CN102909781A - Method for modifying high-damage umbrella group of electroceramic product - Google Patents
Method for modifying high-damage umbrella group of electroceramic product Download PDFInfo
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- CN102909781A CN102909781A CN2012104121523A CN201210412152A CN102909781A CN 102909781 A CN102909781 A CN 102909781A CN 2012104121523 A CN2012104121523 A CN 2012104121523A CN 201210412152 A CN201210412152 A CN 201210412152A CN 102909781 A CN102909781 A CN 102909781A
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- cluster parachute
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Abstract
The invention provides a method for modifying a high-damage umbrella group of an electroceramic product. The method comprises the steps as follows: at first, selecting a damaged umbrella group similar to a defective umbrella group in shape as a matrix to manufacture a defective umbrella group mould; then, pouring epoxy resin and a curing agent into the mould, curing, demoulding, and mounting a formed part to a defective part of the electroceramic product; and then, modifying to enable the defective umbrella group part and the undamaged electroceramic product part to be in smooth transition; and finally, glazing the surface. According to the method, the defective umbrella group mould is made in advance and then is poured and finally mounted at the defective part for modification. Or the made mould is mounted at the defective part at first and then is poured and modified. Therefore, fluid gum does not need to be fixed and the operation is simple.
Description
Technical field
The invention belongs in the electric product field of electroceramics manufacturing and use electroceramics porcelain piece, particularly a kind of electroceramics goods macrolesion cluster parachute method of modifying.
Background technology
The large-scale electroceramics porcelain piece of part because the larger area damage appears in a variety of causes in transportation, installation or running, causes the defectives such as cluster parachute clashing and breaking, has a strong impact on outward appearance and normal operation, need to carry out the part to the cluster parachute that damages to this and modify.Because the restrictions such as environmental condition can't use bulk material to modify, often need to adopt simple organic mode to finish damaging the modification of cluster parachute.
Usually the mode that adopts epoxy resin to add curing agent is carried out, but large-area cluster parachute is repaired, and has larger difficulty, lacks the experience of practical operation and the problem of method of modifying.
In the situation that do not affect electric property, utilize gypsum characteristics that the electroceramics goods are carried out appearance modification than the cluster parachute of macrolesion.
Summary of the invention
The invention provides a kind of electroceramics goods macrolesion cluster parachute method of modifying, convection cell glue carries out the position fixation problem when solving modification, and is easy and simple to handle, not high to the status requirement of operating environment and impaired product, reduced labour intensity, reached simultaneously and resile and improve the repairing aesthetics.
The technical solution adopted in the present invention is:
A kind of electroceramics goods macrolesion cluster parachute method of modifying, at first select the cluster parachute more similar to damaged cluster parachute shape as parent, make damaged cluster parachute mould with this parent, then casting epoxy resin and curing agent in this mould, after cured, the demoulding, the part of taking off is installed in the damaged part of electroceramics goods, then modify, make damaged cluster parachute part and intact part electroceramics goods smooth transition, smear at last surperficial glaze.
As the preferred embodiments of the present invention, when making mould, parent surface smearing release agent is coated with release cloth at the parent that scribbles releasing agent, and the area of described release cloth is smeared calcium plaster at release cloth at last greater than the parent area;
As the preferred embodiments of the present invention, after the described Mold Making well, dip in calcium plaster with pocket knife or writing brush and fill out scarce mending-leakage, then use thin liquid honing, so that the inner surface of gypsum mold is smooth;
As the preferred embodiments of the present invention, described curing agent is a kind of in polyamide 6 50, Versamid, the finger ring family polyamines;
As the preferred embodiments of the present invention, the mass ratio of described epoxy resin and curing agent is 1:1.0～1.2;
As the preferred embodiments of the present invention, be doped with filler in the described epoxy resin, this filler comprises porcelain sand or silica flour or aluminium powder, described filler fineness is 100 orders;
As the preferred embodiments of the present invention, the addition of described filler is no more than 30% of total amount;
As the preferred embodiments of the present invention, described releasing agent is vaseline, silicone oil, plant wet goods, synthetic paraffin, soft soap, soap or inorganic powder.
A kind of electroceramics goods macrolesion cluster parachute method of modifying at first selects the damaged cluster parachute more similar to damaged cluster parachute shape as parent, makes damaged cluster parachute mould with this parent, then with this mould slippage, guarantees that mould covers complete collyriculum cluster parachute position; Then mould is repaired, and offered steam vent and encapsulating mouth, polishing guarantees that mould inner surface is smooth; Casting epoxy resin and curing agent in the mould, umbrella shape is repaired in the after cured demoulding, smears surperficial glaze.
As the preferred embodiments of the present invention, shutoff steam vent in the process of cast guarantees that the epoxy curing agent densification is saturated.
Electroceramics goods macrolesion cluster parachute method of modifying of the present invention has the following advantages at least: the inventive method is made the mould of damaged cluster parachute in advance, then pour into a mould, at last it is installed in defect, modify, perhaps the mould of making is installed in first defect, pours into a mould again, modify.So, do not need convection cell glue to carry out the position and fix, and simple to operate.
The specific embodiment
1 raw-material selection and characteristic
1.1 the selection of patching material
1.1.1 the selection of epoxy resin
The epoxy resin of selecting has the characteristic that adhesion is strong, chemical stability is good, epoxy-resin systems after solidifying simultaneously has the superior isolation characteristic of good mechanical property and high dielectric property, anti-surface leakage, anti-electric arc, such as 618,6101, its casting performance is good on the one hand, after solidifying on the other hand, the degree of cross linking is high, and intensity is larger.Cluster parachute resistance to elevated temperatures after can avoiding like this repairing and the poor problem of strength character and the electric property of insulator of causing is unusual.
1.1.2 the selection of curing agent
The kind of epoxy curing agent commonly used is a lot, according to its characteristic and operating environment, can such as polyamide-based normal temperature or the curing agent of low temperature, such as Versamid, finger ring family polyamines etc., can make epoxy resin cure under the effect of light trigger.
Epoxide number is the main index of identifying the epoxy resin quality, and the model of epoxy resin is divided and distinguished according to the difference of epoxide number, can carry out type selecting according to amine molecule amount, epoxide number and product introduction, such as polyamide 6 50 curing agent.
General epoxy resin and curing agent mass ratio are 1:1.0～1.2.
1.1.3 other
In order to improve the epoxy resins insulation performance, but the choice for use plasticized modifier: such as DOP, DBP, TCP, TPP etc.; Diluent: such as acetone, alcohol; Simultaneously, for playing the consumption of good skeleton function and minimizing epoxy resin, reduce cost, can use the part filler: such as porcelain sand, silica flour, aluminium powder etc., the filler fineness adopts 100 order granularities, and addition is no more than 30% of total amount.
1.2 the selection of mould material
1.2.1 the selection of land plaster
Land plaster is chemically claiming semi-hydrated gypsum or bassanite, is by naturally a large amount of Gypsum Mine CaSO that exist
42h
2O loses 3/4 of the contained crystallization water when being heated to 150 ℃～170 ℃ and becomes, and bassanite just solidifies after in a single day being mixed into pastel with water soon, again becomes CaSO
42h
2O.We just utilize gypsum to be converted into the plasticity of solid by flowing liquid, make mould and fire works.
Note the shortcoming of land plaster, easily absorb moisture, along with the increase of moisture, degradation, the simultaneously coagulated time is short, solidifies rear fastness and reduces, even incoagulable phenomenon can occur.
1.2.1 the selection of releasing agent
After using land plaster, because land plaster water imbibition extra-heavy, gypsum mold is from master mold unloading process, and absorption affinity is strong, may cause the damage of mould.Therefore before making mould, at former master mold (namely on the corresponding porcelain piece cluster parachute) smearing release agent, help the demoulding.And releasing agent can use material: vaseline, silicone oil, plant wet goods, synthetic paraffin, soft soap, common soap and inorganic powder such as talcum, potter's clay etc.
1.2.3 Tuo Mobu
Equally, when carrying out the demoulding, also can use adminicle to carry out, such as gauze or coarse cloth, smear in advance lubricant and cover on the master mold, behind mould molding, together unload convenient operation together with gauze from master mold.
Generally speaking, damaged cluster parachute out-of-shape, position are unfixing, progressively pile up by the fluid epoxide-resin glue, and time span is long, and making profile can't ensure.By making corresponding mould to reach the modification purpose.
2, method of modifying
2.1, the method for modifying of outer casting embedding grammar
The method is fairly simple, exactly damaged cluster parachute is completed in advance, carries out bonding modification again.But, how to produce the shape of damaged part, be a relatively stubborn problem.
Produce damaged resinous cluster parachute, must make the parent of this cluster parachute, often damaged cluster parachute is imperfect maybe can't restore, and can adopt the cluster parachute that approaches with damaged cluster parachute shape as parent, use land plaster to carry out the making of mould, concrete method of modifying is as follows:
(1) making of mould and reparation: smearing release agent on the cluster parachute that chooses at first, then use Tuo Mobu to cover the cluster parachute surface, area is greater than plaster mold, to add the cluster parachute surface that calcium plaster that water stirs spreads upon lubricant and Tuo Mobu, make plaster mold, at last plaster mold be repaired, wherein, the defectives such as pore can be dipped in calcium plaster with pocket knife or writing brush and be filled out scarce mending-leakage, and use thin liquid honing, so that the inner surface of gypsum mold is smooth.
(2) cast: casting epoxy resin and curing agent, the after cured demoulding in the plaster mold that step (1) is made;
(3) install and modify: adopt adhesive to be installed in damaged cluster parachute part the part after step (2) demoulding, then modify and make damaged cluster parachute part and intact part electroceramics goods smooth transition, smear at last surperficial glaze and get final product.
2.2, the direct method of modifying of pouring procedure
(1) making of mould: smearing release agent on the cluster parachute that chooses at first, then use Tuo Mobu to cover the cluster parachute surface, area is greater than plaster mold, to add the cluster parachute surface that calcium plaster that water stirs spreads upon lubricant and Tuo Mobu, when damaged umbrella shape is too large, also can adopt the mode of pre-buried fine rule first gypsum mold to be cut apart to operate.
(2) installation of mould: step (1) is solidified good plaster mold slippage, guarantee that mould can cover complete collyriculum cluster parachute position, use mop slippage and the progressively demoulding.
(3) reparation of mould: the mounted gypsum mold of step (2) is carried out carefulness reparation, and the defectives such as pore can be dipped in calcium plaster with pocket knife or writing brush and be filled out scarce mending-leakage.Then according to the requirement of damaged umbrella shape position degree, be chosen in the unlatching of carrying out steam vent, encapsulating mouth on the mould, will open at least four or five holes on the general large mould, and use thin liquid honing, so that the inner surface of gypsum mold is smooth.
(4) cast: gypsum mold is installed on damaged cluster parachute, is checked errorless rear casting epoxy resin and curing agent, progressively use progressively shutoff steam vent of calcium plaster in the casting process; guarantee that the epoxyn densification is saturated; umbrella shape is repaired in the after cured demoulding, smears surperficial glaze and gets final product.
The above only is one embodiment of the present invention, it or not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (10)
1. electroceramics goods macrolesion cluster parachute method of modifying, it is characterized in that: at first select the cluster parachute more similar to damaged cluster parachute shape as parent, make damaged cluster parachute mould with this parent, then casting epoxy resin and curing agent in this mould, after cured, the demoulding, the part of taking off is installed in the damaged part of electroceramics goods, then modify, make damaged cluster parachute part and intact part electroceramics goods smooth transition, smear at last surperficial glaze.
2. a kind of electroceramics goods macrolesion cluster parachute method of modifying as claimed in claim 1, it is characterized in that: when making mould, parent surface smearing release agent, be coated with release cloth at the parent that scribbles releasing agent, the area of described release cloth is smeared calcium plaster at release cloth at last greater than the parent area.
3. a kind of electroceramics goods macrolesion cluster parachute method of modifying as claimed in claim 2 is characterized in that: after the described Mold Making well, dip in calcium plaster with pocket knife or writing brush and fill out scarce mending-leakage, then use thin liquid honing, so that the inner surface of gypsum mold is smooth.
4. such as the described a kind of electroceramics goods macrolesion cluster parachute method of modifying of any one in the claims 1 to 3, it is characterized in that: described curing agent is a kind of in polyamide 6 50, Versamid, the finger ring family polyamines.
5. such as the described a kind of electroceramics goods macrolesion cluster parachute method of modifying of any one in claim 1 or 4, it is characterized in that: the mass ratio of described epoxy resin and curing agent is 1:1.0～1.2.
6. such as the described a kind of electroceramics goods macrolesion cluster parachute method of modifying of any one in the claims 1 to 3, it is characterized in that: be doped with filler in the described epoxy resin, this filler comprises porcelain sand or silica flour or aluminium powder, and described filler fineness is 100 orders.
7. a kind of electroceramics goods macrolesion cluster parachute method of modifying as claimed in claim 6, it is characterized in that: the addition of described filler is no more than 30% of total amount.
8. such as the described a kind of electroceramics goods macrolesion cluster parachute method of modifying of any one in the claims 1 to 3, it is characterized in that: described releasing agent is vaseline, silicone oil, plant wet goods, synthetic paraffin, soft soap, soap or inorganic powder.
9. electroceramics goods macrolesion cluster parachute method of modifying, it is characterized in that: at first select the damaged cluster parachute more similar to damaged cluster parachute shape as parent, make damaged cluster parachute mould with this parent, then with this mould slippage, guarantee that mould covers complete collyriculum cluster parachute position; Then, mould is repaired, and offered steam vent and encapsulating mouth, polishing guarantees that mould inner surface is smooth; Casting epoxy resin and curing agent in the last mould, umbrella shape is repaired in the after cured demoulding, smears surperficial glaze.
10. a kind of electroceramics goods macrolesion cluster parachute method of modifying as claimed in claim 9 is characterized in that: shutoff steam vent in the process of cast, guarantee that the epoxy curing agent densification is saturated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104121523A CN102909781A (en) | 2012-10-25 | 2012-10-25 | Method for modifying high-damage umbrella group of electroceramic product |
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| CN2012104121523A CN102909781A (en) | 2012-10-25 | 2012-10-25 | Method for modifying high-damage umbrella group of electroceramic product |
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| CN102909781A true CN102909781A (en) | 2013-02-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515039A (en) * | 2016-10-27 | 2017-03-22 | 九牧厨卫股份有限公司 | Method for preparing working mold used for high-pressure grouting forming through female mold and cover mold |
| CN109305824A (en) * | 2018-09-29 | 2019-02-05 | 芜湖通潮精密机械股份有限公司 | A kind of restorative procedure of dry etching component ceramic layer damage |
| CN111231054A (en) * | 2020-01-07 | 2020-06-05 | 西华大学 | Gypsum model making method for runner flow passage of mixed flow turbine and parting agent thereof |
| CN114102938A (en) * | 2021-11-16 | 2022-03-01 | 贵州电网有限责任公司 | Method for rapid modeling and repairing damage of porcelain insulator of power equipment |
-
2012
- 2012-10-25 CN CN2012104121523A patent/CN102909781A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 李红宝等: "环氧树脂在损伤瓷件伞群修饰中的应用", 《电瓷避雷器》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515039A (en) * | 2016-10-27 | 2017-03-22 | 九牧厨卫股份有限公司 | Method for preparing working mold used for high-pressure grouting forming through female mold and cover mold |
| CN106515039B (en) * | 2016-10-27 | 2020-02-04 | 九牧厨卫股份有限公司 | Method for preparing working mold for high-pressure slip casting by using female mold and cover mold |
| CN109305824A (en) * | 2018-09-29 | 2019-02-05 | 芜湖通潮精密机械股份有限公司 | A kind of restorative procedure of dry etching component ceramic layer damage |
| CN111231054A (en) * | 2020-01-07 | 2020-06-05 | 西华大学 | Gypsum model making method for runner flow passage of mixed flow turbine and parting agent thereof |
| CN114102938A (en) * | 2021-11-16 | 2022-03-01 | 贵州电网有限责任公司 | Method for rapid modeling and repairing damage of porcelain insulator of power equipment |
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Application publication date: 20130206 |