CN104385638A - Glass fiber reinforced plastic water tank crack repairing technology - Google Patents
Glass fiber reinforced plastic water tank crack repairing technology Download PDFInfo
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- CN104385638A CN104385638A CN201410524339.1A CN201410524339A CN104385638A CN 104385638 A CN104385638 A CN 104385638A CN 201410524339 A CN201410524339 A CN 201410524339A CN 104385638 A CN104385638 A CN 104385638A
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Abstract
The invention relates to a glass fiber reinforced plastic water tank crack repairing technology. The technology comprises the following steps of polishing inner cracks of a glass fiber reinforced plastic water tank until a first-layer glass fiber cloth is exposed, respectively drilling two technique holes at two ends of the crack, cutting a metal filter screen and glass fiber cloths, uniformly coating the cracks with a prepared resin binder, pasting the first-layer glass fiber cloth, carrying out blade coating with the resin binder, pasting the second-layer glass fiber cloth, carrying out coating with the binder, simultaneously pasting the third-layer glass fiber cloth and the metal filter screen, repeating the above binder coating and pasting processes until the 4th-6th glass fiber cloths are pasted, then carrying out blade coating on the last-layer glass fiber cloth with the resin binder and carrying out curing. The technology has simple processes and a low cost, contains the stainless steel metal filter screen sandwich, improves repaired layer tensile and compressive strength and is free of water tank replacement.
Description
Technical field
The present invention relates to a kind of repair technology of Glass fabre reinforced plastic water tank crackle, belong to the technical field of metallurgical equipment.
Background technology
At present, the cooling circulation water tank that the small-sized smelting equipments such as domestic vacuum drying oven, intermediate frequency furnace are used, most employing SMC fiberglass combination water tank, it is assembled by the SMC moulded glass steel veneer of overall high-quality, and SMC mold pressing veneer adopts resin, glass fiber cloth, through HTHP, mechanical compaction forms, Glass fabre reinforced plastic water tank, through Long-Time Service, easily cracks suddenly, caused by the comprehensive function of the reason mainly aging and internal stress of reinforced plastic plate.After crackle produces suddenly, cooling circulating water fast leak, causes the smelting equipment such as vacuum drying oven, intermediate frequency furnace to stop production.Therefore, existing Glass fabre reinforced plastic water tank needs to change because cracking, and original old Glass fabre reinforced plastic water tank is removed, the Glass fabre reinforced plastic water tank more renewed, implementation cost is high, wastes time and energy, and the cycle is long, and impact is produced.
CN101890816A discloses a kind of method for repairing and mending of glass fiber reinforced plastics product, and it comprises the following steps: (1) judges that the defect of glass fiber reinforced plastics product is the need of artificial expansion, if needed, enters step 2, if do not needed, then leaps to step 3; (2) cut open and scrape defect place and peripheral position thereof, defect place is expanded; (3) defect place is alternately smeared, until the powder of glass-reinforced plastic material and the mixture of strength adhesive fill up and exuberant defect place by the powder of prefabricated glass-reinforced plastic material and strength adhesive; (4) repair the part at the powder of glass-reinforced plastic material and the mixture overflow defect place of strength adhesive, make the exterior contour of glass fiber reinforced plastics product meet designing requirement; (5) outside the defect place trimmed, white oil is smeared.But the method is only applicable to the defect caused in glass fiber reinforced plastics product preparation, processing, installation process.The repairing of the crackle using rear generation can not be used for.
Summary of the invention
For above technical deficiency, the present invention relates to a kind of repair technology of Glass fabre reinforced plastic water tank crackle.
Term illustrates:
Glass fabre reinforced plastic water tank is assembled by SMC moulded glass steel veneer, and SMC mold pressing veneer adopts resin, glass fiber cloth, forms through HTHP, compacting.Commercially available.
Technical program of the present invention lies in:
A method for repairing and mending for Glass fabre reinforced plastic water tank crackle, comprises step as follows:
(1) polished in Glass fabre reinforced plastic water tank internal fissure position, the whole crackle of polishing area covering, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth, fabrication hole is bored in the plate face of the destination county of crackle, wipes clean polishing surface;
(2) also polishing is clean for cutting metal screen a slice, cutting glass fiber cloth 4-6 sheet, cutting area at least can cover crackle area occupied, and glass fiber cloth area ground floor is minimum, successively increase progressively, metal screen is identical with third layer glass fiber cloth size;
(3) prepare resin binder, following component mixed by weight ratio:
(4) the resin binder of step (3) at the even blade coating one deck of crack site putty scraper plate, then paste ground floor glass fiber cloth, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, paste second layer glass fiber cloth, continue to paste the operation of one deck glass fiber cloth by one deck resin binder, paste layer of metal filter screen when pasting third layer glass fiber cloth simultaneously, continue to paste the operation of one deck glass fiber cloth by one deck resin binder, until 4th ~ 6 layers of glass fiber cloth are pasted complete, blade coating one deck resin binder again on the glass fiber cloth of in the end that one deck, solidification 20-24 hour, repairing completes.
After repairing, water tank is cleaned out and fills water, can come into operation.
In resin binder described in step of the present invention (3), 191# unsaturated-resin is major ingredient, and methyl ethyl ketone peroxide is curing agent, and cobalt naphthenate is promoter, and filler made by talcum powder.Preferably filler made by 325 order talcum powder further.
Preferred according to the present invention, described glass fabric thickness 0.2 ± 0.05mm.
Preferred according to the present invention, described metal screen is stainless steel filtering net; Preferred 80-120 order metal screen further, thickness 0.2 ± 0.05mm.
Preferred according to the present invention, polishing to crack site in step (1) is polish with angle grinding machine clamping emery disc; Described angle grinding machine is Bosch TWS6000, power 620W, rotating speed 11000r/min.Described emery disc is blinds chip polishing sand dish, and specification is 100x16mm (emery disc diameter is 100mm, and installing hole diameter is 16mm).
Preferred according to the present invention, the aperture of boring fabrication hole described in step (1) is φ 3-5mm.When one end destination county of crackle is in water tank corner, only bore a fabrication hole at the other end crackle terminal away from water tank corner.
Preferred according to the present invention, cutting metal screen tinsmith snips in step (2).
Preferred according to the present invention, the width of the putty scraper plate described in step (4) is 160-170mm.
Preferred according to the present invention, in step (4), the thickness of resin binder blade coating one deck is 0.5-0.8mm.
Preferred according to the present invention, the weight of water tank bottom Crack Repairing resin binder is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 1 part, cobalt naphthenate 1 part, 325 order talcum powder 20 parts.
Preferred according to the present invention, the weight of water tank crackle described resin binder when water tank bight is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 2 parts, cobalt naphthenate 2 parts, 325 order talcum powder 25 parts.
Preferred according to the present invention, the weight of water tank side Crack Repairing resin binder is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 3 parts, cobalt naphthenate 3 parts, 325 order talcum powder 30 parts.
Preferred according to the present invention, when crackle produces on one piece of reinforced plastic plate of water tank bight two vertical plane, Bonded Repair layer during repairing extends on adjoining vertical surface.That is, the length of glass fiber cloth, metal screen can not only cover crackle, also should extend on adjacent another side.Such Crack Repairing layer of corner that can make is more firm.
According to the present invention, specifically, a kind of Glass fabre reinforced plastic water tank Crack Repairing technique, step is as follows:
1. remove contamination: at the in-built movable illumination device of water tank, first water remaining in Glass fabre reinforced plastic water tank and dirt are cleaned out; Be convenient to the position finding crackle;
2. look for crackle: that block sheet material finding Glass fabre reinforced plastic water tank to crack, carry out mark, measure length and the width of crackle area occupied with steel tape, calculate crackle area occupied;
3. polish: polish to crack site angle grinding machine clamping emery disc, polishing area is enough large, and must comprise crackle area occupied, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth.
Crackle two ends terminal respectively bores fabrication hole, wipes clean polishing surface with dry cloth.When one end destination county of crackle is in water tank corner, only bore a fabrication hole at the other end crackle terminal away from water tank corner.
4. cutting: also polishing is clean by tinsmith snips cutting metal screen a slice, with scissors cutting glass fiber cloth 4-6 sheet, cutting area is determined, the minimum crackle that just covers of glass fiber cloth ground floor according to crackle area occupied size, successively increase progressively, metal screen occupies third layer;
5. resin binder is allocated by weight: pour in Plastic Drum by 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 1-3 part, cobalt naphthenate 1-3 part, 325 order talcum powder 20-30 parts, stir.
6. paste: adopt hand to stick with paste technique, at crack site putty scraper plate even for resin binder blade coating one deck, then paste one deck glass fiber cloth, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, method continues like this, during third layer, paste metal screen, until 4-6 layer glass fiber cloth paste List, strike off, after compacting, with blade coating one deck resin binder even on putty scraper plate in the end one deck glass fiber cloth, solidification 20-24 hour, repairs complete;
7. water filling is cleared up: the water tank repaired is cleaned out and fills water, can come into operation.
Preferred according to the present invention, described step is middle length and the width measuring crackle 2., and the object calculating crackle area occupied is the amount that estimation will prepare resin binder, and the size of glass fiber cloth and metal screen size.
Preferred according to the present invention, described step 3. in, described aperture of boring fabrication hole at crackle terminal is φ 3-5mm.This fabrication hole crackle capable of blocking prolongs stress, effectively prevents crackle from continuing cracking.
Preferred according to the present invention, described step 4. in, described metal screen thickness 0.2mm, order number 100 order, arranges the strengths in tension and compression that this layer of metal screen can improve stickup repair layer afterwards.
Preferred according to the present invention, described step 6. in, resin binder coating starts solidification after 30 minutes, within 20-24 hour, intensity reaches the highest.
It is 0.1 ~ 2mm that repair technology of the present invention is applicable to fracture width, and the penetration of fracture is 1 ~ 6mm.The length of crackle area occupied is 50 ~ 300mm, width is 20 ~ 200mm
In the repair technology of fiberglass of the present invention, all raw material and instrument are existing, comprising: 191# unsaturated-resin, methyl ethyl ketone peroxide, cobalt naphthenate, talcum powder, glass fabric, metal screen, steel tape, electric drill, agitator, angle grinding machine, emery disc, drill bit, Plastic Drum, putty scraper plate.
The present invention is specially adapted to the repairing of the cool cycles Glass fabre reinforced plastic water tank of the small-sized smelting equipment such as vacuum drying oven, intermediate frequency furnace.
The Glass fabre reinforced plastic water tank adopting the present invention to repair is used for intermediate frequency furnace equipment cooling circulation water tank, greatly can extend the service life of water tank.
Excellent results of the present invention is as follows:
1, method of the present invention can quick solution glass water tank seepy question, resumes production fast.
2, the repair technology of Glass fabre reinforced plastic water tank crackle of the present invention is simple to operate, and cost is low, avoids because changing water tank or the therefore dual economy loss brought that stops production.
3, the repair technology of Glass fabre reinforced plastic water tank crackle of the present invention one deck in the middle of repair layer accompanies stainless steel metal filter screen, improves the strengths in tension and compression of repair layer; Increase substantially the service life of Glass fabre reinforced plastic water tank.
Accompanying drawing explanation
Fig. 1 is Glass fabre reinforced plastic water tank bottom crack structural representation of the present invention; Wherein upper figure is A-A sectional view; A1, Glass fabre reinforced plastic water tank sheet material; A2, crackle; A3, sticking veneer; A4, fabrication hole.
Fig. 2 is Glass fabre reinforced plastic water tank corner crack three-view diagram of the present invention, and upper left is front view, lower-left is top view, upper right is left view; Crackle produces at wherein one block of glass epoxy of adjacent two blocks of vertical glass steel plates, repairs when pasting two vertical planes need be pasted simultaneously; B1, Glass fabre reinforced plastic water tank sheet material; B2, crackle; B3, sticking veneer; B4, fabrication hole; B5, sticking veneer.
Fig. 3 is Glass fabre reinforced plastic water tank side of the present invention crackle structural representation, and wherein figure below is C-C sectional view; C1, Glass fabre reinforced plastic water tank sheet material; C2, crackle; C3, sticking veneer; C4, fabrication hole.
Detailed description of the invention
Below in conjunction with embodiment and Figure of description, the present invention is elaborated, but be not limited thereto.
Glass fabre reinforced plastic water tank in embodiment is fiberglass combination water tank, and water tank sheet metal thickness is 6mm, and Teng Xiang fiberglass group company of Shandong Province produces and sells.Use 191# unsaturated-resin, Wenzhou hundred million Xin Da industrial chemicals Co., Ltd; Cobalt naphthenate, Zichuan, Zibo City Lu Tai Chemical Co., Ltd..Glass fabric thickness 0.2mm.Metal screen is stainless steel filtering net 100 order, thickness 0.2mm, commercial products.
The angle grinding machine used in embodiment is Bosch TWS6000, power 620W, rotating speed 11000r/min.Described emery disc is blinds chip polishing sand dish, is of a size of 100x16mm; Electric hand drill is adjustable speed Hitachi D13VG, power 800W, rotating speed 0-600r/min.
Embodiment 1, Glass fabre reinforced plastic water tank crackle produce at water tank bottom, and as shown in Figure 1, Crack Repairing processing step is as follows:
In water tank, movable illumination device is installed, first remaining water interior bottom Glass fabre reinforced plastic water tank and dirt is cleaned out.Find that block sheet material a1 cracked bottom Glass fabre reinforced plastic water tank, carry out mark, fracture width is about 0.5mm, the penetration of fracture is 6mm.With the length that crackle a2 area occupied measured by steel tape be 200mm, width is 40mm, calculates crackle area occupied.
Polish to crack site angle grinding machine clamping emery disc, polishing area is enough large, and must comprise crackle area occupied, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth.Crackle two ends terminal respectively bores fabrication hole a4, and aperture is φ 4mm, wipes clean polishing surface, i.e. sticking veneer a3 with dry cloth.
Clean with the polishing of tinsmith snips cutting metal screen a slice, with scissors cutting glass fiber cloth 5, cutting area is determined according to crackle area occupied size, glass fiber cloth ground floor minimum (220mm × 60mm), successively increase progressively (periphery extends out 10mm), layer 5 is maximum, metal screen and third layer glass fiber cloth measure-alike.
The weight of resin binder: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 1 part, cobalt naphthenate 1 part, 325 order talcum powder 20 parts; Pour in plastics keg, stir with electric hand drill clamping agitator.
Adopt hand to stick with paste technique, personnel enter Glass fabre reinforced plastic water tank inside, and with putty scraper plate at crack site even blade coating one deck resin binder, thickness is about 0.8mm, then paste one deck glass fiber cloth, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, method continues like this, during third layer, pastes metal screen, until five layers of glass fiber cloth paste List, strike off, after compacting, also need with blade coating resin binder on putty scraper plate in the end one deck glass fiber cloth.The resin binder thickness of each layer is equal.The gross thickness of resin binder repair layer is about 5.2mm.After repairing complete 24 hours, water tank is cleaned out and fills water, can come into operation.
Embodiment 2, Glass fabre reinforced plastic water tank crackle produce in water tank bight, and as shown in Figure 2, the repair technology step of crackle is as follows:
Remaining water and dirt in cleaning Glass fabre reinforced plastic water tank, that block sheet material b1 finding Glass fabre reinforced plastic water tank bight to crack, carry out mark, fracture width is about 0.5mm, the penetration of fracture is 6mm.Be 90mm and width by the length that crackle b2 area occupied measured by steel tape be 30mm.
Crack site angle grinding machine clamping emery disc is polished, crackle appears at wherein on one piece of reinforced plastic plate, two vertical planes need be pasted simultaneously during stickup, the polishing sticking veneer b3 at corner crack place and the sticking veneer b5 of adjoining vertical surface thereof, polishing area is enough large, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth.Crackle one end terminal away from corner bores fabrication hole b4, and aperture is φ 4mm, wipes clean polishing surface with dry cloth.
By tinsmith snips cutting metal screen a slice, with scissors cutting glass fiber cloth 5, cutting area is determined according to the adjacent two vertical plane b3 of corner crack and b5 area occupied size, and b3 is of a size of 90mm × 40mm, and b5 is of a size of 40mm × 40mm; Glass fiber cloth ground floor minimum (110mm × 60mm), successively increase progressively (periphery extends out 10mm), layer 5 is maximum, and metal screen occupies third layer.After metal screen cutting, polishing is clean, needs metal screen 90-degree bent according to repairing.
The weight of resin binder: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 2 parts, cobalt naphthenate 2 parts, 325 order talcum powder 25 parts; Pour in plastics keg, stir with electric hand drill clamping agitator.
Hand is adopted to stick with paste technique, personnel enter Glass fabre reinforced plastic water tank inside, at adjacent two vertical planes of corner crack, use putty scraper plate even blade coating one deck resin binder respectively, thickness is about 0.7mm, then paste one deck glass fiber cloth cover crackle and extend to adjoining vertical surface, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, method continues like this, during third layer, paste metal screen, until five layers of glass fiber cloth paste List, strike off, after compacting, also need with blade coating resin binder on putty scraper plate in the end one deck glass fiber cloth, the resin binder thickness of each layer is equal, and the gross thickness of repair layer is about 4.7mm.After repairing complete 24 hours, water tank is cleaned out and fills water, can come into operation.
Embodiment 3, Glass fabre reinforced plastic water tank crackle produce in side, and as Fig. 3, the repair technology step of crackle is as follows:
Remaining water and dirt in cleaning Glass fabre reinforced plastic water tank, that block sheet material c1 finding Glass fabre reinforced plastic water tank side to crack, fracture width is about 0.5mm, the penetration of fracture is 6mm.Be 260mm and width by the length that crackle c2 area occupied measured by steel tape be 60mm, calculate crackle area occupied.
Polish with angle grinding machine clamping emery disc respectively to the inner surface c3 of crack site reinforced plastic plate, polishing area is enough large, and must comprise crackle area occupied, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth.Crackle two ends terminal respectively bores fabrication hole c4, wipes clean polishing surface with dry cloth.
By tinsmith snips cutting metal screen equal area a slice, with scissors cutting glass fiber cloth 4, cutting area is determined according to crackle area occupied size, glass fiber cloth ground floor minimum (280mm × 80mm), successively increase progressively (periphery extends out 10mm), 4th layer maximum, and metal screen occupies third layer.After metal screen cutting, polishing is clean.
The weight of resin binder: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 3 parts, cobalt naphthenate 3 parts, 325 order talcum powder 30 parts; Pour in plastics keg, stir with electric hand drill clamping agitator.
Hand is adopted to stick with paste technique, personnel enter Glass fabre reinforced plastic water tank inside, at crack site putty scraper plate even blade coating one deck resin binder, thickness is about 0.8mm, when noting side blade coating resin binder, for anti-phenomenon of down trickling needs artificial blade coating repeatedly, paste one deck glass fiber cloth when it is in half curdled appearance, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, artificial blade coating repeatedly like this method continues, during third layer, paste metal screen, until four-layer glass silk fiber cloth paste List, strike off, after compacting, also need with blade coating resin binder on putty scraper plate in the end one deck glass fiber cloth.The resin binder thickness of each layer is equal, and the gross thickness of resin binder repair layer is about 4.2mm.After repairing complete 24 hours, water tank is cleaned out and fills water, can come into operation.
Glass fabre reinforced plastic water tank after adopting embodiment 1-3 method to repair is used for intermediate frequency furnace equipment cooling circulation water tank, and service time all found no drainage more than 180 days.
Claims (7)
1. a method for repairing and mending for Glass fabre reinforced plastic water tank crackle, comprises the steps:
(1) polished in Glass fabre reinforced plastic water tank internal fissure position, the whole crackle of polishing area covering, grinding depth will remove press polish layer, until expose ground floor glass fiber cloth, fabrication hole is bored in the face of the destination county of crackle, wipes clean polishing surface;
(2) also polishing is clean for cutting metal screen a slice, cutting glass fiber cloth 4-6 sheet, and cutting area at least can cover crackle, and glass fiber cloth area ground floor is minimum, successively increases progressively, and metal screen is identical with third layer glass fiber cloth size;
(3) prepare resin binder, following component mixed by weight ratio:
(4) the resin binder of step (3) at the even blade coating one deck of crack site putty scraper plate, then paste ground floor glass fiber cloth, strike off compacting with putty scraper plate; Blade coating one deck resin binder again on ground floor glass fiber cloth, paste second layer glass fiber cloth, continue to paste the operation of one deck glass fiber cloth by one deck resin binder, paste layer of metal filter screen when pasting third layer glass fiber cloth simultaneously, continue to paste the operation of one deck glass fiber cloth by one deck resin binder, until 4th ~ 6 layers of glass fiber cloth are pasted complete, blade coating one deck resin binder again on the glass fiber cloth of in the end that one deck, solidification 20-24 hour, repairing completes.
2. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, described glass fabric thickness 0.2 ± 0.05mm.
3. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, described metal screen is stainless steel filtering net, and stainless steel filtering net is 80-120 order, thickness 0.2 ± 0.05mm.
4. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, boring the aperture of fabrication hole at crackle terminal described in step (1) is φ 3-5mm.
5. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, the width of the putty scraper plate described in step (4) is 160-170mm.
6. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, in step (4), the thickness of resin binder blade coating one deck is 0.5-0.8mm.
7. the repair technology of a kind of Glass fabre reinforced plastic water tank crackle as claimed in claim 1, is characterized in that, the weight of resin binder is one of following:
A. the weight of water tank bottom Crack Repairing resin binder is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 1 part, cobalt naphthenate 1 part, 325 order talcum powder 20 parts;
B. the weight of water tank crackle resin binder used when water tank bight is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 2 parts, cobalt naphthenate 2 parts, 325 order talcum powder 25 parts;
C. the weight of water tank side Crack Repairing resin binder is: 191# unsaturated-resin 100 parts, methyl ethyl ketone peroxide 3 parts, cobalt naphthenate 3 parts, 325 order talcum powder 30 parts.
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| CN201410524339.1A CN104385638B (en) | 2014-10-08 | 2014-10-08 | Glass fiber reinforced plastic water tank crack repairing technology |
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| CN201410524339.1A CN104385638B (en) | 2014-10-08 | 2014-10-08 | Glass fiber reinforced plastic water tank crack repairing technology |
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Cited By (7)
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| CN104847682A (en) * | 2015-04-24 | 2015-08-19 | 华能伊敏煤电有限责任公司 | Repair technology for draught fan shell of electric wheel dump truck for open pit mine |
| CN106926486A (en) * | 2016-12-30 | 2017-07-07 | 长春中车轨道车辆有限公司 | Fiberglass water pond renovation method |
| CN110253910A (en) * | 2019-06-19 | 2019-09-20 | 鲁西工业装备有限公司 | A kind of renovation technique of composite fibre equipment and application |
| CN110948915A (en) * | 2019-11-26 | 2020-04-03 | 上海伽材新材料科技有限公司 | Repairing structure and repairing process for through-type pores and cracks on surface of carbon fiber shell |
| CN111103716A (en) * | 2019-12-27 | 2020-05-05 | 苏州凯利昂光电科技有限公司 | Method for preventing liquid crystal panel from cracking and extending |
| CN111976040A (en) * | 2020-09-01 | 2020-11-24 | 赣州市业润自动化设备有限公司 | Water tank on monocrystalline silicon wafer chamfering machine |
| CN112848417A (en) * | 2020-11-27 | 2021-05-28 | 黄冈格罗夫氢能汽车有限公司 | Crack repair method for carbon fiber composite product of hydrogen fuel cell automobile |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847682A (en) * | 2015-04-24 | 2015-08-19 | 华能伊敏煤电有限责任公司 | Repair technology for draught fan shell of electric wheel dump truck for open pit mine |
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| CN106926486B (en) * | 2016-12-30 | 2019-03-19 | 长春中车轨道车辆有限公司 | Glass reinforced plastic water pond renovation method |
| CN110253910A (en) * | 2019-06-19 | 2019-09-20 | 鲁西工业装备有限公司 | A kind of renovation technique of composite fibre equipment and application |
| CN110253910B (en) * | 2019-06-19 | 2022-01-25 | 鲁西工业装备有限公司 | Repair process and application of composite fiber equipment |
| CN110948915A (en) * | 2019-11-26 | 2020-04-03 | 上海伽材新材料科技有限公司 | Repairing structure and repairing process for through-type pores and cracks on surface of carbon fiber shell |
| CN111103716A (en) * | 2019-12-27 | 2020-05-05 | 苏州凯利昂光电科技有限公司 | Method for preventing liquid crystal panel from cracking and extending |
| CN111976040A (en) * | 2020-09-01 | 2020-11-24 | 赣州市业润自动化设备有限公司 | Water tank on monocrystalline silicon wafer chamfering machine |
| CN112848417A (en) * | 2020-11-27 | 2021-05-28 | 黄冈格罗夫氢能汽车有限公司 | Crack repair method for carbon fiber composite product of hydrogen fuel cell automobile |
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| CN104385638B (en) | 2017-01-18 |
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