cylinder 9 which tightly press and fix the blank 13, the ends of the first side oil cylinder 8 and the second side oil cylinder 9 are respectively provided with a first push head 14 and a second push head 15 which press and fix the blank 13, and the first push head 14 and the second push head 15 are used for sealing and fixing two ends of the blank 13. A water channel 18 is arranged inside the second pushing head 15, the water channel 18 is connected with a water tank 16 through a water inlet 17, and a high-pressure water pump is arranged on the water tank 16. The water outlet of the water channel 18 is opposite to the middle tube cavity of the blank 13. The water in the water tank 16 is sent into the water channel 18 through the water inlet 17 under the action of the high-pressure water pump, and then enters the tube cavity of the blank 13 through the water channel 18 to pressurize and form the blank 13.
The upper oil cylinder 7, the first side oil cylinder 8, the second side oil cylinder 9 and the jacking oil cylinder 10 are all connected with the oil tank 1 through the control valve 2, and the oil tank 1 is provided with a motor oil pump. The motor oil pump comprises a motor oil pump I3 corresponding to the upper oil cylinder 7, a motor oil pump II 4 corresponding to the side oil cylinder I8, a motor oil pump III 5 corresponding to the side oil cylinder II 9 and a motor oil pump IV 6 corresponding to the jacking oil cylinder 10. The upper oil cylinder 7, the first side oil cylinder 8, the second side oil cylinder 9 and the jacking oil cylinder 10 are hydraulic cylinders with existing structures.
The control valve 2, the water pump, the first motor oil pump 3, the second motor oil pump 4, the third motor oil pump 5 and the fourth motor oil pump 6 are all electrically connected with the master console 19 according to the needs by adopting the existing technology, and the operation of the equipment is controlled by the master console 19.
The pressure of the upper oil cylinder 7, the pressure of the first side oil cylinder 8 and the pressure of the second side oil cylinder 9 are not lower than 7000 tons, and the total pressure of the press reaches 20000 tons. The maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, and the effective stroke is 1000 mm; i.e. the maximum opening between the connecting platforms where the upper and lower tires are mounted is 3000 mm. Can meet the production of the normal tee and the inclined tee pipe with the caliber of 200 plus 2000mm and the wall thickness of 10-200 mm.
The forming method of the large forward inclined tee extrusion forming equipment comprises the following steps:
and S1, determining the specifications of the selected upper tire 12, the selected lower tire 11, the selected first push head 14 and the selected second push head 15 according to the size of the produced tee joint.
S2, fixedly mounting the upper tire 12 on the upper oil cylinder 7, fixedly mounting the lower tire 11 on the base, fixedly mounting the first push head 14 on the first side oil cylinder 8, and fixedly mounting the second push head 15 on the second side oil cylinder 9.
S3, applying a lubricant to the inner and outer surfaces of the green sheet 13, and placing the green sheet 13 inside the lower tire 11. The lubricant is lead powder, the main raw material of the lead powder is graphite, and the lead powder has a good lubricating effect and lubricates the blank 13.
S4, under the action of the master console 19, the motor oil pump I3 is started, the upper oil cylinder 7 is controlled through the control valve 2 to drive the upper tire 12 to move downwards, the upper tire 12 is in sealing contact with the lower tire 11, and the blank 13 is clamped between the upper tire 12 and the lower tire 11. The upper tire 12 and the lower tire 11 are provided with a cavity for molding a workpiece.
S5, under the action of the master console 19, the motor oil pump II 4 and the motor oil pump III 5 are started simultaneously, the control valve 2 controls the side oil cylinder I8 and the side oil cylinder II 9 to respectively drive the push head I14 and the push head II 15 to move towards the direction close to the material blank 13, and the push head I14 and the push head II 15 respectively seal the end face of the material blank 13. The first pushing head 14 and the second pushing head 15 seal the blank 13, so that a sealed cavity is formed inside the blank 13, and the blank 13 flows and deforms under the action of water pressure to be molded in the cavity.
S6, the high-pressure water pump is started through the console 19, and water in the water pool 16 enters the water channel 18 through the water inlet 17 and then enters the cavity of the blank 13.
S7, adjusting the pressure of the upper oil cylinder 7, the first side oil cylinder 8 and the second side oil cylinder 9 to 10MPa-30MPa and the pressure of water to 20MPa-100MPa through the master control console 19.
And S8, under the action of the lateral pressure and the pressure of high-pressure water, the blank 13 flows to the branch pipe along the die cavity in the upper tire 12 and the lower tire 11 to deform, and a three-way prototype is formed.
And S9, when the height of the branch pipe meets the set requirement, the pressure of the first side oil cylinder 8 and the second side oil cylinder 9 and the pressure of high-pressure water are removed, the upper oil cylinder 7 drives the upper tire 12 to move upwards, and the upper tire 12 is separated from the lower tire 11.
S10, jacking the jacking oil cylinder 10 under the action of the master console 19, and jacking the formed tee joint out of the lower tire 11 to complete the manufacture of the tee joint. The tee joint can be trimmed and shaped by a cutting machine subsequently.
And when the wall thickness of the blank 13 is more than or equal to 25mm and the one-time forming can not meet the requirement, heating the blank 13, then cooling to the room temperature, and repeating the steps S4-S9. The heating temperature is set according to different material of the blank 13, and the heating aims to eliminate the internal stress generated during the machining of the blank 13, reduce the work hardening of the blank 13 and improve the deformability of the blank 13. The heated preform 13 is first cooled to below 450 ℃ in the furnace and then taken out of the furnace and air-cooled to room temperature.
Examples
The forming method will be described in detail by taking an example of cold extrusion of an equal-diameter tee with a diameter of 610mm 9.53 mm.
The steel pipe is made of No. 20 steel pipe manufactured by GB/T8163 standard. The preform 13 had a gauge of phi 610mm by 12mm and a length of 1400 mm.
The forming method of the orthorhombic tee extrusion forming equipment comprises the following steps of:
and S1, determining the specifications of the selected upper tire 12, the selected lower tire 11, the selected first push head 14 and the selected second push head 15 according to the size of the produced tee joint.
S2, fixedly mounting the upper tire 12 on the upper oil cylinder 7, fixedly mounting the lower tire 11 on the base, fixedly mounting the first push head 14 on the first side oil cylinder 8, and fixedly mounting the second push head 15 on the second side oil cylinder 9.
S3, applying lead powder on the inner and outer surfaces of the green sheet 13, and placing the green sheet 13 inside the lower tire 11.
S4, under the action of the master console 19, the motor oil pump I3 is started, the upper oil cylinder 7 is controlled through the control valve 2 to drive the upper tire 12 to move downwards, and the upper tire 12 is in sealing contact with the lower tire 11.
S5, under the action of the master console 19, the motor oil pump II 4 and the motor oil pump III 5 are started simultaneously, the control valve 2 controls the side oil cylinder I8 and the side oil cylinder II 9 to respectively drive the push head I14 and the push head II 15 to move towards the direction close to the material blank 13, and the push head I14 and the push head II 15 respectively seal the end face of the material blank 13.
S6, the high-pressure water pump is started through the console 19, and water in the water pool 16 enters the water channel 18 through the water inlet 17 and then enters the cavity of the blank 13.
S7, adjusting the pressure of the upper oil cylinder 7, the first side oil cylinder 8 and the second side oil cylinder 9 to 10MPa-30MPa and the pressure of water to 20MPa-100MPa through the master control console 19.
And S8, under the action of the lateral pressure and the pressure of high-pressure water, the blank 13 flows to the branch pipe along the die cavity in the upper tire 12 and the lower tire 11 to deform, and a three-way prototype is formed.
And S9, when the height of the branch pipe meets the set requirement, the requirements of GB/T12459-2017 and GB/T13401-2017 are met, the pressure of the first side oil cylinder 8 and the second side oil cylinder 9 and the pressure of high-pressure water are removed, the upper oil cylinder 7 drives the upper tire 12 to move upwards, and the upper tire 12 is separated from the lower tire 11.
S10, jacking the jacking oil cylinder 10 under the action of the master console 19, and jacking the formed tee joint out of the lower tire 11 to complete the manufacture of the tee joint. The tee joint can be trimmed and shaped by a cutting machine subsequently.
And when the wall thickness of the blank 13 is more than or equal to 25mm and the one-step forming cannot meet the requirement, heating the blank 13, firstly cooling the heated blank 13 to below 450 ℃ along with the furnace, discharging from the furnace, cooling to room temperature, and repeating the steps S4-S9 until the height of the branch pipe of the three-way pipe meets the requirement.
Therefore, the large forward tee and oblique tee extrusion forming equipment and the forming method can solve the problem that large forward tee and oblique tee are difficult to produce.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a large-scale just oblique tee bend extrusion equipment which characterized in that: the device comprises an upper oil cylinder, an upper tire is arranged on a telescopic rod of the upper oil cylinder, a material blank is placed on a lower tire matched with the upper tire, and a jacking oil cylinder convenient for taking out a workpiece is arranged below the lower tire; the two ends of the material blank are respectively provided with a first side oil cylinder and a second side oil cylinder which tightly push and fix the material blank, the end heads of the first side oil cylinder and the second side oil cylinder are respectively provided with a first push head and a second push head which push and press the material blank, a water channel is arranged inside the second push head, the water channel is connected with a water pool through a water inlet, the water pool is provided with a high-pressure water pump, and a water outlet of the water channel is over against a middle pipe cavity of the material blank; the upper oil cylinder, the side oil cylinder I, the side oil cylinder II and the jacking oil cylinder are all connected with an oil tank through control valves, and a motor oil pump is arranged on the oil tank.
2. The large-scale orthorhombic tee extrusion forming equipment as claimed in claim 1, wherein: the motor oil pump comprises a first motor oil pump corresponding to the upper oil cylinder, a second motor oil pump corresponding to the side oil cylinder, a third motor oil pump corresponding to the side oil cylinder and a fourth motor oil pump corresponding to the jacking oil cylinder.
3. The large-scale orthorhombic tee extrusion forming equipment as claimed in claim 1, wherein: the system also comprises a master control console, and the master control console is electrically connected with the control valve, the water pump and the motor oil pump.
4. The large-scale orthorhombic tee extrusion forming equipment as claimed in claim 1, wherein: the pressure of the upper oil cylinder, the pressure of the side oil cylinder I and the pressure of the side oil cylinder II are not lower than 7000 tons, and the total pressure of the press is not lower than 20000 tons; the maximum opening between the upper oil cylinder and the jacking oil cylinder connecting platform is 3000mm, the effective stroke is 1000mm, and the production of the orthorhombic three-way pipe fitting with the caliber of 200-2000mm and the wall thickness of 10-200mm is met.
5. The forming method of the large orthorhombic tee extrusion forming equipment according to any one of claims 1 to 4, characterized by comprising the following steps of:
s1, determining the specifications of the selected upper tire, the lower tire, the first push head and the second push head according to the size of the produced tee joint;
s2, fixedly mounting an upper tire on an upper oil cylinder, fixedly mounting a lower tire on a base, fixedly mounting a first push head on a first side oil cylinder, and fixedly mounting a second push head on a second side oil cylinder;
s3, coating a lubricant on the inner and outer surfaces of the blank, and placing the blank in the lower tire;
s4, under the action of the general control console, as soon as the motor oil pump is started, the upper tire is driven to move downwards by the upper oil cylinder under the control of the control valve, and the upper tire is in sealing contact with the lower tire;
s5, under the action of a master console, a second motor oil pump and a third motor oil pump are started, a first side oil cylinder and a second side oil cylinder are controlled to respectively drive a first push head and a second push head to move in the direction approaching to the blank through a control valve, and the first push head and the second push head respectively seal the end faces of the blank;
s6, starting the high-pressure water pump through the master console, and enabling water in the water tank to enter the water channel through the water inlet and then enter the cavity of the material block;
s7, adjusting the pressure of the upper oil cylinder, the pressure of the first side oil cylinder and the pressure of the second side oil cylinder to 10MPa-30MPa and the pressure of water to 20MPa-100MPa through a master console;
s8, under the action of lateral pressure and high pressure water, the blank flows to the branch pipe along the die cavity in the upper tire and the lower tire to deform, and a three-way prototype is formed;
s9, when the height of the branch pipe meets the set requirement, the pressure of the first side oil cylinder and the second side oil cylinder and the pressure of high-pressure water are removed, the upper tire is driven by the upper oil cylinder to move upwards, and the upper tire is separated from the lower tire;
and S10, jacking the jacking oil cylinder under the action of the master control console, and ejecting the formed tee joint out of the lower tire to complete the manufacture of the tee joint.
6. The forming method of the large orthorhombic tee extrusion forming equipment according to claim 5, wherein the forming method comprises the following steps: and when the wall thickness of the blank is more than or equal to 25mm and the one-step molding can not meet the requirement, heating the blank, cooling to room temperature, and repeating the steps S4-S9.
7. The forming method of the large orthorhombic tee extrusion forming equipment according to claim 6, characterized in that: the heated blank is firstly cooled to below 450 ℃ along with the furnace, taken out of the furnace and cooled to room temperature.
CN202111632161.9A 2021-12-29 2021-12-29 Large-scale forward-inclined tee extrusion forming equipment and forming method Pending CN114130884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111632161.9A CN114130884A (en) 2021-12-29 2021-12-29 Large-scale forward-inclined tee extrusion forming equipment and forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111632161.9A CN114130884A (en) 2021-12-29 2021-12-29 Large-scale forward-inclined tee extrusion forming equipment and forming method

Publications (1)

Publication Number Publication Date
CN114130884A true CN114130884A (en) 2022-03-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111632161.9A Pending CN114130884A (en) 2021-12-29 2021-12-29 Large-scale forward-inclined tee extrusion forming equipment and forming method

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CN (1) CN114130884A (en)

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