CN107086483B - Insulating metal movable door plate and preparation method thereof - Google Patents
Insulating metal movable door plate and preparation method thereof Download PDFInfo
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- CN107086483B CN107086483B CN201710443447.XA CN201710443447A CN107086483B CN 107086483 B CN107086483 B CN 107086483B CN 201710443447 A CN201710443447 A CN 201710443447A CN 107086483 B CN107086483 B CN 107086483B
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- 239000002184 metal Substances 0.000 title claims abstract description 209
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 41
- 239000011810 insulating material Substances 0.000 claims abstract description 15
- 238000010292 electrical insulation Methods 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 32
- 230000001070 adhesive effect Effects 0.000 claims description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 229920002379 silicone rubber Polymers 0.000 claims description 23
- 239000004945 silicone rubber Substances 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 5
- 239000000463 material Substances 0.000 abstract description 10
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 68
- 239000002987 primer (paints) Substances 0.000 description 66
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000002156 mixing Methods 0.000 description 14
- 238000003756 stirring Methods 0.000 description 9
- 239000011247 coating layer Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 244000137852 Petrea volubilis Species 0.000 description 6
- 238000003889 chemical engineering Methods 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 101100214873 Autographa californica nuclear polyhedrosis virus AC78 gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013615 primer Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
Abstract
The utility model relates to an insulating metal movable door plate and a preparation method thereof, belonging to the technical field of switching devices for power supply or distribution. The insulating metal shutter plate comprises a shutter plate body made of insulating materials, wherein a metal plate is arranged on one side of the shutter plate body, and a bonding substance layer is arranged between the metal plate and the shutter plate body. The insulating metal movable door plate of the embodiment can enable the insulating metal movable door to have good electrical insulation performance, and the metal plate on the movable door plate body can enhance the mechanical strength of the insulating metal movable door plate; the bonding material layer arranged between the metal plate and the valve plate body can enhance the bonding strength between the metal plate and the valve plate body, and can further enhance the electrical insulation property of the insulating metal valve plate.
Description
Technical Field
The utility model relates to an insulating metal movable door plate and a preparation method thereof, belonging to the technical field of switching devices for power supply or distribution.
Background
The standardization of distribution networks has increasingly required power supply reliability and safety. The valve is one of the very important components of the alternating current metal-enclosed switchgear, and the reliability and the safety of the valve are very important for the stable operation of a power grid and the safety guarantee of equipment maintenance personnel. At present, a valve on alternating current metal-enclosed switchgear is generally a metal valve or an insulating material valve, the metal valve is generally made by spraying epoxy powder on a metal plate, and due to the large volume of the metal plate, the deflection deformation of the metal plate is large in the powder spraying process, so that the epoxy powder is unevenly coated, the thickness dispersibility of a formed epoxy layer is large, the yield is low, and the metal valve is not suitable for batch processing; the insulating material valve is generally made of a single insulating material (such as a BMC plate), is limited by the insulating material, is easy to deform in the use process, has defects in mechanical strength and electrical strength, and seriously affects the reliability and safety of the insulating material valve.
In the prior art, chinese patent publication No. CN204045943U discloses a high insulation type valve device, which comprises an upper valve and a lower valve, wherein the upper valve and the lower valve are made of metal materials, and the surface of the upper valve and the lower valve is provided with an epoxy insulation layer which is coated by adopting an epoxy layer vulcanization process and is used for isolating a primary contact. The valve has better mechanical strength, but in the use process, the coating layer is easily scratched and falls off so as to influence the insulating property of the valve.
Disclosure of Invention
The utility model aims to provide an insulating metal movable door plate with high mechanical strength and good electrical insulation performance.
The utility model also provides a preparation method of the insulated metal movable door plate.
In order to achieve the above purpose, the technical scheme adopted by the insulated metal shutter plate of the utility model is as follows:
an insulating metal shutter plate comprises a shutter plate body made of insulating materials, wherein a metal plate is arranged on one side of the shutter plate body, and a bonding substance layer is arranged between the metal plate and the shutter plate body.
According to the insulating metal movable door plate, the metal plate is arranged on the movable door plate body made of the insulating material, so that the insulating metal movable door has good electrical insulation performance on one hand, and the mechanical strength of the insulating metal movable door plate can be enhanced on the other hand; the bonding material layer arranged between the metal plate and the valve plate body can enhance the bonding strength between the metal plate and the valve plate body, and can further enhance the electrical insulation property of the insulating metal valve plate.
The thickness of the metal plate is 0.5-1.0 mm. The thickness of the bonding substance layer is 0.5-1.5 mm. The thickness of the valve plate body is 6.0-9.0 mm.
The bonding substance layer comprises a first primer coating, an adhesive curing layer and a second primer layer which are sequentially arranged in the direction far away from the metal plate. The thickness ratio of the first primer layer to the adhesive curing layer to the second primer layer is 0.05-0.10:0.4-1.3:0.05-0.10.
The movable door plate is characterized in that a groove is formed in the movable door plate body, the metal plate is arranged in the groove, and the bonding substance layer is located at the bottom of the groove. The metal plate is arranged in the groove, so that the thickness and the weight of the insulating metal movable door plate can be reduced; meanwhile, when the metal movable door plate is prepared, the metal plate is convenient to position and smear primer and adhesive, and the primer and the adhesive can be prevented from flowing out.
The sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove.
One side of the movable door plate body far away from the metal plate is provided with a reinforcing rib. The reinforcing ribs are arranged on the movable door plate body, so that the mechanical strength of the insulating metal movable door plate can be further enhanced.
And the metal plate is provided with a lead joint. The lead joint is a lead bolt. The lead connector is convenient for grounding the metal plate, so that damage to equipment and constructors caused by leakage current and induced charges is avoided, and the safety of the insulated metal valve plate is further enhanced.
The movable door plate body is formed by pressing SMC or BMC materials. The metal plate can be made of carbon structural steel or stainless steel, such as Q195 carbon structural steel and 1Cr18Ni9Ti stainless steel.
The preparation method of the insulated metal shutter plate adopts the following technical scheme:
the preparation method of the insulating metal valve plate comprises the following steps:
1) Polishing the part of the movable door plate body, which is used for arranging the metal plate, to form a polishing surface, and cleaning the polishing surface;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, and then cleaning and drying the bonding surface;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, and standing to volatilize solvent;
3) And (3) bonding the polished surface of the valve plate body coated with the primer and the bonding surface of the metal plate coated with the primer by adopting an adhesive.
The preparation method of the insulated metal valve plate is simple and convenient in technological operation, enables the metal valve plate to be smoother, is safer and more reliable in operation, and can improve electrical and mechanical strength.
The primer may be a primer of the prior art. For example, GBN-11 primer or model 1812 primer may be used. GBN-11 primer is manufactured by Milan chemical industry, inc. 1812 primer is produced by Guangzhou national high chemical technology Co., ltd, and comprises 1812A and 1812B. 1812A and 1812B are mixed according to the mass ratio of 10:1 and then used.
The cleaning liquid adopted in the process of cleaning the phosphated metal plate is a mixed liquid of ethanol and water.
The bonding is to coat the silicon rubber adhesive on the grinding surface of the movable door plate body coated with the primer, then to place the bonding surface of the metal plate coated with the primer on the grinding surface towards the movable door plate body, and to cure.
The adhesive is a silicone rubber adhesive.
The silicon rubber adhesive is double-component room temperature vulcanized silicon rubber. The mass ratio of the main agent and the vulcanizing agent of the bi-component vulcanized silicone rubber is 18-24:1. And uniformly mixing the main agent and the vulcanizing agent within 30 minutes before use, and then coating. The mixing is carried out by stirring. The stirring speed is 120-280 r/min and the stirring time is 3-8 min.
The two-component room temperature vulcanized silicone rubber is GMX-6117 silicone rubber. GMX-6117 silicone rubber is available from Milan chemical industry Co., ltd.
The thickness of the adhesive coated on the valve plate body is 0.5-1.5 mm.
The curing time is 3-5 h.
While curing, pressure is applied to the metal plate and the shutter plate body. The pressure is 5.0-15.0 MPa.
The movable door plate is characterized in that a groove is formed in the movable door plate body, and the part, used for arranging the metal plate, of the movable door plate body is located at the bottom of the groove. The metal plate is arranged in the groove, so that the metal plate is conveniently positioned and coated with the primer and the adhesive, and the primer and the adhesive can be prevented from flowing out; meanwhile, the thickness and the quality of the insulating metal movable door plate can be reduced.
The preparation method of the insulating metal shutter plate further comprises the step of welding a plurality of bolts on the metal plate. Bolts welded on the metal plate may be used for the leads.
Drawings
Fig. 1 is a schematic structural view of an insulated metal shutter plate of embodiment 1;
fig. 2 is a schematic structural view of a side of the insulating metal shutter plate of embodiment 1 on which a recess is provided in the shutter plate body;
fig. 3 is a schematic view showing the structure of the side of the shutter body of the insulated metal shutter plate of embodiment 1 on which the reinforcing ribs are provided;
fig. 4 is a front view of a metal plate of the insulated metal shutter plate of embodiment 1;
fig. 5 is a left side view of a metal plate of the insulated metal shutter plate of embodiment 1;
FIG. 6 is a cross-sectional view A-A of FIG. 1;
fig. 7 is a schematic structural view of an insulated metal shutter plate of embodiment 4.
Detailed Description
The technical scheme of the utility model is further described below with reference to the specific embodiments.
The metal plate adopted in the specific implementation mode is made of Q195 carbon structural steel; the adopted valve plate body is a BMC plate.
Example 1
The insulating metal shutter plate of the embodiment comprises a shutter plate body 1 made of insulating materials, wherein a groove 5 is formed in one side of the shutter plate body 1, a metal plate 2 is arranged in the groove 5, a bonding material layer 7 is arranged between the metal plate 2 and the bottom of the groove 5, the side wall of the metal plate 2 is tightly attached to the groove wall 3 of the groove 5, and a lead bolt 4 is arranged on the metal plate 2; the adhesive substance layer 7 is composed of a first primer layer (not shown), an adhesive cured layer (not shown) and a second primer layer (not shown) which are sequentially arranged in a direction away from the metal plate 2; the sum of the thicknesses of the metal plate 2 and the adhesive substance layer 7 is the same as the depth of the groove 5; the side of the movable door plate body 1 far away from the metal plate 2 is provided with a reinforcing rib 6, and the reinforcing rib 6 consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body 1 is 6.0mm, the thickness of the metal plate 2 is 0.5mm, and the thickness of the bonding material layer 7 is 0.5mm; the thickness ratio of the first primer layer, the adhesive substance layer, and the second primer layer was 0.05:0.40:0.05.
the preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body with a groove at one side for arranging the metal plate is polished and roughened by sand paper to form a polished surface, and the polished surface is cleaned by alcohol and placed for 5min; the part for arranging the metal plate is positioned at the bottom of the groove at one side of the valve plate body;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 5min;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, standing for 3min, and volatilizing the solvent; the primer used is GBN-11 type primer produced by the middle blue morning institute of research, inc.;
3) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 20:1, stirring for 8min at a rotating speed of 120r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body coated with a primer to form a coating layer with the thickness of 0.5mm within 30min, placing a bonding surface of a metal plate coated with the primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 5.0MPa, and placing and curing for 3h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
4) And then welding lead bolts on the metal plate to obtain the lead wire.
The bonding strength between the metal plate of the insulated metal movable plate and the main body of the movable plate is 900N/m, the power frequency withstand voltage is 42kV, the breakdown flashover phenomenon is avoided, and the electrical insulation performance is good.
Example 2
The insulating valve plate comprises a valve plate body made of insulating materials, wherein a groove is formed in one side of the valve plate body, a metal plate is arranged in the groove, a bonding substance layer is arranged between the metal plate and the bottom of the groove, the metal plate is tightly attached to the groove wall of the groove, and a lead bolt is arranged on the metal plate; the bonding substance layer consists of a first primer layer, an adhesive curing layer and a second primer layer which are sequentially arranged in a direction away from the metal plate; the sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove; the side of the lead bolt movable door plate body, which is far away from the metal plate, is provided with a reinforcing rib, and the reinforcing rib consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body is 7.0mm, the thickness of the metal plate is 0.8mm, and the thickness of the bonding material layer is 1.0mm; the thickness ratio of the first primer layer, the adhesive substance layer, and the second primer layer was 0.10:0.80:0.10.
the preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body with a groove at one side for arranging the metal plate is polished and roughened by sand paper to form a polished surface, and the polished surface is cleaned by alcohol and placed for 4min; the part for arranging the metal plate is positioned at the bottom of the groove at one side of the valve plate body;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 4min;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, standing for 5min, and volatilizing the solvent; the primer used is GBN-11 type primer produced by the middle blue morning institute of research, inc.;
3) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 20:1, stirring for 5min at a rotating speed of 200r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body coated with a primer to form a coating layer with a thickness of 1mm within 30min, placing a bonding surface of a metal plate coated with the primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 8.0MPa, and standing and curing for 5h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
4) And then welding lead bolts on the metal plate to obtain the lead wire.
The bonding strength between the metal plate of the insulated metal valve plate and the valve plate body is 950N/m, the power frequency withstand voltage is 42kV, the breakdown flashover phenomenon is avoided, and the electrical insulation performance is good.
Example 3
The insulating valve plate comprises a valve plate body made of insulating materials, wherein a groove is formed in one side of the valve plate body, a metal plate is arranged in the groove, a bonding substance layer is arranged between the metal plate and the bottom of the groove, the metal plate is tightly attached to the groove wall of the groove, and a lead bolt is arranged on the metal plate; the bonding substance layer consists of a first primer layer, an adhesive curing layer and a second primer layer which are sequentially arranged in a direction away from the metal plate; the sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove; the side of the lead bolt movable door plate body, which is far away from the metal plate, is provided with a reinforcing rib, and the reinforcing rib consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body is 9.0mm, the thickness of the metal plate is 1.0mm, and the thickness of the bonding material layer is 1.5mm; the thickness ratio of the first primer layer, the adhesive substance layer, and the second primer layer was 0.10:1.30:0.10.
the preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body with a groove at one side for arranging the metal plate is polished and roughened by sand paper to form a polished surface, and the polished surface is cleaned by alcohol and placed for 4min; the part for arranging the metal plate is positioned at the bottom of the groove at one side of the valve plate body;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 4min;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, standing for 3min, and volatilizing the solvent; the primer used is GBN-11 type primer produced by the middle blue morning institute of research, inc.;
3) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 20:1, stirring for 3min at a rotating speed of 280r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body coated with a primer to form a coating layer with a thickness of 1.5mm within 30min, placing a bonding surface of a metal plate coated with the primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 15MPa, and placing and curing for 5h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
4) And then welding lead bolts on the metal plate to obtain the lead wire.
The bonding strength between the metal plate of the insulated metal valve plate and the valve plate body is 950N/m, the power frequency withstand voltage is 42kV, the breakdown flashover phenomenon is avoided, and the electrical insulation performance is good.
Example 4
The insulating metal shutter plate of the embodiment comprises a shutter plate body 1 made of insulating materials, wherein a metal plate 2 is arranged on one side of the shutter plate body 1, and a lead bolt 4 is arranged on the metal plate 2 as shown in fig. 7; an adhesive substance layer 7 is arranged between the metal plate 2 and the valve plate body 1, and the adhesive substance layer 7 consists of a first primer layer (not shown in the figure), an adhesive curing layer (not shown in the figure) and a second primer layer (not shown in the figure) which are sequentially arranged in a direction away from the metal plate 2; the side of the movable door plate body 1 far away from the metal plate 2 is provided with a reinforcing rib 6, and the reinforcing rib 6 consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body 1 is 6.0mm, the thickness of the metal plate 2 is 1.0mm, and the thickness of the bonding material layer 7 is 1.5mm; the thickness ratio of the first primer layer, the adhesive substance layer, and the second primer layer was 0.10:1.30:0.10.
the preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body used for setting the metal plate is polished and roughened by sand paper to form a polished surface, the polished surface is cleaned by alcohol and is placed for 4min;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 4min;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, standing for 3min, and volatilizing the solvent; the primer used is GBN-11 type primer produced by the middle blue morning institute of research, inc.;
3) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 24:1, stirring for 5min at a rotating speed of 240r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body coated with a primer to form a coating layer with a thickness of 1.5mm within 30min, placing a bonding surface of a metal plate coated with the primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 10MPa, and placing and curing for 3h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
4) And then welding lead bolts on the metal plate to obtain the lead wire.
Example 5
The insulating metal movable door plate comprises a movable door plate body made of insulating materials, wherein a groove is formed in one side of the movable door plate body, a metal plate is arranged in the groove, a bonding substance layer is arranged between the metal plate and the bottom of the groove, the metal plate is tightly attached to the groove wall of the groove, and a lead bolt is arranged on the metal plate; the bonding substance layer is an adhesive curing layer; the sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove; the side of the lead bolt movable door plate body, which is far away from the metal plate, is provided with a reinforcing rib, and the reinforcing rib consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body is 9.0mm, the thickness of the metal plate is 1.0mm, and the thickness of the bonding material layer is 1.5mm.
The preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body with a groove at one side for arranging the metal plate is polished and roughened by sand paper to form a polished surface, and the polished surface is cleaned by alcohol and placed for 4min; the part for arranging the metal plate is positioned at the bottom of the groove at one side of the valve plate body;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 4min;
2) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 20:1, stirring for 3min at a rotating speed of 280r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body within 30min to form a coating layer with a thickness of 1.5mm, placing a bonding surface of a metal plate coated with a primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 10MPa, and placing and curing for 5h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
3) And then welding lead bolts on the metal plate to obtain the lead wire.
When the insulating metal valve plate is prepared, no primer is used, and compared with the insulating metal valve plates of other embodiments, the insulating metal valve plate has slightly lower bonding strength than the insulating metal valve plates of other embodiments and has good other performances.
Example 6
The insulating metal movable door plate comprises a movable door plate body made of insulating materials, wherein a groove is formed in one side of the movable door plate body, a metal plate is arranged in the groove, a bonding substance layer is arranged between the metal plate and the bottom of the groove, the metal plate is tightly attached to the groove wall of the groove, and a lead bolt is arranged on the metal plate; the bonding substance layer consists of a first primer layer, an adhesive curing layer and a second primer layer which are sequentially arranged in a direction away from the metal plate; the sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove; the side of the lead bolt movable door plate body, which is far away from the metal plate, is provided with a reinforcing rib, and the reinforcing rib consists of transverse reinforcing ribs and longitudinal reinforcing ribs which are crisscrossed.
The thickness of the valve plate body is 9.0mm, the thickness of the metal plate is 1.0mm, and the thickness of the bonding material layer is 1.5mm; the thickness ratio of the first primer layer, the adhesive substance layer, and the second primer layer was 0.10:1.30:0.10.
the preparation method of the insulating metal valve plate of the embodiment comprises the following steps:
1) The part of the valve plate body with a groove at one side for arranging the metal plate is polished and roughened by sand paper to form a polished surface, and the polished surface is cleaned by alcohol and placed for 4min; the part for arranging the metal plate is positioned at the bottom of the groove at one side of the valve plate body;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, cleaning the bonding surface with alcohol, and standing for 4min;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, standing for 3min, and volatilizing the solvent; the primer used is an AC78 primer;
3) Mixing a main agent of GMX-6117 silicone rubber and a vulcanizing agent according to a mass ratio of 20:1, stirring for 3min at a rotating speed of 280r/min, uniformly mixing, coating the main agent on a grinding surface of a valve plate body coated with a primer to form a coating layer with a thickness of 1.5mm within 30min, placing a bonding surface of a metal plate coated with the primer on the valve plate body towards the grinding surface, adding a counterweight on the metal plate to form a pressure of 10MPa, and placing and curing for 5h at normal temperature; the GMX-6117 silicone rubber is produced by the middle blue chemical industry institute of advanced chemical engineering, inc.;
4) And then welding lead bolts on the metal plate to obtain the lead wire.
The bonding strength between the metal plate of the insulated metal valve plate and the valve plate body is above 850N/M, the power frequency withstand voltage is 42kV, the breakdown flashover phenomenon is avoided, and the electrical insulation performance is good.
Example 7 of the insulated metal shutter plate of the present utility model is different from example 1 only in that no reinforcing rib is provided on the shutter plate body.
Embodiment 8 of the insulated metal shutter plate of the present utility model differs from embodiment 1 only in that the top surface of the metal plate does not protrude beyond the wall of the groove.
Claims (9)
1. An insulating metal shutter board, includes the shutter board body of making by insulating material, its characterized in that: a metal plate is arranged on one side of the valve plate body, and a bonding substance layer is arranged between the metal plate and the valve plate body; the thickness of the metal plate is 0.5-1.0 mm, and the thickness of the bonding substance layer is 0.5-1.5 mm; the movable door plate body is provided with a groove, the metal plate is arranged in the groove, and the bonding substance layer is positioned at the bottom of the groove; the metal plate can enhance the mechanical strength of the insulating metal shutter plate, and the bonding substance layer can enhance the electrical insulation property of the insulating metal shutter plate.
2. The insulated metal shutter plate according to claim 1, wherein: the sum of the thicknesses of the metal plate and the bonding substance layer is the same as the depth of the groove.
3. The insulated metal shutter plate according to claim 1 or 2, wherein: one side of the movable door plate body, which is far away from the metal plate, is provided with a reinforcing rib.
4. The insulated metal shutter plate according to claim 1, wherein: and the metal plate is provided with a lead joint.
5. A method of making an insulated metal shutter plate according to claim 1, wherein: the method comprises the following steps:
1) Polishing the part of the movable door plate body, which is used for arranging the metal plate, to form a polishing surface, and cleaning the polishing surface;
phosphating one surface of the metal plate, which is used for bonding with the valve plate body, to form a bonding surface, and then cleaning and drying the bonding surface;
2) Respectively coating primer on the polished surface of the valve plate body and the bonding surface of the metal plate, and standing to volatilize solvent;
3) And (3) bonding the polished surface of the valve plate body coated with the primer and the bonding surface of the metal plate coated with the primer by adopting an adhesive.
6. The method for producing an insulated metal shutter plate according to claim 5, wherein: the bonding is to coat the adhesive on the grinding surface of the movable door plate body coated with the primer, then to place the bonding surface of the metal plate coated with the primer on the grinding surface towards the movable door plate body, and to solidify.
7. The method for producing an insulated metal shutter plate according to claim 5, wherein: the adhesive is a silicone rubber adhesive.
8. The method for producing an insulated metal shutter plate according to claim 6, wherein: the adhesive is double-component room temperature vulcanized silicone rubber, and the mass ratio of a main agent to a vulcanizing agent of the double-component room temperature vulcanized silicone rubber is 18-24:1.
9. The method for producing an insulated metal shutter plate according to claim 6, wherein: while curing, pressure is applied to the metal plate and the shutter plate body.
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