CN103217202B - Manufacturing method of teflon sintered floating ball - Google Patents
Manufacturing method of teflon sintered floating ball Download PDFInfo
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- CN103217202B CN103217202B CN201310099936.XA CN201310099936A CN103217202B CN 103217202 B CN103217202 B CN 103217202B CN 201310099936 A CN201310099936 A CN 201310099936A CN 103217202 B CN103217202 B CN 103217202B
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- sintering
- ball float
- tetrafluoro
- teflon
- floating ball
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Abstract
The invention provides a manufacturing method of a teflon sintered floating ball. The manufacturing method comprises the following five steps: manufacturing a stainless steel floating ball; winding a teflon belt on the floating ball; sintering the floating ball wound with the teflon belt; processing the sintered floating ball; and inspecting. Therefore, the teflon sintered floating ball is strong in resistance to chemical attack, good in stability, capable of preventing instruments from being eroded by corrosive media, good in resistance to compression and long service life, can be used for alleviating the labor intensity and well combining teflon with stainless steel, and is especially suitable for the liquid level measurement, control and monitoring in the fields of petroleum, chemical engineering, water treatment, environment conservation, pharmacy, electric power, papermaking, metallurgy and the like.
Description
Technical field:
The present invention relates to a kind of fluid level measuring device method for making, particularly be used for joining a method for making for the tetrafluoro sintering ball float can measuring the processing mediums such as any kind, the acid of any concentration, alkali and strong oxidizer, go for various industrial automation process control in level gauging and control.
Background technology:
At present, the floating ball lever meter ball float that China's level gauging industry adopts mostly adopts metal species stainless steel, ABS, PE and other engineering plastic materials to process, under its metal species stainless steel is used in strong acid and strong base environment, will soon be corroded, be done for, so as ABS, PE and other engineering plastics higher than under the media environment of 90 degree, then can be out of shape and be corroded.
Teflon English name is Polytetrafluoro ethylene, be called for short PTFE or F4, be polymerized obtained by tetrafluoroethylene monomer (TFE), it has strong corrosion resistant, heat-resisting quantity, there is good thermal stability, and not by oxygen, ozone, action of ultraviolet light, not easily aging, even if under being in 260 DEG C of hot environments for a long time, all there is not substantial change in its mechanical property and chemical property, if but simple teflon makes ball float, although, its rotproofness solves, but, its compressive resistance is the highest only has 0.6Mpa, its compressive resistance is inadequate in use, do not reach and be greater than 0.6Mpa environment for use, and its compressive resistance that substantially increases used in combination between it and stainless steel, can reach 2.0Mpa, but, be difficult between teflon and stainless steel combine, because have not viscosity between teflon and stainless steel, so, now a kind of technology is not also had well to combine between teflon and stainless steel.
Summary of the invention:
Object of the present invention is exactly will provide the strong resistance to chemical attack of a kind of energy, good stability, protective meter by the method for making of Korrosionsmedium burn into compressive resistance not good, long service life, the ball float that reduces labor intensity, the tetrafluoro that teflon is combined with stainless steel very well can be sintered.
The object of the present invention is achieved like this: a kind of method for making of tetrafluoro sintering ball float, is characterized in that it comprises the following steps:
1), stainless steel floating ball is made: adopt 304 stainless steels, be processed into external diameter
two semicircles and
stainless-steel tube one, stainless-steel tube outer side center part has the high temperature resistant magnet steel of ferrite, and its heatproof can reach 400 °, is welded by stainless-steel tube, be 304 ball floats with two hermetic modes of semicircle;
2), Teflon tap is wound around: first glass fiber tape is wrapped in 304 ball float surfaces compactly and fixes, the thickness that glass fiber tape is wound around is 26-32mm, secondly, delivery is fastening, mould is inserted tightly the center pit of stainless steel floating ball, justify align, then, the shape of " 8 " word is adopted to be wound around with Teflon tap, the winding of one laminating layer, all wraps up stainless ball float, finally successively, adopt the method being wound around Teflon tap that tetrafluoro is all wrapped again with glass fiber tape, fix and can not come off;
3), sintering is wound around the ball float of Teflon tap: by tetrafluoro sinter box blow-on preheating, after furnace temperature reaches 40 °, the ball float winding Teflon tap is put into tetrafluoro sinter box and carries out three-stage sintering, temperature adjusting in sinter box is 100 ° by first paragraph, sintering 50-80 minute, temperature adjusting in sinter box is 260 ° by second segment, sintering 100-140 minute, temperature adjusting in sinter box is 380 ° by the 3rd section, sintering 160---200 minutes, take stage intensification way, make tetrafluoro reach perfect sintering;
4), processing sintering ball float: stop heating by tetrafluoro sinter box, the temperature in tetrafluoro sinter box is made automatically to be cooled to less than 50 °, ball float after sintering is taken out, peel off outer field glass fiber tape again, extract the mould be placed on inside ball float endoporus, ball float on lathe, after two ends are withstood, ball float is cut into smooth in appearance, the finished product of endoporus even thickness;
5), inspection: use electric spark detector to detect, it is qualified that voltage 0.5KV detects without leak source.
What making stainless steel floating ball of the present invention adopted is welded as argon arc welding welding, polishes smooth after having welded.
Mould of the present invention adopts CS carbon steel bar to process, and has two panels external diameter 27mm, the semicircle stainless steel of length 160mm hollow, long 8mm, wide 6mm, length 160mm square steel rod one, cylindrical plug two composition, square steel rod outer end connects semicircle stainless steel, two ends connecting cylinder shape plug.
Glass fiber tape of the present invention adopts wide 20mm, the glass fiber tape of thickness 1mm.
The present invention compared with prior art has the following advantages:
Make stainless steel floating ball owing to have employed, be wound around Teflon tap, sinter the ball float of winding Teflon tap, processing sintering ball float, check five step method for makings, thus:
1, sintered on stainless steel floating ball, utilized the strong chemical resistance of teflon just, stability, play protective meter not by the effect of Korrosionsmedium corrosion, and antiseptic effect is splendid; Can be used to join the liquid level gauge measuring the processing mediums such as any kind, the acid of any concentration, alkali and strong oxidizer like this;
2, utilize 304 stainless steels to do support, its compressive resistance strengthens greatly;
3, the high temperature resistant magnet steel of inner employing ferrite, substantially increases the sublimity temperature of its work especially;
4, substantially solve in current chemical industry level gauging and frequently change ball float, a difficult problem for acid-base medium cannot be measured;
5, use this ball float to measure liquid level and can reach more than 5 years serviceable life.
Accompanying drawing illustrates:
Figure: be mould concrete structure schematic diagram of the present invention
1, semicircle stainless steel 2, square steel rod 3, cylindrical plug
Embodiment:
It comprises the following steps:
1), stainless steel floating ball is made: adopt 304 stainless steels, be processed into external diameter
two semicircles and
stainless-steel tube one, stainless-steel tube outer side center part has the high temperature resistant magnet steel of the ferrite of 42*4*6, and its heatproof can reach 400 °, stainless-steel tube is welded with two hermetic modes of semicircle, be welded as argon arc welding welding, polish smooth after having welded, be 304 ball floats;
2), be wound around Teflon tap: first glass fiber tape is wrapped in 304 ball float surfaces compactly and fixes, glass fabric adopts wide 20mm, the glass fabric of thickness 1mm, the thickness that glass fiber tape is wound around is 26-32mm, secondly, delivery is fastening, mould is inserted tightly the center pit of stainless steel floating ball, justify align, mould adopts CS carbon steel bar to process, there is two panels external diameter 27mm, the semicircle stainless steel 1 of length 160mm hollow, long 8mm, wide 6mm, length 160mm square steel rod 2 one, cylindrical plug 3 two composition, square steel rod 2 outer end connects semicircle stainless steel 1, two ends connecting cylinder shape plug 3, then, the shape of " 8 " word is adopted to be wound around with Teflon tap, the winding of one laminating layer, successively stainless ball float is all wrapped up, finally, adopt the method being wound around Teflon tap that tetrafluoro is all wrapped again with glass fiber tape, fix and can not come off,
3), sintering is wound around the ball float of Teflon tap: by tetrafluoro sinter box blow-on preheating, after furnace temperature reaches 4 °, the ball float winding Teflon tap is put into tetrafluoro sinter box and carries out three-stage sintering, temperature adjusting in sinter box is 100 ° by first paragraph, sintering 50-80 minute, temperature adjusting in sinter box is 260 ° by second segment, sintering 100-140 minute, temperature adjusting in sinter box is 380 ° by the 3rd section, sintering 160---200 minutes, take stage intensification way, make tetrafluoro reach perfect sintering;
4), processing sintering ball float: stop heating by tetrafluoro sinter box, the temperature in tetrafluoro sinter box is made automatically to be cooled to less than 50 °, ball float after sintering is taken out, peel off outer field glass fiber tape again, extract the mould be placed on inside ball float endoporus, ball float on lathe, after two ends are withstood, ball float is cut into smooth in appearance, the finished product of endoporus even thickness;
5), inspection: use electric spark detector to detect, it is qualified that voltage 0.5KV detects without leak source.
Claims (4)
1. a method for making for tetrafluoro sintering ball float, is characterized in that it comprises the following steps:
1), stainless steel floating ball is made: adopt 304 stainless steels, be processed into external diameter
two semicircles and
stainless-steel tube one, stainless-steel tube outer side center part has the high temperature resistant magnet steel of ferrite, and its heatproof can reach 400 °, is welded by stainless-steel tube, be 304 ball floats with two hermetic modes of semicircle;
2), Teflon tap is wound around: first glass fiber tape is wrapped in 304 ball float surfaces compactly and fixes, the thickness that glass fiber tape is wound around is 26-32mm, secondly, delivery is fastening, mould is inserted tightly the center pit of stainless steel floating ball, justify align, then, the shape of " 8 " word is adopted to be wound around with Teflon tap, the winding of one laminating layer, all wraps up stainless ball float, finally successively, adopt the method being wound around Teflon tap that tetrafluoro is all wrapped again with glass fiber tape, fix and can not come off;
3), sintering is wound around the ball float of Teflon tap: by tetrafluoro sinter box blow-on preheating, after furnace temperature reaches 4 °, the ball float winding Teflon tap is put into tetrafluoro sinter box and carries out three-stage sintering, temperature adjusting in sinter box is 100 ° by first paragraph, sintering 50-80 minute, temperature adjusting in sinter box is 260 ° by second segment, sintering 100-140 minute, temperature adjusting in sinter box is 380 ° by the 3rd section, sintering 160---200 minutes, take stage intensification way, make tetrafluoro reach perfect sintering;
4), processing sintering ball float: stop heating by tetrafluoro sinter box, the temperature in tetrafluoro sinter box is made automatically to be cooled to less than 50 °, ball float after sintering is taken out, peel off outer field glass fiber tape again, extract the mould be placed on inside ball float endoporus, ball float on lathe, after two ends are withstood, ball float is cut into smooth in appearance, the finished product of endoporus even thickness;
5), inspection: use electric spark detector to detect, it is qualified that voltage 0.5KV detects without leak source.
2. the method for making of tetrafluoro sintering ball float according to claim 1, is characterized in that the argon arc welding that is welded as that described making stainless steel floating ball adopts is welded, polishes smooth after having welded.
3. the method for making of tetrafluoro sintering ball float according to claim 1, it is characterized in that described mould adopts CS carbon steel bar to process, there is two panels external diameter 27mm, the semicircle stainless steel (1) of length 160mm hollow, long 8mm, wide 6mm, length 160mm square steel rod (2) one, cylindrical plug (3) two composition, square steel rod (2) outer end connects semicircle stainless steel (1), two ends connecting cylinder shape plug (3).
4. the method for making of tetrafluoro sintering ball float according to claim 1, is characterized in that described glass fiber tape adopts wide 20mm, the glass fiber tape of thickness 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099936.XA CN103217202B (en) | 2013-03-12 | 2013-03-12 | Manufacturing method of teflon sintered floating ball |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099936.XA CN103217202B (en) | 2013-03-12 | 2013-03-12 | Manufacturing method of teflon sintered floating ball |
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| CN103217202A CN103217202A (en) | 2013-07-24 |
| CN103217202B true CN103217202B (en) | 2015-07-08 |
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| CN201310099936.XA Active CN103217202B (en) | 2013-03-12 | 2013-03-12 | Manufacturing method of teflon sintered floating ball |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103612395B (en) * | 2013-11-18 | 2016-03-02 | 新昌县大本仪表有限公司 | A kind of sintering method of metal floater parcel polytetrafluoroethylene (PTFE) of liquid level gauge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184196Y (en) * | 1992-12-25 | 1994-11-30 | 孙虹光 | Inspection mechanism of automatic liquid level display |
| CN1356535A (en) * | 2001-12-20 | 2002-07-03 | 李振宇 | anticorrosion ball float level controller |
| CN101788321A (en) * | 2010-02-01 | 2010-07-28 | 如皋市万通防腐有限公司 | Magnetic turning column liquid level meter, integral molding method of lining at joint and stretching die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607002A (en) * | 1993-04-28 | 1997-03-04 | Advanced Delivery & Chemical Systems, Inc. | Chemical refill system for high purity chemicals |
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2013
- 2013-03-12 CN CN201310099936.XA patent/CN103217202B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184196Y (en) * | 1992-12-25 | 1994-11-30 | 孙虹光 | Inspection mechanism of automatic liquid level display |
| CN1356535A (en) * | 2001-12-20 | 2002-07-03 | 李振宇 | anticorrosion ball float level controller |
| CN101788321A (en) * | 2010-02-01 | 2010-07-28 | 如皋市万通防腐有限公司 | Magnetic turning column liquid level meter, integral molding method of lining at joint and stretching die |
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| CN103217202A (en) | 2013-07-24 |
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Address after: 265400 No. 96 East Hill Road, Zhaoyuan, Shandong, Yantai Patentee after: Shandong Dongpeng automatic control instrument Co., Ltd Address before: 265400, No. 9, No. 96 East Hill Road, Shandong, Zhaoyuan Patentee before: ZHAOYUAN DONGPENG AUTOMATED INSTRUMENT Co.,Ltd. |
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