CN106624636A - Thread extrusion process - Google Patents
Thread extrusion process Download PDFInfo
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- CN106624636A CN106624636A CN201611124669.7A CN201611124669A CN106624636A CN 106624636 A CN106624636 A CN 106624636A CN 201611124669 A CN201611124669 A CN 201611124669A CN 106624636 A CN106624636 A CN 106624636A
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- screw thread
- extrusion process
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- annealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a thread extrusion process. The thread extrusion process includes the steps of firstly, selecting materials; secondly, inspecting; thirdly, cutting the materials; fourthly, making blank; fifthly, annealing; sixthly, deburring and lubricating; seventhly, performing extrusion forming; eighthly, performing rough machining; ninthly, performing finish machine to obtain a finished product. A thread obtained by the thread extrusion process meets related national standards.
Description
Technical field
The present invention relates to a kind of metal processing sectors, specifically a kind of screw thread extrusion process.
Background technology
Modern extrusion technique extrudes system lead in the French revolution epoch from 18 end of the centurys, Frenchman from aperture
Into bullet, extruding is started.In France, someone starts with punching machine within 1830, and using backward extrusion method lead is manufactured
Pipe and tin-tube.The extrusion technique of China is developed in the seventies, and China is once in the product of the batch productions such as bicycle, car electrics
In, extruding production Technology was promoted, the extrusion molding of starter receiver has also been succeeded in developing, and put into batch production.But by
In fundamentally not solving technique, equipment, material, mould, lubrication, the original size of automation equipment and blank material, original
The series of technical such as state, post processing, thus do not obtain large development.The eighties, with household electrical appliances and automobile and motorcycle work
Industry is developed rapidly, introduction, digestion to extrusion process equipment and production technology, is absorbed, and scientific research personnel is attacked by production practices
At the same time equipment of cold forging there has also been large development to many difficult problems of gram extrusion technique.Now extrusion manufacturing technology has had
Very big development, but with regard to how to ensure that extrusion die uses long-life aspect, we have also needed to more exploration and practices.
The content of the invention
It is an object of the invention to provide a kind of screw thread extrusion process, the technique can reduce the input cost of material, together
When the technique can improve the manufacturing speed of screw thread, reduce manufacture difficulty.
For achieving the above object, the present invention provides following technical scheme：
A kind of screw thread extrusion process, comprises the following steps：
（1）Sorting：The ferrochrome that thickness is chosen for 3mm-5mm is used as material；
（2）Inspection：Material is tested according to standard, and selects suitable qualified material, at the same reach bright and clean, flawless,
Without residue, the requirement without rusty stain；
（3）Cut out material：Material placement hydraulic press is carried out by die cut according to the demand of setting；
（4）Base：Material after die cut is carried out into base；
（5）Annealing：The material obtained after base is put into vacuum intermediate-frequency heating furnace and is annealed, annealing temperature control exists
450 DEG C -547 DEG C, annealing time is 50min-60min；
（6）Deburring and lubrication：The burr for carrying out material surface using flash trimmer is removed, and keeps the roughness of material surface low
In 0.5, the roughness of the end side surface of material two is less than 0.2, and process is subsequently lubricated to material surface；
（7）Extrusion molding：Material after lubrication is placed in mould, Full-automatic numerical control machine tool squeezing parameter is set, pressure is
618MPa-732MPa, carries out extrusion molding；
（8）Roughing：Material fixed and cutting on sawing machine to extrusion molding, and phospholeum process is carried out, stay the essence of 0.1mm
Allowance；
（9）Finishing：First using ultrasonic wave alkali cleaning is carried out to the material after roughing, electroplated after alkali cleaning, subsequently gone
Burr process；
（10）Finished product：Screw thread after deburring is polished, adds protection oil immersion molten after polishing, obtained final product.
As further scheme of the invention：The ratio of chromium and iron is 0.3 in the ferrochrome:1.1.
As further scheme of the invention：Step（5）Middle annealing temperature is controlled at 500 DEG C, and annealing time is 55min.
As further scheme of the invention：The electroplating technique is：Material after alkali cleaning is put into copper-contained electroplating liquid
It is middle as negative electrode, be 3.9A/dm in cathode-current density2, temperature is plating 35 minutes under conditions of 22 DEG C, by material after plating
Take out, successively Jing adverse currents are washed, go out light, adverse current is washed, and passivation, adverse current is washed, closing, low temperature drying, you can.
Compared with prior art, the invention has the beneficial effects as follows：
Production technology of the present invention has advantages below：1st, technological process is simple, and product quality is stable, with short production cycle；2nd, produce
Operation is few, greatly reduces production cost；3rd, the weight of product reduces 4%, substantially increases the utilization rate of raw material；4th, Jing
Screw thread resistance to compression after extrusion process is up to more than 150MPa.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of screw thread extrusion process, comprises the following steps：
（1）Sorting：The ferrochrome that thickness is chosen for 3mm is used as material；
（2）Inspection：Material is tested according to standard, and selects suitable qualified material, at the same reach bright and clean, flawless,
Without residue, the requirement without rusty stain；
（3）Cut out material：Material placement hydraulic press is carried out by die cut according to the demand of setting；
（4）Base：Material after die cut is carried out into base；
（5）Annealing：The material obtained after base is put into vacuum intermediate-frequency heating furnace and is annealed, annealing temperature control exists
450 DEG C, annealing time is 50min；
（6）Deburring and lubrication：The burr for carrying out material surface using flash trimmer is removed, and keeps the roughness of material surface low
In 0.5, the roughness of the end side surface of material two is less than 0.2, and process is subsequently lubricated to material surface；
（7）Extrusion molding：Material after lubrication is placed in mould, Full-automatic numerical control machine tool squeezing parameter is set, pressure is
618MPa, carries out extrusion molding；
（8）Roughing：Material fixed and cutting on sawing machine to extrusion molding, and phospholeum process is carried out, stay the essence of 0.1mm
Allowance；
（9）Finishing：First using ultrasonic wave alkali cleaning is carried out to the material after roughing, electroplated after alkali cleaning, subsequently gone
Burr process；
（10）Finished product：Screw thread after deburring is polished, adds protection oil immersion molten after polishing, obtained final product.
Wherein：
The ratio of chromium and iron is 0.3 in the ferrochrome:1.1.
The electroplating technique is：Material after alkali cleaning is put into as negative electrode in copper-contained electroplating liquid, it is close in cathode current
Spend for 3.9A/dm2, temperature be 22 DEG C under conditions of electroplate 35 minutes, material is taken out after plating, successively Jing adverse current wash, go out
Light, adverse current is washed, and passivation, adverse current is washed, closing, low temperature drying, you can.
Embodiment 2
A kind of screw thread extrusion process, comprises the following steps：
（1）Sorting：The ferrochrome that thickness is chosen for 4mm is used as material；
（2）Inspection：Material is tested according to standard, and selects suitable qualified material, at the same reach bright and clean, flawless,
Without residue, the requirement without rusty stain；
（3）Cut out material：Material placement hydraulic press is carried out by die cut according to the demand of setting；
（4）Base：Material after die cut is carried out into base；
（5）Annealing：The material obtained after base is put into vacuum intermediate-frequency heating furnace and is annealed, annealing temperature control exists
500 DEG C, annealing time is 55min；
（6）Deburring and lubrication：The burr for carrying out material surface using flash trimmer is removed, and keeps the roughness of material surface low
In 0.5, the roughness of the end side surface of material two is less than 0.2, and process is subsequently lubricated to material surface；
（7）Extrusion molding：Material after lubrication is placed in mould, Full-automatic numerical control machine tool squeezing parameter is set, pressure is
700MPa, carries out extrusion molding；
（8）Roughing：Material fixed and cutting on sawing machine to extrusion molding, and phospholeum process is carried out, stay the essence of 0.1mm
Allowance；
（9）Finishing：First using ultrasonic wave alkali cleaning is carried out to the material after roughing, electroplated after alkali cleaning, subsequently gone
Burr process；
（10）Finished product：Screw thread after deburring is polished, adds protection oil immersion molten after polishing, obtained final product.
Wherein：
The ratio of chromium and iron is 0.3 in the ferrochrome:1.1.
The electroplating technique is：Material after alkali cleaning is put into as negative electrode in copper-contained electroplating liquid, it is close in cathode current
Spend for 3.9A/dm2, temperature be 22 DEG C under conditions of electroplate 35 minutes, material is taken out after plating, successively Jing adverse current wash, go out
Light, adverse current is washed, and passivation, adverse current is washed, closing, low temperature drying, you can.
Embodiment 3
A kind of screw thread extrusion process, comprises the following steps：
（1）Sorting：The ferrochrome that thickness is chosen for 5mm is used as material；
（2）Inspection：Material is tested according to standard, and selects suitable qualified material, at the same reach bright and clean, flawless,
Without residue, the requirement without rusty stain；
（3）Cut out material：Material placement hydraulic press is carried out by die cut according to the demand of setting；
（4）Base：Material after die cut is carried out into base；
（5）Annealing：The material obtained after base is put into vacuum intermediate-frequency heating furnace and is annealed, annealing temperature control exists
547 DEG C, annealing time is 60min；
（6）Deburring and lubrication：The burr for carrying out material surface using flash trimmer is removed, and keeps the roughness of material surface low
In 0.5, the roughness of the end side surface of material two is less than 0.2, and process is subsequently lubricated to material surface；
（7）Extrusion molding：Material after lubrication is placed in mould, Full-automatic numerical control machine tool squeezing parameter is set, pressure is
732MPa, carries out extrusion molding；
（8）Roughing：Material fixed and cutting on sawing machine to extrusion molding, and phospholeum process is carried out, stay the essence of 0.1mm
Allowance；
（9）Finishing：First using ultrasonic wave alkali cleaning is carried out to the material after roughing, electroplated after alkali cleaning, subsequently gone
Burr process；
（10）Finished product：Screw thread after deburring is polished, adds protection oil immersion molten after polishing, obtained final product.
Wherein：
The ratio of chromium and iron is 0.3 in the ferrochrome:1.1.
The electroplating technique is：Material after alkali cleaning is put into as negative electrode in copper-contained electroplating liquid, it is close in cathode current
Spend for 3.9A/dm2, temperature be 22 DEG C under conditions of electroplate 35 minutes, material is taken out after plating, successively Jing adverse current wash, go out
Light, adverse current is washed, and passivation, adverse current is washed, closing, low temperature drying, you can.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity those skilled in the art should
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (4)
1. a kind of screw thread extrusion process, it is characterised in that comprise the following steps：
（1）Sorting：The ferrochrome that thickness is chosen for 3mm-5mm is used as material；
（2）Inspection：Material is tested according to standard, and selects suitable qualified material, at the same reach bright and clean, flawless,
Without residue, the requirement without rusty stain；
（3）Cut out material：Material placement hydraulic press is carried out by die cut according to the demand of setting；
（4）Base：Material after die cut is carried out into base；
（5）Annealing：The material obtained after base is put into vacuum intermediate-frequency heating furnace and is annealed, annealing temperature control exists
450 DEG C -547 DEG C, annealing time is 50min-60min；
（6）Deburring and lubrication：The burr for carrying out material surface using flash trimmer is removed, and keeps the roughness of material surface low
In 0.5, the roughness of the end side surface of material two is less than 0.2, and process is subsequently lubricated to material surface；
（7）Extrusion molding：Material after lubrication is placed in mould, Full-automatic numerical control machine tool squeezing parameter is set, pressure is
618MPa-732MPa, carries out extrusion molding；
（8）Roughing：Material fixed and cutting on sawing machine to extrusion molding, and phospholeum process is carried out, stay the essence of 0.1mm
Allowance；
（9）Finishing：First using ultrasonic wave alkali cleaning is carried out to the material after roughing, electroplated after alkali cleaning, subsequently gone
Burr process；
（10）Finished product：Screw thread after deburring is polished, adds protection oil immersion molten after polishing, obtained final product.
2. screw thread extrusion process according to claim 1, it is characterised in that the ratio of chromium and iron is in the ferrochrome
0.3:1.1。
3. screw thread extrusion process according to claim 1 and 2, it is characterised in that step（5）Middle annealing temperature control exists
500 DEG C, annealing time is 55min.
4. screw thread extrusion process according to claim 3, it is characterised in that the electroplating technique is：After alkali cleaning
Material is put into copper-contained electroplating liquid as negative electrode, is 3.9A/dm in cathode-current density2, temperature is plating under conditions of 22 DEG C
35 minutes, material is taken out after plating, successively Jing adverse currents are washed, go out light, adverse current is washed, and passivation, adverse current is washed, closing, low temperature
It is dried, you can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124669.7A CN106624636A (en) | 2016-12-08 | 2016-12-08 | Thread extrusion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124669.7A CN106624636A (en) | 2016-12-08 | 2016-12-08 | Thread extrusion process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106624636A true CN106624636A (en) | 2017-05-10 |
Family
ID=58825290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611124669.7A Pending CN106624636A (en) | 2016-12-08 | 2016-12-08 | Thread extrusion process |
Country Status (1)
| Country | Link |
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| CN (1) | CN106624636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740806A (en) * | 2017-11-09 | 2018-02-27 | 东莞市佳铠精密金属制品有限公司 | A kind of screw and its production technology |
| CN114713653A (en) * | 2022-03-24 | 2022-07-08 | 上海工程技术大学 | Machining method and forming die assembly for long rod part with threaded teeth for vehicle |
-
2016
- 2016-12-08 CN CN201611124669.7A patent/CN106624636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740806A (en) * | 2017-11-09 | 2018-02-27 | 东莞市佳铠精密金属制品有限公司 | A kind of screw and its production technology |
| CN114713653A (en) * | 2022-03-24 | 2022-07-08 | 上海工程技术大学 | Machining method and forming die assembly for long rod part with threaded teeth for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |