CN1830539A - Large anticorrosion equipment lined with fusible fluoroplastic and its manufacturing method - Google Patents
Large anticorrosion equipment lined with fusible fluoroplastic and its manufacturing method Download PDFInfo
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- CN1830539A CN1830539A CN 200610024162 CN200610024162A CN1830539A CN 1830539 A CN1830539 A CN 1830539A CN 200610024162 CN200610024162 CN 200610024162 CN 200610024162 A CN200610024162 A CN 200610024162A CN 1830539 A CN1830539 A CN 1830539A
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Abstract
A large anticorrosion apparatus (pipe) with internal liner layer made of fusible fluoric plastics is composed of a casing made of steel or glass fiber reinforced plastics and said internal liner layer. Its preparing process includes such steps as preparing the film of fusible fluoric plastics, coating demoulding agent on the external surface of a mould, winding said film on the mould until needed thickness, wrapping a layer of glass fiber cloth, binding the refractory band, thermal plasticizing in furnace for a certain time, slow cooling, demoulding, lining, closing both ends by blind plates, and removing said blind plates.
Description
Technical field
The present invention relates to a kind of anticorrosion equipment of inner lining fluoroplastics, relate in particular to large anticorrosion lining equipment such as tower, still, jar, groove of a kind of lined with fusible fluoroplastic and preparation method thereof.
Background technology
Fluoroplastics are as a kind of anti-corrosion material, and except that polytetrafluoroethylene (PTFE), all the other are meltability.But the application of various countries, the world today in corrosion-resistant field, as the corrosion protective lining of using on the large anticorrosion lining equipments such as PTFE tube road, tower, still, mainly with infusibility fluoroplastics polytetrafluoroethylene (PTFE) as corrosion protective lining, lining equipment comprises outer steel shell, the outer steel shell inner surface is with teflon lined, its manufacturing process is very ripe, uses also very universal.Then usefulness is seldom for other fusible fluoroplastic (as PVDF, PFA etc.).But these materials are compared with PTFE, and its price is high, but its unique distinction is also arranged, and as PVDF, proportion is little, and hardness is big, and plasticization temperature (170 ℃) differs greatly handling ease with decomposition temperature (more than 300 ℃).PFA has another name called meltability PTFE, and it is corrosion-resistant just the same with heat resistance and PTFE, but it is transparent, can be clear that response situation of device interior or the like.At present in the world, tower, still, jar, the process technology of the fusible fluoroplastic lining of large anticorrosion lining equipments such as groove is to be welded with welding rod with the little fusible fluoroplastic sheet material of polylith, its processing technology is that one one of fusible fluoroplastic sheet material such as PVDF or PFA is sticked on tower earlier, still, jar, the box hat inner surface of large anticorrosion lining equipments such as groove, seam between plate and the plate is welded with the welding rod of same material, the large anticorrosion lining equipment of Zhi Zuoing thus, its fusible fluoroplastic lining is not the integral seamless structure, it is splicing construction, its shortcoming is, sheet material is expensive, the cost height, weld seam is many, make trouble, and quality also is difficult to guarantee, and is of non-ideal use.
Summary of the invention
Technical problem to be solved by this invention provide a kind of fusible fluoroplastic with the integral seamless structure be lining large anticorrosion equipment and preparation method thereof, enlarging the application of fusible fluoroplastic on large anticorrosion equipment, and overcome the above-mentioned defective that existing large anticorrosion equipment that is lining with the splicing construction fusible fluoroplastic and preparation method thereof exists.Large anticorrosion equipment of the present invention is meant large anticorrosion lining equipments such as tower, still, jar, groove.
For solving the problems of the technologies described above, large anticorrosion equipment lined with fusible fluoroplastic provided by the present invention, comprise steel or glass fibre reinforced plastics casing, steel or glass fibre reinforced plastics casing inner surface are with the fusible fluoroplastic lining, described fusible fluoroplastic lining is the thin wall layer of integral seamless structure, and is bonding by bonding agent and steel or glass fibre reinforced plastics casing.For some manufacture craft condition, the described thin wall layer outside also has cohesible transition zone, as glass layer.Fusible fluoroplastic comprises Kynoar (PVDF), Meltability polytetrafluorethyletubular (PFA), perfluoroethylene-propylene (FEP), ETFE EVA (ETFE) and associated materials.
The preparation method of large anticorrosion equipment lined with fusible fluoroplastic of the present invention comprises:
(1), fusible fluoroplastic resin sintering is molded into columniform block of material, and be processed into the film of thick about 0.1-0.3mm;
(2), mold outer surface solvent decontamination that moulding is used, after doing, spread very thin one deck remover;
(3), with fusible fluoroplastic film multilayer binding outside mould, to desired thickness, again at the thick glass fabric of its outsourcing last layer 0.1-0.2mm;
(4), tie up the exotic material band of thick 0.1-0.2mm back and forth in glass fabric outside, glass fabric all is enclosed in the inside;
(5), the workpiece that bandages is sent into the stove heating plasticizing, be incubated about 2 hours, allow it slowly cool to about 50 ℃, take out workpiece, with being water-cooled near room temperature;
(6), the demoulding, obtain the fusible fluoroplastic lining of integral seamless structure;
(7), lining dress: fusible fluoroplastic lining outer surface is tied, use the solvent decontamination, and with steel or the decontamination of glass fibre reinforced plastics casing inner surface, smear binding agent at the outer surface of fusible fluoroplastic lining and steel or glass outer steel shell inner surface then, lining is inserted in steel or glass fibre reinforced plastics casing, the two ends flange is flattened on the steel flange sealing surface it;
(8), shut with blind plate at the member two ends that will serve as a contrast after adorning;
(9), open the two ends blind plate, promptly obtain the anticorrosion equipment with integral seamless fusible fluoroplastic thin wall layer.
The invention has the beneficial effects as follows: because lining is the fusible fluoroplastic thin wall layer of integral seamless structure, and one-body molded, therefore can reduce the production cost of large anticorrosion equipment widely, the product overall structure is good, serviceability is superior, the life-span is long, handling ease.
Description of drawings
Fig. 1 is the structural representation of the outer steel shell tower joint of an embodiment of the present invention liner Kynoar.
Fig. 2 is the structural representation of a kind of embodiment of the mould that uses in the preparation method of the present invention.
Fig. 3 is the side view of mould shown in Figure 2.
Fig. 4 is the structural representation of the another kind of embodiment of the mould that uses in the preparation method of the present invention.
Fig. 5 is the cutaway view along A-A line among Fig. 4.
The specific embodiment
Embodiment as shown in Figure 1 is that a kind of Kynoar fusible fluoroplastic that adopts is the steel tower joint of lining, comprises Kynoar lining 2 and outer steel shell 1, and lining 2 is the thin wall layer of integral seamless structure, and is bonding by bonding agent and outer steel shell 1.
The outer steel shell anticorrosion equipment that is lining with above-mentioned Kynoar fusible fluoroplastic (tower joint) is that example further specifies preparation method of the present invention below:
(1), the polyvinylidene fluoride resin sintering is molded into the cylindrical block material, and be processed into the polyvinylidene difluoride film of thick about 0.1-0.3mm.
(2), design and produce as Fig. 2, Fig. 3 or Fig. 4, mould one cover shown in Figure 5 with stainless steel.Wherein, Fig. 2, mould shown in Figure 3 are to be linked and packed and to form with right mould 4 usefulness connecting axles 5, nut 6 by left mould 3; Fig. 4, mould shown in Figure 5 are put together by six stainless punching block lobes 7,8,9,10,11,12, and piece is connected with screw with the piece end face.With the solvent decontamination of mold outer surface, after doing, spread the remover of very thin one deck such as silicone oil with alcohol or acetone and so on.
(3), with polyvinylidene difluoride film at mould outside multilayer binding to desired thickness, again at the thick glass fabric of its outsourcing last layer 0.1-0.2mm.
(4), tie up the exotic material band of thick 0.1-0.2mm back and forth in glass fabric outside, glass fabric all is enclosed in the inside, the exotic material band can adopt stainless steel strip.
(5), the Kynoar workpiece that bandages is sent into the stove heating plasticizing,, be incubated about 2 hours, allow it slowly cool to about 50 ℃, take out workpiece, with being water-cooled near room temperature to 170 ℃; Certainly, the temperature difference of different materials heating plasticizing is wanted 380 ℃ as Meltability polytetrafluorethyletubular.
(6), the demoulding: adopt as Fig. 2, mould shown in Figure 3, its release method is, after treating that work-piece cools is to about the room temperature, take off the exotic material band (can repeatedly use) that tie up the outside, unload the nut 6 at connecting axle two ends, extract connecting axle 5, left mould 3 and right mould 4 are drawn back to two, the demoulding, lining is made successfully; Adopt as Fig. 4, mould shown in Figure 5, its release method is, after treating that work-piece cools is to about the room temperature, take off the exotic material band that tie up the outside, strike down earlier relative two mould lobes 7,8 inwards, use the same method then and strike down other mould lobe 9,10,11,12, the demoulding, lining is made successfully.For improve the amalgamation of many mould lobes to article inner surface bring not attractive in appearance, can also wrap one deck stainless sheet steel again in the outside of Fig. 4, flatten die shown in Figure 5, during the demoulding, take away all mould lobes after, again stainless sheet steel is peeled.
(7), the lining dress: the glass fabric of Kynoar lining outer surface is in sintering process, bondd by the polyvinylidene fluoride resin infiltration in its braiding seam, become transition zone, good and outer steel shell bonds, glass fabric also has the residual point of many Kynoar outward, available sand paper is tied Kynoar fusible fluoroplastic lining outer surface, solvent decontamination with alcohol or acetone and so on, and with the decontamination of box hat inner surface, smear binding agent at Kynoar lining outer surface and box hat inner surface then, the Kynoar lining is inserted in box hat, and the two ends flange is flattened on the steel flange sealing surface it.
(8), member (tower joint) two ends are shut with blind plate, use 1-2kg/cm in the device
2Air pressure or hydraulic pressure pressurization make inside liner and box hat paste tightlyer, and pressure will remain to till the adhesive cures, if it chill temperature is low, gas in the device or water can be heated 40-60 ℃, and can shorten hardening time.
(9), open the two ends blind plate, obtain large anticorrosion equipment (tower joint) with the fusible fluoroplastic thin wall layer of integral seamless structure.
Claims (9)
1, a kind of large anticorrosion equipment lined with fusible fluoroplastic, comprise steel or glass fibre reinforced plastics casing, steel or glass fibre reinforced plastics casing inner surface is characterized in that described fusible fluoroplastic lining is the thin wall layer of integral seamless structure with the fusible fluoroplastic lining, and be bonding by bonding agent and steel or glass fibre reinforced plastics casing.
2, large anticorrosion equipment lined with fusible fluoroplastic according to claim 1 is characterized in that described thin wall layer also has cohesible transition zone.
3, the preparation method of a kind of claim 1 or 2 described large anticorrosion equipment lined with fusible fluoroplastic is characterized in that described preparation method comprises:
(1), fusible fluoroplastic resin sintering is molded into columniform block of material, and be processed into the film of thick about 0.1-0.3mm;
(2), mold outer surface solvent decontamination that moulding is used, after doing, spread very thin one deck remover;
(3), with fusible fluoroplastic film multilayer binding outside mould, to desired thickness, again at the thick glass fabric of its outsourcing last layer 0.1-0.2mm;
(4), tie up the exotic material band of thick 0.1-0.2mm back and forth in glass fabric outside, glass fabric all is enclosed in the inside;
(5), the workpiece that bandages is sent into the stove heating plasticizing, be incubated about 2 hours, allow it slowly cool to about 50 ℃, take out workpiece, with being water-cooled near room temperature;
(6), the demoulding, obtain the fusible fluoroplastic lining of integral seamless structure;
(7), lining dress: fusible fluoroplastic lining outer surface is tied, use the solvent decontamination, and with steel or the decontamination of glass fibre reinforced plastics casing inner surface, smear binding agent at the outer surface of fusible fluoroplastic lining and steel or glass fibre reinforced plastics casing inner surface then, lining is inserted in steel or glass fibre reinforced plastics casing, the two ends flange is flattened on the steel flange sealing surface it;
(8), shut with blind plate at the member two ends that will serve as a contrast after adorning;
(9), open the two ends blind plate, promptly obtain the anticorrosion member with integral seamless fusible fluoroplastic thin wall layer.
4, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 3 is characterized in that the mould described in the method step (2) is to be linked and packed with connecting axle, nut by left mould and right mould to form.
5, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 4, it is characterized in that the release method described in the step (6) is: after treating that work-piece cools is to about the room temperature, take off the exotic material band that tie up the outside, unload the nut at connecting axle two ends, extract connecting axle, left mould and right mould are drawn back to two, and lining is promptly made success.
6, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 3 is characterized in that the mould described in the method step (2) is put together by six stainless punching block lobes, and piece is connected with screw with the piece end face.
7, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 6, it is characterized in that the release method described in the step (6) is: after treating that work-piece cools is to about the room temperature, take off the exotic material band that tie up the outside, strike down earlier two relative mould lobes inwards, use the same method then and strike down other mould lobe, the demoulding, lining is made successfully.
8, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 6 is characterized in that the outside of the flatten die described in the method step (2) is wrapped one deck stainless sheet steel again.
9, the preparation method of large anticorrosion equipment lined with fusible fluoroplastic according to claim 3 is characterized in that using 1-2kg/cm in the device in the step (8)
2Air pressure or hydraulic pressure pressurization, pressure will remain to till the adhesive cures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100241624A CN100548469C (en) | 2006-02-23 | 2006-02-23 | Large anticorrosion equipment lined with fusible fluoroplastic and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100241624A CN100548469C (en) | 2006-02-23 | 2006-02-23 | Large anticorrosion equipment lined with fusible fluoroplastic and preparation method thereof |
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| CN1830539A true CN1830539A (en) | 2006-09-13 |
| CN100548469C CN100548469C (en) | 2009-10-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032506A (en) * | 2018-01-16 | 2018-05-15 | 株洲宏大高分子材料有限公司 | A kind of tetrafluoroethene and perfluoroalkyl vinyl ether copolymer bourdon tube forming method |
| CN108058368A (en) * | 2017-12-12 | 2018-05-22 | 济南山源环保科技有限公司 | A kind of flue lining fluorine plastic corrosion-proof layer manufacture craft |
| CN108099223A (en) * | 2017-12-27 | 2018-06-01 | 沈阳浦利尔科技有限公司 | Composite material/metallic stacked structure multiple tube co-curing manufacturing method |
-
2006
- 2006-02-23 CN CNB2006100241624A patent/CN100548469C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108058368A (en) * | 2017-12-12 | 2018-05-22 | 济南山源环保科技有限公司 | A kind of flue lining fluorine plastic corrosion-proof layer manufacture craft |
| CN108099223A (en) * | 2017-12-27 | 2018-06-01 | 沈阳浦利尔科技有限公司 | Composite material/metallic stacked structure multiple tube co-curing manufacturing method |
| CN108032506A (en) * | 2018-01-16 | 2018-05-15 | 株洲宏大高分子材料有限公司 | A kind of tetrafluoroethene and perfluoroalkyl vinyl ether copolymer bourdon tube forming method |
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| Publication number | Publication date |
|---|---|
| CN100548469C (en) | 2009-10-14 |
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Assignee: Zhao Wei Assignor: Zhao Wei Contract record no.: 2012330000264 Denomination of invention: Large anticorrosion equipment lined with fusible fluoroplastic and its manufacturing method Granted publication date: 20091014 License type: Exclusive License Open date: 20060913 Record date: 20120516 |
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Application publication date: 20060913 Assignee: Zhao Wei Assignor: Zhao Wei Contract record no.: 2012330000264 Denomination of invention: Large anticorrosion equipment lined with fusible fluoroplastic and its manufacturing method Granted publication date: 20091014 License type: Exclusive License Record date: 20120516 |
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