CN109821922A - A kind of manufacturing process of screw wire rod - Google Patents
A kind of manufacturing process of screw wire rod Download PDFInfo
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- CN109821922A CN109821922A CN201910123655.0A CN201910123655A CN109821922A CN 109821922 A CN109821922 A CN 109821922A CN 201910123655 A CN201910123655 A CN 201910123655A CN 109821922 A CN109821922 A CN 109821922A
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Abstract
The present invention relates to a kind of manufacturing process of screw wire rod, it in turn includes the following steps: A: pickling: the coil holder for installing wire rod wire rod being hung in and carries out pickling in the slot equipped with pickling solution；B: cleaning: the wire rod wire rod after step A is rinsed, which is first hung in the slot equipped with neutralizer, to be cleaned；C: the wire rod wire rod after step B cleaning phosphatization: is hung in into phosphatization in the slot equipped with phosphating solution；D: saponification: the wire rod wire rod of step C hangs in lower saponification in the slot equipped with saponification liquor after water rinses；E: wire drawing: the wire rod wire rod in step D after saponification is fed through wire drawing machine and carries out drawing process formation screw wire rod.The present invention is superior in quality, and brightness is good, has stronger lubricity, corrosion resistance, and cold heading performance and fatigue resistance are high.
Description
Technical field
The present invention relates to a kind of manufacturing process of screw wire rod, belong to screw wire rod processing technique field.
Background technique
Currently, the technological process of production of screw wire rod be the rough drawing of wire rod → pretreatment → middle silk heat treatment line →
Middle silk drawing → annealing → inspection → packaging factory.
For example, the patent of invention that patent application publication number is CN102861782B discloses a kind of drawer sliding rail and its manufacture
Method, the manufacturing process of steel wire rod in a kind of metallurgical technology field, and in particular to a kind of manufacturing process of screw wire rod, technique
It in turn includes the following steps: the coil holder for installing wire rod wire rod is hung in the slot equipped with pickling solution；By the wire rod line after flushing
Material is hung in the slot equipped with neutralizer；Then it hangs in the slot equipped with hot lime；Scheduled semi-finished product specification is obtained after drawing
Screw wire rod；Screw wire rod after drawing is placed in the heat treatment furnace, spheroidizing is carried out under methanol atmosphere protection；Weight
Multiple first step acid pickling step；Screw wire rod after pickling is hung in the slot equipped with phosphating solution；It hangs in after water rinses equipped with soap
In the slot for changing liquid；The steel wire of scheduled trimmed size is obtained after drawing.
The processing technology of another kind screw wire rod set forth below.
Summary of the invention
The present invention is superior in quality in view of the deficienciess of the prior art, provide a kind of manufacturing process of screw wire rod, bright
It spends, there is stronger lubricity, corrosion resistance, cold heading performance and fatigue resistance are high.
The technical scheme to solve the above technical problems is that a kind of manufacturing process of screw wire rod, it is characterised in that: it
It in turn includes the following steps: A: pickling: the coil holder for installing wire rod wire rod being hung in the slot equipped with pickling solution, pickling solution is heated to
Pickling 5-15min under the conditions of 50 DEG C -60 DEG C；B: cleaning: the wire rod wire rod after step A is rinsed first hangs in the slot equipped with neutralizer
In, 1-3min is neutralized under room temperature；Wire rod wire rod is first hung in the slot equipped with clear water liquid again, cleans 1min under room temperature；C: phosphatization:
Wire rod wire rod after step B cleaning is hung in the slot equipped with phosphating solution, phosphatization 8-12min at a temperature of 75-85 DEG C；D: saponification:
The wire rod wire rod of step C is hung in after water rinses in the slot equipped with saponification liquor, and 3-7min is saponified at a temperature of 75-80 DEG C；E: wire drawing:
Wire rod wire rod in step D after saponification is fed through wire drawing machine and carries out drawing process formation screw wire rod；F: heat is made: will walk
Screw wire rod in rapid E is placed in the heat treatment furnace, 500-600 DEG C of the environment temperature progress spheroidizing under methanol atmosphere protection
Processing, obtains to be put into the screw wire rod that screw is fabricated in multifunctional nut molding machine, then carries out bending and adds
Work thread；G: cold forging: the screw wire rod in step E is placed on progress cold forging processing in cold forging machine, then carries out threading processing.
The present invention is further, and in the step B, by weight percentage, neutralizer is made of following raw material: quick lime
8-12%, soap powder 0.8-1.2%, surplus are water.
The present invention is further, and the saponification liquor includes: soap powder 5-10% and water, and the pH of saponification liquor is controlled in 8.5-10.
The present invention is further, and the saponification liquor further includes odium stearate, in percentage, the soap powder and stearic acid
The sum of sodium is 9:1 than the ratio of water.
The present invention is further, and the quick lime 10%, soap powder 1.0%, surplus is water.
The present invention is further, and in the step F, by weight percentage, phosphating solution is made of following raw material: di(2-ethylhexyl)phosphate
Hydrogen zinc 25-40%, zinc nitrate 40-50%, water 20-30%.
The present invention is further, and the pickling solution in the step A is made of following raw material by weight percentage: salt
Acid, hexamethylenetetramine, Boratex and excess water.
The present invention is further, in the step F, spheroidizing specifically comprises the processes of: under methanol atmosphere protection, 5-7h
Time in the temperature in furnace risen to 600-580 DEG C, and keep the temperature 5-7h；Control cooling velocity is 15-10 DEG C/h, will be in furnace
Temperature slowly cools to 515-500 DEG C；Bell is opened, control cooling velocity is 75-85 DEG C/h, by the rapid cooling of in-furnace temperature
To 280-350 DEG C；It comes out of the stove, air is cooled to room temperature.
In conclusion compared with prior art, the present invention has the advantage that mainly removing wire rod by acid pickling step
The oxidation film of wire surface, and under conditions of pickling 5-15min under the conditions of pickling solution is heated to 50 DEG C -60 DEG C, it can reach
The effect of optimal cleaning oxidation film；With the pickling solution of wire rod wire rod in cleaning step, the hydrochloric acid of wire surface is washed
Corrosion products；Phosphating step is the surface property in order to improve wire rod, and the phosphating coat of formation is by a series of of different sizes
Crystal is formed, and will will form the porous of fine cracks on the tie point of crystal, the phosphating solution that the present invention uses is by following original
Material composition: zinc dihydrogen phosphate 25-40%, zinc nitrate 40-50%, water 20-30% are capable of forming fine and close phosphating coat；And due to phosphoric acid
The coefficient of friction of salt epithelium be not it is very low, sufficient lubricity when processing cannot be assigned, thus invention use saponification liquor packet
Include: the pH of soap powder 5-10% and water, saponification liquor is controlled in 8.5-10.Furthermore saponification liquor further includes odium stearate, the soap powder
It than the ratio of water is 9:1 with the sum of odium stearate, under this ratio, lubricant effect reaches best.
It is of the invention under methanol atmosphere protection, the temperature in furnace is risen to 600-580 DEG C in the time of 5-7h, and keep the temperature 5-
7h；Control cooling velocity is 15-10 DEG C/h, and the temperature in furnace is slowly cooled to 515-500 DEG C；Open bell, control cooling
Speed is 75-85 DEG C/h, and in-furnace temperature is quickly cooled to 280-350 DEG C；It comes out of the stove, air is cooled to room temperature, is mainly
It can satisfy the two ways processing of step F and step G.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1, a kind of manufacturing process of screw wire rod, it in turn includes the following steps: A: pickling: will install wire rod line
The coil holder of material is hung in the slot equipped with pickling solution, pickling 5-15min under the conditions of pickling solution is heated to 50 DEG C -60 DEG C, wherein pickling
Liquid is made of following raw material by weight percentage: hydrochloric acid, hexamethylenetetramine, Boratex and excess water；B: it cleaning: will walk
Wire rod wire rod after rapid A is rinsed first is hung in the slot equipped with neutralizer, 1-3min is neutralized under room temperature, wherein neutralizer is by following original
Material composition: quick lime 8-12%, soap powder 0.8-1.2%, surplus are water, most preferably quick lime 10%, soap powder 1.0%, and surplus is
Water；Wire rod wire rod is first hung in the slot equipped with clear water liquid again, cleans 1min under room temperature；C: phosphatization: by the disk after step B cleaning
Wire rod is hung in the slot equipped with phosphating solution, phosphatization 8-12min at a temperature of 75-85 DEG C；Wherein by weight percentage, phosphating solution
It is made of following raw material: zinc dihydrogen phosphate 25-40%, zinc nitrate 40-50%, water 20-30%；D: saponification: the wire rod wire rod of step C
It is hung in after water rinses in the slot equipped with saponification liquor, 3-7min is saponified at a temperature of 75-80 DEG C, wherein saponification liquor includes: soap powder
The pH of 5-10% and water, saponification liquor is controlled in 8.5-10；E: the wire rod wire rod in step D after saponification wire drawing: is fed through drawing
Silk machine carries out drawing process and forms screw wire rod；F: heat is made: the screw wire rod in step E is placed in the heat treatment furnace, in first
500-600 DEG C of environment temperature progress spheroidizing processing under alcohol atmosphere protection, specially spheroidizing specifically comprises the processes of: in first
Under alcohol atmosphere protection, the temperature in furnace is risen to 600-580 DEG C in the time of 5-7h, and keep the temperature 5-7h；Controlling cooling velocity is
15-10 DEG C/h, the temperature in furnace is slowly cooled to 515-500 DEG C；Bell is opened, control cooling velocity is 75-85 DEG C/h, will
In-furnace temperature is quickly cooled to 280-350 DEG C；It comes out of the stove, air is cooled to room temperature；Obtain being put into multifunctional nut at
The screw wire rod of screw is fabricated in type machine, then carries out bending and processes thread；G: cold forging: by the screw line in step E
Material, which is placed in cold forging machine, carries out cold forging processing, then carries out threading processing.
Embodiment 2, a kind of manufacturing process of screw wire rod, compared with Example 1, saponification liquor further includes odium stearate, with
Percentages, the sum of soap powder and odium stearate are 9:1 than the ratio of water.
Comparative example 1, a kind of manufacturing process of screw wire rod, compared with Example 2, saponification liquor further includes glycerol, with percentage
Than meter, the sum of soap powder and glycerol are 9:1 than the ratio of water.
Comparative example 2, a kind of manufacturing process of screw wire rod, compared with Example 1, phosphating solution are zinc dihydrogen phosphate and water
20-30%。
Embodiment 3, a kind of manufacturing process of screw wire rod, compared with Example 1, phosphating solution are zinc dihydrogen phosphate 30%, nitre
Sour zinc 45%, water 25%；Control Zn content 22%, phosphatase 24 0% and nitric acid 38%.
Embodiment 4, a kind of manufacturing process of screw wire rod, compared with Example 1, phosphating solution are zinc dihydrogen phosphate 30%, nitre
Sour zinc 45%, water 25%；Control Zn content 10%, phosphoric acid 80% and nitric acid 10%.
Performance characterization, the intensity for testing nut material, strength grade are that embodiment 1 is that 8.8, embodiment 2 is respectively
9.8, embodiment 3 is 9.8, embodiment 4 is 9.8, comparative example 1 is 6.8, comparative example 2 is 4.8, comparative example 3 is 6.8.
The present invention is by acid pickling step, the main oxidation film for removing wire rod wire surface, and pickling solution be heated to 50 DEG C-
Under the conditions of 60 DEG C under conditions of pickling 5-15min, it can achieve the effect that optimal cleaning oxidation film；In in cleaning step and
The pickling solution of wire rod wire rod washes the hydrochloric acid corrosion resistance product of wire surface；Phosphating step is the surface in order to improve wire rod
The phosphating coat of performance, formation is made of a series of crystal of different sizes, will will form on the tie point of crystal tiny
Crackle it is porous, the phosphating solution that the present invention uses is made of following raw material: zinc dihydrogen phosphate 25-40%, zinc nitrate 40-50%, water
20-30% is capable of forming fine and close phosphating coat；And due to the coefficient of friction of phosphate coating be not it is very low, processing cannot be assigned
When sufficient lubricity.So invention includes: soap powder 5-10% and water using saponification liquor, the pH of saponification liquor is controlled in 8.5-
10.Furthermore saponification liquor further includes odium stearate, and the sum of the soap powder and odium stearate are 9:1 than the ratio of water, in this ratio
Under, lubricant effect reaches best.It is of the invention under methanol atmosphere protection, the temperature in furnace is risen into 600- in the time of 5-7h
580 DEG C, and keep the temperature 5-7h；Control cooling velocity is 15-10 DEG C/h, and the temperature in furnace is slowly cooled to 515-500 DEG C；It opens
Bell, control cooling velocity are 75-85 DEG C/h, and in-furnace temperature is quickly cooled to 280-350 DEG C；It comes out of the stove, air is cooled to
Room temperature, primarily to can satisfy the two ways processing of step F and step G.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of manufacturing process of screw wire rod, it is characterised in that: it in turn includes the following steps:
A: pickling: the coil holder for installing wire rod wire rod is hung in the slot equipped with pickling solution, and pickling solution is heated to 50 DEG C of -60 DEG C of conditions
Lower pickling 5-15min；
B: cleaning: the wire rod wire rod after step A is rinsed first is hung in the slot equipped with neutralizer, neutralizes 1-3min under room temperature；Again
Wire rod wire rod is first hung in the slot equipped with clear water liquid, cleans 1min under room temperature；
C: phosphatization: the wire rod wire rod after step B cleaning is hung in the slot equipped with phosphating solution, phosphatization 8- at a temperature of 75-85 DEG C
12min；
D: saponification: the wire rod wire rod of step C is hung in after water rinses in the slot equipped with saponification liquor, and 3- is saponified at a temperature of 75-80 DEG C
7min；
E: wire drawing: the wire rod wire rod in step D after saponification is fed through wire drawing machine and carries out drawing process formation screw wire rod；
F: heat is made: the screw wire rod in step E being placed in the heat treatment furnace, the environment temperature 500- under methanol atmosphere protection
600 DEG C of progress spheroidizing processing obtain to be put into the screw wire rod that screw is fabricated in multifunctional nut molding machine,
Then it carries out bending and processes thread；
G: cold forging: the screw wire rod in step E is placed on progress cold forging processing in cold forging machine, then carries out threading processing.
2. the manufacturing process of screw wire rod according to claim 1, which is characterized in that in the step B, with weight percent
Than meter, neutralizer is made of following raw material: quick lime 8-12%, soap powder 0.8-1.2%, surplus are water.
3. the manufacturing process of screw wire rod according to claim 1, which is characterized in that the saponification liquor includes: soap powder
The pH of 5-10% and water, saponification liquor is controlled in 8.5-10.
4. the manufacturing process of screw wire rod according to claim 3, which is characterized in that the saponification liquor further includes stearic acid
Sodium, in percentage, the sum of the soap powder and odium stearate are 9:1 than the ratio of water.
5. the manufacturing process of screw wire rod according to claim 4, which is characterized in that the quick lime 10%, soap powder
1.0%, surplus is water.
6. the manufacturing process of screw wire rod according to claim 5, which is characterized in that in the step F, with weight percent
Than meter, phosphating solution is made of following raw material: zinc dihydrogen phosphate 25-40%, zinc nitrate 40-50%, water 20-30%.
7. the manufacturing process of screw wire rod according to claim 6, which is characterized in that the pickling solution in the step A, with
Weight percent meter, is made of following raw material: hydrochloric acid, hexamethylenetetramine, Boratex and excess water.
8. the manufacturing process of screw wire rod according to claim 7, which is characterized in that in the step F, spheroidizing
Specifically comprises the processes of: under methanol atmosphere protection, the temperature in furnace is risen to 600-580 DEG C in the time of 5-7h, and keep the temperature 5-7h；
Control cooling velocity is 15-10 DEG C/h, and the temperature in furnace is slowly cooled to 515-500 DEG C；Bell is opened, cooling velocity is controlled
For 75-85 DEG C/h, in-furnace temperature is quickly cooled to 280-350 DEG C；It comes out of the stove, air is cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123655.0A CN109821922A (en) | 2019-02-19 | 2019-02-19 | A kind of manufacturing process of screw wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123655.0A CN109821922A (en) | 2019-02-19 | 2019-02-19 | A kind of manufacturing process of screw wire rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109821922A true CN109821922A (en) | 2019-05-31 |
Family
ID=66862228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910123655.0A Pending CN109821922A (en) | 2019-02-19 | 2019-02-19 | A kind of manufacturing process of screw wire rod |
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| Country | Link |
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| CN (1) | CN109821922A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238231A (en) * | 2019-06-11 | 2019-09-17 | 常熟市标准件厂有限公司 | A kind of material reforming technology of high-strength bolt |
| WO2021217951A1 (en) * | 2020-04-30 | 2021-11-04 | 苏州强新合金材料科技有限公司 | Lime wire drawing process for steel wires |
| CN113649426A (en) * | 2021-08-16 | 2021-11-16 | 舟山市7412工厂 | Environment-friendly and energy-saving wire drawing method for stainless steel bolt |
| CN114318310A (en) * | 2021-12-13 | 2022-04-12 | 中国建筑第二工程局有限公司 | Preparation method of nuclear power saponified steel belt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238231A (en) * | 2019-06-11 | 2019-09-17 | 常熟市标准件厂有限公司 | A kind of material reforming technology of high-strength bolt |
| WO2021217951A1 (en) * | 2020-04-30 | 2021-11-04 | 苏州强新合金材料科技有限公司 | Lime wire drawing process for steel wires |
| CN113649426A (en) * | 2021-08-16 | 2021-11-16 | 舟山市7412工厂 | Environment-friendly and energy-saving wire drawing method for stainless steel bolt |
| CN114318310A (en) * | 2021-12-13 | 2022-04-12 | 中国建筑第二工程局有限公司 | Preparation method of nuclear power saponified steel belt |
| CN114318310B (en) * | 2021-12-13 | 2024-03-12 | 中国建筑第二工程局有限公司 | Preparation method of nuclear power saponification steel belt |
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Application publication date: 20190531 |