CN102961836A - CO2 fire-extinguisher cylinder and machining method thereof - Google Patents
CO2 fire-extinguisher cylinder and machining method thereof Download PDFInfo
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- CN102961836A CN102961836A CN2012104762151A CN201210476215A CN102961836A CN 102961836 A CN102961836 A CN 102961836A CN 2012104762151 A CN2012104762151 A CN 2012104762151A CN 201210476215 A CN201210476215 A CN 201210476215A CN 102961836 A CN102961836 A CN 102961836A
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Abstract
The invention discloses a CO2 fire-extinguisher cylinder and a machining method thereof. The CO2 fire-extinguisher cylinder comprises a cylinder body, the bottom of the cylinder body is provided with an inclined blocking section and a diameter-reducing section, the diameter of the inclined blocking section is gradually shrunk, and the diameter of the diameter-reducing section is further shrunk until being closed, the periphery of the diameter-reducing section is sleeved with a bottom ring, and the transition part of the diameter-reducing section and the bottom ring is provided with a plastic-layer sealing ring. The machining method comprises the following steps: carrying out bottom shrinkage and port shrinkage on a seamless steel tube so as to obtain a cylinder body, sleeving a bottom ring on the diameter-reducing section at the bottom of the cylinder body, carrying out plastic spraying treatment on the cylinder body and the bottom ring, placing a CO2 fire-extinguisher cylinder upside down after plastic spraying treatment, uniformly distributing thermosetting plastic powder on the transition part of the diameter-reducing section and the bottom ring through using a vibrating screen, then placing the CO2 fire-extinguisher cylinder upside down and feeding the inverted CO2 fire-extinguisher cylinder into a drying tunnel in a suspended manner to carry out solidification, and finally forming a plastic-layer sealing ring i at the transition part of the diameter-reducing section and the bottom ring after the CO2 fire-extinguisher cylinder is dried in the drying tunnel. According to the invention, the problem that the electrostatic spraying cannot be carried out in place when the transition part of the cylinder body and bottom of the cylinder is subjected to plastic spraying is solved.
Description
Technical field
The present invention relates to CO
2Extinguisher cylinder manufacturing technology field relates in particular to a kind of CO
2Extinguisher cylinder and processing method thereof.
Background technology
CO
2Fire extinguisher be mainly used in putting out a fire to save life and property valuable equipment, archives material, instrument and meter, 600 volts of following electrical equipments and oils from the beginning of fire, be widely used in industry, agricultural, boats and ships, scientific research, medical treatment, health, the fields such as fire-fighting.
For example, application number is that 200620105670.0 Chinese patent literature discloses a kind of Portable light fire-fighting, comprise steel cylinder, small gas cylinder, valve body, be provided with spanner and safeties in the valve body, be provided with the valve stem slides passage and the extinguishing chemical injection channel that interconnect in the valve body, be provided with sealing device between valve rod top and the valve body, the bottom of valve rod is connected with little pricker, the valve rod top cooperates with spanner, the bottom be fixed in valve body on the gas joint that is provided with gas port cooperate, gas joint bottom is socketed on the small gas cylinder bottleneck, is provided with spring in the gas joint.Valve body lower portion and powder absorbing pipe are affixed, and the powder absorbing pipe inwall is provided with the brace rod of placing small gas cylinder, and valve rod is in primary importance, and extinguishing chemical injection channel and powder absorbing pipe are closed, and valve rod is in the second place, and the extinguishing chemical injection channel is communicated with powder absorbing pipe.The powder absorbing pipe bottom offsets with bottom of steel cylinder, and the powder absorbing pipe bottom is provided with bottom plug, leaves between bottom plug and the powder absorbing pipe for CO
2The gap that gas passes through.
CO
2Its die bed structure of fire extinguisher has two large classes, and a class is conventional concave bottom, and another kind of for adding the structure of foundation ring at the bottom of the convex, latter's structure is subjected to external client particularly European client's approval and favor deeply.
Present most of sunken bottom bottle polycrystalline substance as shown in Figure 2, its diagonal cleat section 3 angles are larger, size is shorter, and the mode of interior chamfering or non-chamfering is adopted in the foundation ring 2 that matches, at first can't guarantee closely cooperating between bottom of steel cylinder necking segment 5 and the foundation ring 2, because diagonal cleat section 3 angles are larger, size is shorter, ratio is easier to occur bubble when filling molding powder, affects presentation quality.
Present domestic CO
2Several large enterprises that fire extinguisher is produced, for the frame mode that adds the foundation ring at the bottom of the convex, usually cylindrical shell has hot jacket to cooperate with the two kinds of technology modes of colding pressing with the foundation ring, the spraying coating process of the transition position of foundation ring and cylindrical shell is all realized with the electrostatic plastic spraying of routine, the principle of its electrostatic plastic spraying is that electrostatic generator produces negative high voltage (about 10KV), utilize the corona discharge phenomenon that powdery paints is adsorbed on the metal works, powdery paints borrows compressed air gas to send into spray gun by powder-supply system, be added with the negative high voltage that HV generator produces at the spray gun front end, because corona discharge produces intensive electric charge, when powder is sprayed by the rifle mouth in its vicinity, form charged coating particle, it is subjected to the effect of electrostatic force, is adsorbed to metal works and gets on, and makes powder melts through heating, and natural cooling curing, form hard filming at surface of the work.
But because cylindrical shell and foundation ring transition position are the static blind area, electric charge has carried out short disconnected, can't penetrate, electrostatic force can't obtain showing, cause coating particle can not be adsorbed onto transition region, electrostatic spraying is not in place, and product is through after the air-tight test, and transition region has water stain, be to have increased antirust agent in the air-tight test groove, antirust agent because foundation ring in the use procedure contacts with ground, is subjected to the impact of surrounding environment again because being subjected to the restriction in antirust time limit, namely occurred getting rusty at transition position, corrosion, presentation quality is relatively poor, can not satisfy the high-end customer requirement, and has had a strong impact on the final service life of product.
Summary of the invention
The invention provides a kind of CO
2Extinguisher cylinder and processing method thereof have solved when cylindrical shell and bottom transition region plastic-blasting because cylindrical shell and foundation ring transition position are the static blind area, and electric charge has carried out short disconnected and can't penetrate and cause coating particle can not be adsorbed onto transition region, the problem that electrostatic spraying is not in place.
A kind of CO
2Extinguisher cylinder, comprise bottle, the oblique gear section that shrink gradually with diameter the bottom of this bottle and diameter further shrinks until the undergauge section of sealing has the foundation ring in the outer race of described undergauge section, and the intermediate location of described undergauge section and foundation ring is with moulding a layer sealing ring.
Bottle adopts seamless steel pipe closing in, the receipts end to process, the bottom of bottle outwards convexes to form sunken bottom, the outer sheathed foundation ring of sunken bottom, dwindle to form first one section diagonal cleat section at the base diameter of bottle, diagonal cleat section certain angle that tilts, diagonal cleat section below further diameter reduction forms the bottle bottom at the end, this part is the undergauge section, mould a layer sealing ring in the intermediate location setting that the undergauge section contacts with the foundation ring, make the peripheral close contact of foundation ring and undergauge section, be not easy to get rusty.
As preferably, the angle of inclination of described oblique gear section is 10 ~ 30 degree.
More preferably, the angle of inclination of described oblique gear section is 10 ~ 15 degree.
Most preferably, the angle of inclination of described oblique gear section is 12 degree.
The present invention changes the angle of inclination of diagonal cleat section, make it transform 10 ~ 30 degree as from 45 traditional degree, after the angle of inclination of diagonal cleat section diminishes, the bottle end round and smooth degree of undergauge section of bottom is more smooth, seal with cooperating more of foundation ring, reduce pore and bottom angled, thereby make the steel cylinder concentricity that obtains after the assembling of foundation ring high, the junction gapless.
Cooperating between the undergauge section of bottle end bottom and the foundation ring is tightr, and the perpendicularity of whole steel cylinder is better, good looking appearance behind the plastic-blasting.
The angle of inclination of described diagonal cleat section is in the scope of 10 ~ 30 degree, the angle of inclination is less, so that cooperating between undergauge section and the foundation ring is tightr, molding powder enters when being conducive to spray, reduce the bubble that produces after the baking, therefore, the angle of inclination of diagonal cleat section is preferably 10 ~ 15 degree among the present invention, more preferably 12 degree.
As preferably, the axial length of described oblique gear section and the diameter ratio of bottle are 1 ~ 3:20.
More preferably, the axial length of described oblique gear section and the diameter ratio of bottle are 1:10.
When the angle of inclination that makes described diagonal cleat section diminishes, improve the height of diagonal cleat section, the height of diagonal cleat section is increased, after cooperating between undergauge section and the foundation ring, vacate unnecessary diagonal cleat section, it is no longer tilted, cooperating between undergauge section and the foundation ring is tightr.
The present invention is by reducing the angle of inclination of diagonal cleat section, increase simultaneously the height of diagonal cleat section, when the height that especially reduces to 12 degree, diagonal cleat section when the angle of inclination of diagonal cleat section is increased to its diameter ratio with bottle and is 1 ~ 10, cooperating between undergauge section and the foundation ring is the tightst, fill out mould processing after, undergauge section and foundation ring transition position can not produce pore.
As preferably, the top of described foundation ring outer wall is along with outer chamfering.So that fasten the flat seal of bottom when cooperating.
The present invention also provides a kind of CO as described
2The processing method of extinguisher cylinder comprises: adopt seamless steel pipe to make bottle through the receipts end, closing in step, the plastic-blasting processing is carried out to described bottle and foundation ring in sheathed foundation ring outside the undergauge section of bottle body bottom;
With the CO after the described plastic-blasting processing
2Extinguisher cylinder is inverted, and by vibratory sieve the thermosetting molding powder is evenly distributed on the intermediate location of described bottle and foundation ring, then with CO
2Extinguisher cylinder is inverted to hang to send in the drying tunnel and is cured, and a layer sealing ring moulded in i.e. intermediate location formation in described bottle and foundation ring after the oven dry in drying tunnel.
As preferably, the temperature of described curing is 160 ~ 200 ℃.
As preferably, the time of described curing is 15 ~ 30nin.
Beneficial effect of the present invention:
The mode of chamfering or non-chamfering in the diagonal cleat section angle of traditional steel cylinder bottom large (being generally 45 degree) adopts, can't guarantee closely cooperating between bottom of steel cylinder necking segment and the foundation ring, ratio is easier to occur bubble when filling molding powder, affects presentation quality.
The present invention is by the improvement to the bottle body bottom structure, so that the diagonal cleat size is elongated, angle diminishes, and outer chamfering is done in the foundation ring, so that closely cooperate between bottom of steel cylinder necking down position and the foundation ring, the finished product perpendicularity is good, good looking appearance behind the plastic-blasting.
Traditional spraying coating process adopts electrostatic spraying, and is not in place to the transition region electrostatic spraying of foundation ring and bottle, occurs easily water stainly, affects the quality of steel cylinder.
The steel cylinder bottle that processes of the present invention goes out and the good airproof performance of foundation ring transition region, transition region can not retain any water stain after the air-tight test, transition position can not get rusty, corrode during kiss the earth, and be not subjected to the impact of humid climate and environment, spraying puts in place without the dead angle, and presentation quality is better, when satisfying the high-end customer requirement, has also greatly improved product final service life.
Description of drawings
Fig. 1 is the structural representation of steel cylinder of the present invention.
Fig. 2 is the bottle body bottom structural representation of existing steel cylinder.
Fig. 3 is the bottle body bottom structural representation of this steel cylinder shown in Figure 1.
Fig. 4 is the partial enlarged drawing of the described A part of Fig. 1.
Fig. 5 is the process schematic diagram of moulding layer sealing ring of the present invention.
Reference numeral is as follows shown in the figure:
1-bottle 2-foundation ring 3-diagonal cleat section
The outer chamfering 5-undergauge section 6-of 4-moulds a layer sealing ring
7-thermosetting molding powder 8-hanging basket 9-CO
2Extinguisher cylinder
The 10-conveyer belt.
The specific embodiment
Shown in Fig. 1 ~ 4, a kind of CO
2Extinguisher cylinder, comprise bottle 1, foundation ring 2 and be positioned at foundation ring 2 and bottle 1 transition region mould layer sealing ring 6.
The agent structure of bottle 1 adopts existing bottle, the bottom of bottle 1 is diagonal cleat section 3 and undergauge section 5, diagonal cleat section 3 slopes inwardly, so that diameter dwindles gradually, the angle of inclination of diagonal cleat section 3 is 10 ~ 30 degree, more preferably is 10 ~ 15 degree, in the present embodiment, be arranged to 12 degree, traditional angle of inclination is 45 degree.
The height of diagonal cleat section 3 is 1 ~ 3/20 with the diameter ratio of bottle 1 main part, be set to 1/20 in the present embodiment, diameter such as bottle 1 main body in the present embodiment is 150mm, and the height of the diagonal cleat section 3 in the present embodiment is set to 15mm, and the height of traditional diagonal cleat section 3 is 4mm.
The transition region of foundation ring 2 and 5 combinations of undergauge section has moulds layer sealing ring 6.
After the height of diagonal cleat section 3 increases, make the external series gap between bottle 1 and the foundation ring 2 become large, be conducive to fully entering of molding powder, vacate unnecessary angle after sealing with foundation ring 2, so that it no longer tilts.In order to increase closely cooperating of foundation ring 2 and necking segment 5, the chamfering of foundation ring 2 changes outer chamfering into by original interior chamfering, has reduced the gap of necking segment 5 with foundation ring 2, reduces and fills out the pore that produces when moulding.
CO of the present invention
2The processing method of extinguisher cylinder is as follows:
Adopt seamless steel pipe, the steel cylinder manufacturing process flow is made bottle 1 through closing up, receive end step routinely, adopts the mode of hot jacket to cooperate with foundation ring 2 bottle 1, the steel cylinder manufacturing process flow requires bottle 1 is carried out inside and outside ball blast routinely, and the shoulder reconditioning reaches beats steel seal.
Then with CO
2Extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(of doses of packing in the transition region of foundation ring 2 and undergauge section 5 adjusts dosage according to the product vary in diameter in good time), and with reciprocating sieve that thermosetting molding powder 7 sieves are even, make thermosetting molding powder 7 be uniformly distributed in the transition region every nook and cranny.
Then as shown in Figure 5, with CO
2Extinguisher cylinder 9 is inverted in the hanging basket 8, is sent in the drying tunnel by conveyer belt 10, and thermosetting molding powder 7 is cured, and solidification temperature is 160 ~ 200 ℃; Be 15 ~ 30nin hardening time.
The i.e. formation of transition region between foundation ring 2 and undergauge section 5 one circle is firmly moulded layer sealing ring 6 solidify processing in drying tunnel after.
Adopt seamless steel pipe, the steel cylinder manufacturing process flow is made bottle 1 through closing up, receive end step routinely, adopts the mode of hot jacket to cooperate with foundation ring 2 bottle 1, the steel cylinder manufacturing process flow requires bottle 1 is carried out inside and outside ball blast routinely, and the shoulder reconditioning reaches beats steel seal.
Then with CO
2Extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(of doses of packing in the transition region of foundation ring 2 and undergauge section 5 adjusts dosage according to the product vary in diameter in good time), and with reciprocating sieve that thermosetting molding powder 7 sieves are even, make thermosetting molding powder 7 be uniformly distributed in the transition region every nook and cranny.
Then as shown in Figure 5, with CO
2Extinguisher cylinder 9 is inverted in the hanging basket 8, is sent in the drying tunnel by conveyer belt 10, and thermosetting molding powder 7 is cured, and solidification temperature is 160 ℃; Be 30nin hardening time.
The i.e. formation of transition region between foundation ring 2 and undergauge section 5 one circle is firmly moulded layer sealing ring 6 solidify processing in drying tunnel after.
Adopt seamless steel pipe, the steel cylinder manufacturing process flow is made bottle 1 through closing up, receive end step routinely, adopts the mode of hot jacket to cooperate with foundation ring 2 bottle 1, the steel cylinder manufacturing process flow requires bottle 1 is carried out inside and outside ball blast routinely, and the shoulder reconditioning reaches beats steel seal.
Then with CO
2Extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(of doses of packing in the transition region of foundation ring 2 and undergauge section 5 adjusts dosage according to the product vary in diameter in good time), and with reciprocating sieve that thermosetting molding powder 7 sieves are even, make thermosetting molding powder 7 be uniformly distributed in the transition region every nook and cranny.
Then as shown in Figure 5, with CO
2Extinguisher cylinder 9 is inverted in the hanging basket 8, is sent in the drying tunnel by conveyer belt 10, and thermosetting molding powder 7 is cured, and solidification temperature is 180 ℃; Be 20nin hardening time.
The i.e. formation of transition region between foundation ring 2 and undergauge section 5 one circle is firmly moulded layer sealing ring 6 solidify processing in drying tunnel after.
Adopt seamless steel pipe, the steel cylinder manufacturing process flow is made bottle 1 through closing up, receive end step routinely, adopts the mode of hot jacket to cooperate with foundation ring 2 bottle 1, the steel cylinder manufacturing process flow requires bottle 1 is carried out inside and outside ball blast routinely, and the shoulder reconditioning reaches beats steel seal.
Then with CO
2Extinguisher cylinder 9 is inverted, the thermosetting molding powder 7(of doses of packing in the transition region of foundation ring 2 and undergauge section 5 adjusts dosage according to the product vary in diameter in good time), and with reciprocating sieve that thermosetting molding powder 7 sieves are even, make thermosetting molding powder 7 be uniformly distributed in the transition region every nook and cranny.
Then as shown in Figure 5, with CO
2Extinguisher cylinder 9 is inverted in the hanging basket 8, is sent in the drying tunnel by conveyer belt 10, and thermosetting molding powder 7 is cured, and solidification temperature is 200 ℃; Be 15nin hardening time.
The i.e. formation of transition region between foundation ring 2 and undergauge section 5 one circle is firmly moulded layer sealing ring 6 solidify processing in drying tunnel after.
The above only is better implementation example of the present invention, is not limited to the present invention, and is all within the present invention spirit and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. CO
2Extinguisher cylinder, comprise bottle, the oblique gear section that shrink gradually with diameter the bottom of this bottle and diameter further shrinks until the undergauge section of sealing has the foundation ring in the outer race of described undergauge section, it is characterized in that the intermediate location of described undergauge section and foundation ring is with moulding a layer sealing ring.
2. CO according to claim 1
2Extinguisher cylinder is characterized in that, the angle of inclination of described oblique gear section is 10～30 degree.
3. CO according to claim 2
2Extinguisher cylinder is characterized in that, the angle of inclination of described oblique gear section is 10～15 degree.
4. CO according to claim 3
2Extinguisher cylinder is characterized in that, the angle of inclination of described oblique gear section is 12 degree.
5. CO according to claim 4
2Extinguisher cylinder is characterized in that, the axial length of described oblique gear section and the diameter ratio of bottle are 1～3: 20.
6. CO according to claim 5
2Extinguisher cylinder is characterized in that, the axial length of described oblique gear section and the diameter ratio of bottle are 1: 10.
7. CO according to claim 6
2Extinguisher cylinder is characterized in that, the edge, top of described foundation ring outer wall is with outer chamfering.
8. one kind such as the described CO of the arbitrary claim of claim 1～7
2The processing method of extinguisher cylinder comprises: adopt seamless steel pipe to make bottle through the receipts end, closing in step, the plastic-blasting processing is carried out to described bottle and foundation ring in sheathed foundation ring outside the undergauge section of bottle body bottom;
It is characterized in that the CO after described plastic-blasting is processed
2Extinguisher cylinder is inverted, and by vibratory sieve the thermosetting molding powder is evenly distributed on the intermediate location of described bottle and foundation ring, then with CO
2Extinguisher cylinder is inverted to hang to send in the drying tunnel and is cured, and a layer sealing ring moulded in i.e. intermediate location formation in described bottle and foundation ring after the oven dry in drying tunnel.
9. processing method according to claim 8 is characterized in that, the temperature of described curing is 160～200 ℃.
10. processing method according to claim 8 is characterized in that, the time of described curing is 15～30nin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476215.1A CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476215.1A CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102961836A true CN102961836A (en) | 2013-03-13 |
| CN102961836B CN102961836B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210476215.1A Active CN102961836B (en) | 2012-11-21 | 2012-11-21 | CO2 fire-extinguisher cylinder and machining method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752489A (en) * | 2014-01-16 | 2014-04-30 | 天广消防股份有限公司 | Surface treatment process of portable fire extinguisher |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228174Y (en) * | 1995-09-04 | 1996-05-29 | 北京天海工业有限公司 | Steel seamless gas cylinder with tubular concave bottom |
| CN2463668Y (en) * | 2001-01-08 | 2001-12-05 | 上海青浦消防器材股份有限公司 | Carbon dioxide aluminium bottle for food |
| WO2005089880A1 (en) * | 2004-02-18 | 2005-09-29 | Eurofeu Societe Anonyme | Portable fire-extinguisher |
| CN202516202U (en) * | 2012-05-09 | 2012-11-07 | 宁波能林消防器材有限公司 | Integrally-molded fire extinguisher cylinder |
-
2012
- 2012-11-21 CN CN201210476215.1A patent/CN102961836B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228174Y (en) * | 1995-09-04 | 1996-05-29 | 北京天海工业有限公司 | Steel seamless gas cylinder with tubular concave bottom |
| CN2463668Y (en) * | 2001-01-08 | 2001-12-05 | 上海青浦消防器材股份有限公司 | Carbon dioxide aluminium bottle for food |
| WO2005089880A1 (en) * | 2004-02-18 | 2005-09-29 | Eurofeu Societe Anonyme | Portable fire-extinguisher |
| CN202516202U (en) * | 2012-05-09 | 2012-11-07 | 宁波能林消防器材有限公司 | Integrally-molded fire extinguisher cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752489A (en) * | 2014-01-16 | 2014-04-30 | 天广消防股份有限公司 | Surface treatment process of portable fire extinguisher |
| CN103752489B (en) * | 2014-01-16 | 2016-05-11 | 天广消防股份有限公司 | A kind of process of surface treatment of hand fire extinguisher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102961836B (en) | 2014-12-17 |
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Address after: 312369, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee after: Zhejiang Jindun Fire Equipment Co., Ltd Address before: 312369, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee before: ZHEJIANG JINDUN FIRE-FIGHTING EQUIPMENT CO., LTD. |