CN104384284B - Drawing production process of CNG encircled gas bottle liner - Google Patents
Drawing production process of CNG encircled gas bottle liner Download PDFInfo
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- CN104384284B CN104384284B CN201410457934.8A CN201410457934A CN104384284B CN 104384284 B CN104384284 B CN 104384284B CN 201410457934 A CN201410457934 A CN 201410457934A CN 104384284 B CN104384284 B CN 104384284B
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Classifications
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
- B21D41/045—Closing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
Abstract
The invention discloses a drawing production process of a CNG encircled gas bottle liner. The process is characterized by comprising the following steps: (1) blanking: the size of a blank is measured according to the size of the CNG encircled gas bottle liner; and then, the blank is cut to a circular plate with a target size by a cutter; (2) annealing: the blank in the last step is put in an annealing device for annealing; (3) the surface treatment; (4) drawing production: three times of cold drawing are performed by a large-tonnage press; and the annealing process and the surface treatment process are used for processing the drawn blank between the first drawing and the second drawing and between the second drawing and the third drawing; and (5) spinning closing: a spinning wheel type spinning machine is adopted to perform the heating closing treatment for the drawn part. The drawing production process of the CNG encircled gas bottle liner, provided by the invention, largely improves the product consistency and the quality stability, and enables the product quality to become better compared with a steel pipe forming process.
Description
Technical field
The present invention relates to CNG rings twine gas cylinder processing technique field, more particularly to CNG rings twine cylinder liner drawing manufacture work
Skill.
Background technology
As a kind of clean energy resource, natural gas is widely used, and CNG automobile is capturing the increasing market share.
Economy, safety and installing space in view of automobile, standard specifies the weight of gas cylinder no more than the 5% of complete vehicle weight,
So the volume to weight ratio of gas cylinder（Volume and weight ratio）It is an important parameter for embodying gas cylinder performance.
The moulding process that at present CNG rings twine gas cylinder main flow is by hot spinning receipts bottom, after closing up with hot rolling or cold drawing steel tube
Molding.Limited by the technique of hot rolling and cold drawing steel tube, the thickest deviation of hot-rolled pipe is 22.5%, the wall thickness deviation of drawn tube
For 17%, in order to the minimum wall thickness (MINI W.) for ensureing gas cylinder is not less than design wall thickness, the average wall thickness of gas cylinder for wall thickness deviation intermediate value,
Therefore steel cylinder total quality is larger.
On the other hand, if temperature control is bad when hot spinning receives bottom in high volume production process occurs that bottom is not melted
Close, it is exactly bottom gas leakage to be reflected in CNG rings and twine on gas cylinder, is that gas cylinder safely hides some dangers for.
The content of the invention
It is an object of the invention to provide a kind of CNG rings twine cylinder liner drawing manufacturing process.
The purpose of the present invention can be achieved through the following technical solutions：
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment；
（3）Surface treatment；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station.
Further, the step（2）And step（4）In, during annealing, stock heating-up temperature is 810 ± 10 DEG C, is dropped with stove
Temperature, 24 ~ 30min of time.
Further, the step（3）And step（4）In, surface treatment is entered by pickling, three steps of phosphatization and saponification
OK.
Further, in the acid pickling step, adopt mass percent for 10 ~ 20% sulfuric acid solution, corrosion inhibiter quality is dense
0.2～0.4g/L of degree, 50 ~ 70 DEG C of solution temperature, 15 ~ 30min of pickling time.
Further, the phosphorus is washed in step, and using Zinc phosphating solution, total acidity 25～40 is dripped, and free acidity 1～4 is dripped,
65～80 DEG C of phosphatization temperature, 30～45min of phosphating time.
Further, in the saponification step, using fatty acid saponification liquid, the g/L of mass concentration 70～120, free alkali<
0.4%, 40～50 DEG C of temperature, 10～15min of time.
Further, the step（4）In, deep drawing speed is 100 ~ 130mm/min.
Further, the step（5）In, drawing part adopts heating in medium frequency, 1170 ± 20 DEG C of temperature.
The invention has the beneficial effects as follows：
1）Steel plate rolling precision can reach 3%, using steel plate by deep-drawing technique process CNG rings twine cylinder liner can be with
10% inner bag weight is at least reduced, volume to weight ratio is substantially increased；
2）Bottom is received relative to traditional hot spinning, the inner bag bottom of deep-drawing technique production is drawing and forming, maintains steel plate
Original state, the probability of gas leakage has thus been prevented completely；
3）The CNG rings produced by steel plate deep-drawing technique twine cylinder liner because evenness of wall thickness is relatively good, and raw material
Surface defect easily find and reconditioning in time, substantially increase the concordance of product and the stability of quality, make product quality
Step a stage than steel pipe forming technique.
Description of the drawings
Fig. 1 is the process chart of the present invention.
Specific embodiment
In order that the advantage of the purpose of the present invention and technical scheme becomes more apparent, it is right below in conjunction with accompanying drawing and example
The present invention is further elaborated.
Embodiment one
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment, during annealing, stock heating
Temperature is 800 DEG C, is lowered the temperature with stove, time 24min；
（3）Surface treatment：Surface treatment is carried out by pickling, three steps of phosphatization and saponification.In the acid pickling step, adopt
Mass percent is 10% sulfuric acid solution, corrosion inhibiter mass concentration 0.2g/L, 50 DEG C of solution temperature, pickling time 30min；Institute
State phosphorus to wash in step, using Zinc phosphating solution, total acidity 25 is dripped, and free acidity 1 is dripped, 65 DEG C of phosphatization temperature, phosphating time
45min；In the saponification step, using fatty acid saponification liquid, mass concentration 70g/L, free alkali<0.4%, 40 DEG C of temperature, the time
15min；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；Deep drawing speed is 100mm/min, and workpiece surfaces externally and internally is gone through after drawing, occurs drawing
Wound response clears up immediately mould；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station, is drawn
Deep part adopts heating in medium frequency, 1150 DEG C of temperature.
Embodiment two：
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment, during annealing, stock heating
Temperature is 820 DEG C, is lowered the temperature with stove, time 30min；
（3）Surface treatment：Surface treatment is carried out by pickling, three steps of phosphatization and saponification.In the acid pickling step, adopt
Mass percent is 20% sulfuric acid solution, corrosion inhibiter mass concentration 0.4g/L, 70 DEG C of solution temperature, pickling time 15；The phosphorus
In washing step, using Zinc phosphating solution, total acidity 40 is dripped, and free acidity 4 is dripped, 80 DEG C of phosphatization temperature, phosphating time 30min；Institute
In stating saponification step, using fatty acid saponification liquid, mass concentration 120g/L, free alkali<0.4%, temperature 50 C, time 10min；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；Deep drawing speed is 130mm/min, and workpiece surfaces externally and internally is gone through after drawing, occurs drawing
Wound response clears up immediately mould；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station, is drawn
Deep part adopts heating in medium frequency, 1190 DEG C of temperature.
Embodiment three：
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment, during annealing, stock heating
Temperature is 800 DEG C, is lowered the temperature with stove, time 24min；
（3）Surface treatment：Surface treatment is carried out by pickling, three steps of phosphatization and saponification.In the acid pickling step, adopt
Mass percent is 10% sulfuric acid solution, corrosion inhibiter mass concentration 0.2g/L, 50 DEG C of solution temperature, pickling time 30min；Institute
State phosphorus to wash in step, using Zinc phosphating solution, total acidity 25 is dripped, and free acidity 1 is dripped, 65 DEG C of phosphatization temperature, phosphating time
45min；In the saponification step, using casting lubricant, concentration 1.26BN, free alkalinity 05Pt, temperature 50 C, time
8min；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；Deep drawing speed is 100mm/min, and workpiece surfaces externally and internally is gone through after drawing, occurs drawing
Wound response clears up immediately mould；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station, is drawn
Deep part adopts heating in medium frequency, 1150 DEG C of temperature.
Example IV：
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment, during annealing, stock heating
Temperature is 800 DEG C, is lowered the temperature with stove, time 24min；
（3）Surface treatment：Surface treatment is carried out by pickling, three steps of phosphatization and saponification.In the acid pickling step, adopt
Mass percent is 10% sulfuric acid solution, corrosion inhibiter mass concentration 0.2g/L, 50 DEG C of solution temperature, pickling time 30min；Institute
State phosphorus to wash in step, using Zinc phosphating solution, total acidity 25 is dripped, and free acidity 1 is dripped, 65 DEG C of phosphatization temperature, phosphating time
45min；In the saponification step, can also be using casting lubricant, concentration 2.6BN, free alkalinity 1.5Pt, temperature 70 C, time
3min；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；Deep drawing speed is 100mm/min, and workpiece surfaces externally and internally is gone through after drawing, occurs drawing
Wound response clears up immediately mould；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station, is drawn
Deep part adopts heating in medium frequency, 1150 DEG C of temperature.
Embodiment five：
CNG rings twine cylinder liner drawing manufacturing process, comprise the steps of：
（1）Blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, then using cutting machine by embryo
Material cuts into the plectane of target size；
（2）Annealing：Stock in previous step is placed in annealing device and is made annealing treatment, during annealing, stock heating
Temperature is 810 DEG C, is lowered the temperature with stove, time 28min；
（3）Surface treatment：Surface treatment is carried out by pickling, three steps of phosphatization and saponification.In the acid pickling step, adopt
Mass percent is 15% sulfuric acid solution, corrosion inhibiter mass concentration 0.3g/L, 60 DEG C of solution temperature, pickling time 25min；Institute
State phosphorus to wash in step, using Zinc phosphating solution, total acidity 32 is dripped, and free acidity 2 is dripped, 72 DEG C of phosphatization temperature, phosphating time
37min；In the saponification step, using fatty acid saponification liquid, mass concentration 95g/L, free alkali<0.4%, temperature 45 C, the time
12min；
（4）Drawing manufacture processing：Three cold drawing and formings are carried out using large tonnage pressing machine, first time drawing and second
Above-mentioned annealing process and process of surface treatment are adopted between drawing sequence and between second drawing and third time drawing sequence
Stock after drawing is processed；Deep drawing speed is 115mm/min, and workpiece surfaces externally and internally is gone through after drawing, occurs drawing
Wound response clears up immediately mould；
（5）Spinning closing-in process：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station, is drawn
Deep part adopts heating in medium frequency, 1170 DEG C of temperature.
Using the manufacturing process of the present invention, with following obvious effect：
1）Steel plate rolling precision can reach 3%, using steel plate by deep-drawing technique process CNG rings twine cylinder liner can be with
10% inner bag weight is at least reduced, volume to weight ratio is substantially increased；
2）Bottom is received relative to traditional hot spinning, the inner bag bottom of deep-drawing technique production is drawing and forming, maintains steel plate
Original state, the probability of gas leakage has thus been prevented completely；
3）The CNG rings produced by steel plate deep-drawing technique twine cylinder liner because evenness of wall thickness is relatively good, and raw material
Surface defect easily find and timely reconditioning, substantially increase the concordance of product and the stability of quality, make product quality
Step a stage than steel pipe forming technique.
Claims (3)
1.CNG rings twine cylinder liner drawing manufacturing process, it is characterised in that comprise the steps of：
(1) blanking：The size for twining cylinder liner according to CNG rings calculates the size of stock, is then cut stock using cutting machine
It is cut into the plectane of target size；
(2) anneal：Stock in previous step is placed in annealing device and is made annealing treatment；
(3) it is surface-treated；
(4) drawing manufacture processing：Three cold drawing and formings, first time drawing and second drawing are carried out using large tonnage pressing machine
Above-mentioned annealing process and process of surface treatment are adopted between operation and between second drawing and third time drawing sequence to drawing
Stock after depth is processed；
(5) spinning closing-in is processed：Heating shell nosing treatment is carried out to drawing part using rotary wheel type spinning machine closing in work station；
In the step (2) and step (4), during annealing, stock heating-up temperature is 810 ± 10 DEG C, is lowered the temperature with stove, the time 24～
30min；
In the step (3) and step (4), surface treatment is carried out by pickling, three steps of phosphatization and saponification；The acid pickling step
In, adopt mass percent for 10～20% sulfuric acid solution, corrosion inhibiter 0.2～0.4g/L of mass concentration, solution temperature 50～
70 DEG C, 15～30min of pickling time；In the phosphating step, using Zinc phosphating solution, total acidity 25～40 is dripped, free acidity 1
～4 drops, 65～80 DEG C of phosphatization temperature, 30～45min of phosphating time；
In the saponification step, using fatty acid saponification liquid, 70～120g/L of mass concentration, free alkali<0.4%, temperature 40～
50 DEG C, 10～15min of time.
2. CNG rings according to claim 1 twine cylinder liner drawing manufacturing process, it is characterised in that：
In the step (4), deep drawing speed is 100～130mm/min.
3. CNG rings according to claim 1 twine cylinder liner drawing manufacturing process, it is characterised in that：
In the step (5), drawing part adopts heating in medium frequency, 1170 ± 20 DEG C of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457934.8A CN104384284B (en) | 2014-09-11 | 2014-09-11 | Drawing production process of CNG encircled gas bottle liner |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201410457934.8A CN104384284B (en) | 2014-09-11 | 2014-09-11 | Drawing production process of CNG encircled gas bottle liner |
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| CN104384284A CN104384284A (en) | 2015-03-04 |
| CN104384284B true CN104384284B (en) | 2017-05-10 |
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| CN105149408A (en) * | 2015-09-28 | 2015-12-16 | 中材科技(成都)有限公司 | Titanium steel cylinder deep drawing technology |
| CN105081043A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology of 430 material steel cylinder |
| CN105127324A (en) * | 2015-09-28 | 2015-12-09 | 中材科技(成都)有限公司 | Anti-corrosion hot drawing process of steel bottles |
| CN105081707A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Hot drawing technology for 410# steel cylinders |
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| CN105081708A (en) * | 2015-09-28 | 2015-11-25 | 中材科技(成都)有限公司 | Drawing technology of 430 material steel cylinder |
| CN105171352A (en) * | 2015-09-28 | 2015-12-23 | 中材科技(成都)有限公司 | Anti-corrosion steel cylinder drawing process |
| CN105107920A (en) * | 2015-09-28 | 2015-12-02 | 中材科技(成都)有限公司 | Drawing technology for steel cylinder |
| CN105171353A (en) * | 2015-09-28 | 2015-12-23 | 中材科技(成都)有限公司 | Steel cylinder thermal drawing process |
| CN105108463A (en) * | 2015-09-28 | 2015-12-02 | 中材科技(成都)有限公司 | Titanium steel cylinder hot drawing process |
| CN107745230A (en) * | 2017-09-30 | 2018-03-02 | 安徽绿动能源有限公司 | A kind of CNG cylinder liners calendering technology |
| CN110125612A (en) * | 2018-02-09 | 2019-08-16 | 青岛海尔智能技术研发有限公司 | The processing technology and water heater liner and water heater of a kind of seamless inner container for water heater |
| CN110594576A (en) * | 2019-09-25 | 2019-12-20 | 中材科技(成都)有限公司 | Processing method of fully-wound gas storage cylinder |
| CN110640042A (en) * | 2019-09-25 | 2020-01-03 | 中材科技(成都)有限公司 | Gas storage cylinder processing method |
| CN111843397A (en) * | 2020-08-06 | 2020-10-30 | 温州深拉防爆设备有限公司 | Natural gas cylinder liner formed by stretching process |
| CN112427562B (en) * | 2020-11-02 | 2023-09-26 | 中材科技(成都)有限公司 | Horizontal cold drawing equipment and cold drawing method for steel liner of pressure vessel |
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| CN1346729A (en) * | 2001-10-12 | 2002-05-01 | 徐国南 | Process for making gas cylinder of fireworks |
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| CN104384284A (en) | 2015-03-04 |
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