CN111946821A

CN111946821A - Heat-resistant and pressure-resistant aluminum gasket and processing technology thereof

Info

Publication number: CN111946821A
Application number: CN202010791917.3A
Authority: CN
Inventors: 袁宝东
Original assignee: Nantong Shichuang Electronic Technology Co ltd
Current assignee: Nantong Shichuang Electronic Technology Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2020-11-17

Abstract

The invention belongs to the technical field of gasket processing, and particularly relates to a heat-resistant and pressure-resistant aluminum gasket and a processing technology thereof. The high-temperature sealing gasket has high practicability, adopts a half-rib structure, adopts high-temperature resistant materials, does not generate serious deformation and corrosion at high temperature, and has good sealing performance and stability.

Description

Heat-resistant and pressure-resistant aluminum gasket and processing technology thereof

Technical Field

The invention relates to the technical field of gasket processing, in particular to a heat-resistant and pressure-resistant aluminum gasket and a processing technology thereof.

Background

Gaskets are mechanical seals between two objects, typically to prevent pressure, corrosion, and natural thermal expansion and contraction leakage of the tubing between the two objects; because the machined surface cannot be perfect, the irregularities can be filled by using the gasket, the structure of the positioning gasket is complex, the precision requirement is high, when the use temperature is lower than 600 ℃, the conventional gasket can meet the sealing requirement, but when the use temperature is higher than 600 ℃;

the main shortcoming of present gasket is that when receiving high temperature, the gasket material intensity seriously descends, and protruding muscle loses the resilience easily, and high temperature makes the material appear intercrystalline corrosion material and becomes fragile easy fracture, and traditional gasket is established on the connecting piece usually in the use simultaneously, and when installation or take off the gasket, must take off the nut earlier, and the use is relatively more troublesome, and the gasket still has mechanical strength simultaneously and is little, yielding or cracked problem.

Therefore, we propose a heat and pressure resistant aluminum gasket and a process for manufacturing the same to solve the above problems

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a heat-resistant and pressure-resistant aluminum gasket and a processing technology thereof.

In order to achieve the purpose, the invention adopts the following technical scheme: a heat-resistant and pressure-resistant aluminum gasket comprises a gasket body, a first gasket and a second gasket, wherein one end of the first gasket is fixedly provided with a first clamping block, a first clamping groove is arranged at one end of the first gasket, which is far away from the first clamping block, a second clamping groove is fixedly arranged at one end of the second gasket, a second clamping groove is arranged at one end of the second gasket, which is far away from the second clamping groove, guide holes are arranged on the first gasket and the second gasket, a limiting mechanism is arranged in each of the two guide holes, the limiting mechanism comprises a cylinder, the cylinder penetrates through the guide hole and is connected with the inner wall of the guide hole in a sliding way, the cylinder is provided with a circular groove, one side of the cylinder close to the opening of the circular groove is fixedly provided with an annular block, rectangular holes are formed in the inner walls of the two sides of the circular groove, third clamping blocks are installed in the two rectangular holes in a rotating mode, and the two third clamping blocks penetrate through the corresponding rectangular holes respectively.

Preferably, two limiting holes are formed in the first gasket and the second gasket, and balls are installed in the four limiting holes in a rolling mode.

Preferably, the first gasket and the second gasket are respectively provided with a first half rib layer, a second flat plate layer, a third half rib layer and a fourth half rib layer, wherein the first half rib layer, the second flat plate layer, the third half rib layer and the fourth half rib layer are sequentially and fixedly connected together.

Preferably, fixed mounting has two round bars on the bottom inner wall of circular slot, and slidable mounting has same push pedal on two round bars, the bottom fixed mounting of push pedal has two springs, and the bottom of two springs all overlaps with the bottom inner wall fixed connection of circular slot, and two springs slip the cover respectively and establish on the round bar that corresponds, the top fixed mounting of push pedal has the push rod, the top fixed mounting of push rod has the ejector pad, and two third fixture blocks all with ejector pad sliding connection.

Preferably, the same rotating shaft is fixedly mounted on the inner walls of the two sides of the rectangular hole, the third clamping block is provided with a rotating hole, and the rotating shaft penetrates through the rotating hole and is rotatably connected with the inner wall of the rotating hole.

Preferably, a limiting groove is formed in the top of the third clamping block, a limiting rod is fixedly mounted on the inner wall of the top of the rectangular hole, and the bottom end of the limiting rod is connected with the inner wall of the limiting groove in a sliding mode.

Preferably, two slide holes are formed in the push plate, the two round rods respectively penetrate through the corresponding slide holes and are in sliding connection with the inner walls of the corresponding slide holes, and the top ends of the two round rods are fixedly provided with baffles.

Preferably, two corrugated pipes are fixedly mounted on the inner wall of the bottom of the circular groove, the top ends of the two corrugated pipes are fixedly connected with the bottom of the push plate, and the two corrugated pipes are respectively sleeved on the corresponding springs in a sliding manner.

A heat-resistant and pressure-resistant aluminum gasket processing technology comprises the following steps:

annealing: putting the aluminum plate into a heating furnace, firstly, increasing the furnace temperature to a temperature which is high and higher than about the temperature of annealing, and then, continuously increasing the furnace temperature to the annealing temperature (about the temperature of the iron box) after charging, cooling the iron box to the temperature along with the furnace after heat preservation, discharging the iron box, and cooling the air to the room temperature without opening the iron box, thereby obtaining the quenched aluminum plate;

secondly, blanking: cutting the annealed aluminum plate by using a plate shearing machine to obtain strip-shaped materials;

thirdly, stamping: stamping the strip-shaped material by a punch press to obtain a gasket body;

fourthly, deburring: deburring the gasket body through a shot blasting machine;

fifth, cleaning: cleaning the gasket body through cleaning equipment;

sixthly, quenching: the same method and heating temperature as those of annealing heating are adopted; taking out the iron box from the furnace after heating and heat preservation, opening the iron box cover, taking out the workpiece and putting the workpiece into oil for cooling; thereby obtaining a quenched gasket body;

and (c) galvanizing: putting the gasket body into a zinc liquid for galvanizing;

and eighthly, drying: naturally airing the gasket body to obtain a finished product;

r, coating a coating: and coating a high-temperature-resistant and pressure-resistant coating on the finished product.

Compared with the prior art, the invention has the beneficial effects that: the nut assembling and disassembling device is simple and reasonable in structure and convenient to assemble and disassemble, and only two half annular gasket parts are required to be combined and spliced without taking down the nut in advance; meanwhile, the surface of the gasket body is provided with the reinforcing ribs, so that the gasket has good mechanical strength; if the gasket part is damaged, only a single gasket part needs to be replaced, the replacement cost is reduced by half, the cost is low, and the working strength of assembling personnel cannot be increased.

The high-temperature sealing gasket has high practicability, adopts a half-rib structure, adopts high-temperature resistant materials, does not generate serious deformation and corrosion at high temperature, and has good sealing performance and stability.

Drawings

FIG. 1 is a schematic perspective view of a heat and pressure resistant aluminum gasket according to the present invention;

FIG. 2 is a schematic perspective view of a first gasket and a second gasket of the heat and pressure resistant aluminum gasket according to the present invention;

FIG. 3 is a front cross-sectional structural view of portion A of FIG. 2;

FIG. 4 is a schematic sectional view of a front view of a limiting mechanism in a heat-resistant and pressure-resistant aluminum gasket according to the present invention;

fig. 5 is an enlarged schematic view of a portion B in fig. 4.

In the figure: 1. a gasket body; 101. a first gasket; 102. a second gasket; 10201. a first semi-reinforcing layer; 10202. a second flat plate layer; 10203. a third half-rib layer; 10204. a fourth half-rib layer; 103. a second card slot; 104. a second fixture block; 105. a first card slot; 106. a first clamping block; 2. a guide hole; 3. a limiting mechanism; 301. a cylinder; 302. a ring block; 303. a circular groove; 304. a rectangular hole; 305. a third fixture block; 306. a round bar; 307. pushing the plate; 308. a spring; 309. a push rod; 310. a push block; 311. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-5, the embodiment provides a heat-resistant and pressure-resistant aluminum gasket, which includes a gasket body 1, a first gasket 101 and a second gasket 102, wherein a first clamping block 106 is fixedly installed at one end of the first gasket 101, a first clamping groove 105 is formed at one end of the first gasket 101, which is far away from the first clamping block 106, a second clamping groove 103 is fixedly installed at one end of the second gasket 102, a second clamping block 104 is formed at one end of the second gasket 102, which is far away from the second clamping groove 103, guide holes 2 are formed in the first gasket 101 and the second gasket 102, limiting mechanisms 3 are respectively arranged in the two guide holes 2, each limiting mechanism 3 includes a cylinder 301, the cylinder 301 penetrates through the guide hole 2 and is slidably connected with the inner wall of the guide hole 2, a circular groove 303 is formed in the cylinder 301, an annular block 302 is fixedly installed at one side of the cylinder 301, which is close to the opening of the circular groove 303, rectangular holes 304 are formed in the inner walls of the two sides of, the two third blocks 305 respectively penetrate through the corresponding rectangular holes 304;

two limiting holes 10505 are respectively arranged on the first gasket 101 and the second gasket 102, balls 10206 are respectively arranged in the four limiting holes 10205 in a rolling manner, a first half rib layer 10201, a second flat plate layer 10202, a third half rib layer 10203 and a fourth half rib layer 10204 are respectively arranged on the first gasket 101 and the second gasket 102, wherein the first half rib layer 10201, the second flat plate layer 10202, the third half rib layer 10203 and the fourth half rib layer 10204 are sequentially and fixedly connected together, two round rods 306 are fixedly arranged on the inner wall of the bottom of the round groove 303, the same push plate 307 is slidably arranged on the two round rods 306, two springs 308 are fixedly arranged at the bottom of the push plate 307, the bottom ends of the two springs 308 are respectively and fixedly connected with the inner wall of the bottom of the round groove 303, the two springs 308 are respectively and slidably sleeved on the corresponding round rods 306, a push rod 309 is fixedly arranged at the top of the push plate 307, a push block 310 is fixedly arranged at the top of the push rod 309, and two third blocks 305 are respectively and slidably, fixed mounting has same pivot 311 on the both sides inner wall of rectangular hole 304, the rotation hole has been seted up on the third fixture block 305, pivot 311 runs through the rotation hole and rotates the connection with the inner wall that rotates the hole, the spacing groove has been seted up at the top of third fixture block 305, fixed mounting has the gag lever post on the top inner wall of rectangular hole 304, the bottom of gag lever post and the inner wall sliding connection of spacing groove, two slide openings have been seted up on the push pedal 307, two round bars 306 run through corresponding slide opening respectively and with the inner wall sliding connection of the slide opening that corresponds, and the equal fixed mounting in top of two round bars 306 has the baffle, fixed mounting has two bellows on the bottom inner wall of round groove 303, the top of two bellows all with the bottom fixed connection of push pedal 307, and two bellows slide the cover respectively and establish on the spring 308 that corresponds.

annealing: putting the aluminum plate into a heating furnace, firstly increasing the furnace temperature to a temperature which is high and about 950 ℃ when annealing is carried out, since the furnace temperature can be immediately reduced after an iron box is charged, then continuously increasing the furnace temperature to an annealing temperature of about 870 ℃, carrying out heat preservation, cooling the furnace to 600 ℃ along with the furnace, then discharging the iron box, not opening the iron box, and carrying out air cooling to the room temperature, thereby obtaining the quenched aluminum plate; blanking: cutting the annealed aluminum plate by using a plate shearing machine to obtain strip-shaped materials; stamping: stamping the strip-shaped material by a punch press to obtain a gasket body 1; deburring: deburring the gasket body 1 through a shot blasting machine; cleaning: cleaning the gasket body 1 by cleaning equipment; quenching: the same method and heating temperature as those of annealing heating are adopted; taking out the iron box from the furnace after heating and heat preservation, opening the iron box cover, taking out the workpiece and putting the workpiece into oil for cooling; thereby obtaining a quenched gasket body 1; galvanizing: putting the gasket body 1 into a zinc liquid for galvanizing; drying: naturally airing the gasket body 1 to obtain a finished product 1; coating a coating: and (3) coating a high-temperature-resistant and pressure-resistant coating on the finished product 1.

Example 1

The preparation method comprises the following specific steps

When the gasket body 1 is used, the first fixture block 106 on the first gasket 101 is inserted into the second fixture groove 103 on the second gasket 102, and the second fixture block 104 on the second gasket 102 is inserted into the first fixture groove 105 on the first gasket 101, so that the first gasket 101 and the second gasket 102 are assembled, then the two limiting mechanisms 3 on the gasket body 1 are inserted into the preset fixture holes of the corresponding devices, under the action of the two springs 308, the push plate 307 is far away from the bottom inner wall of the circular groove 303, so that the push plate 307 can push the push block 310 to be far away from the bottom inner wall of the circular groove 303 through the push rod 309, then the two third fixtures 305 rotate and are far away from each other with the corresponding rotating shafts 311 as the center of a circle under the action of the push block 310, so that the two third fixture blocks 305 respectively abut against the two side inner walls of the fixture holes, so that the position of the gasket body 1 cannot easily shake, and when the gasket body 1 needs to be taken down, only need to press ejector pad 310 toward circular slot 303 bottom inner wall, then the position of two third fixture blocks 305 just can take place to remove to stop gear 3 alright take out in the card hole of predetermineeing from, thus alright take off gasket body 1.

Example 2

The preparation method comprises the following specific steps

Annealing: putting the aluminum plate into a heating furnace, firstly increasing the furnace temperature to a temperature which is high and about 950 ℃ when annealing is carried out, since the furnace temperature can be immediately reduced after an iron box is charged, then continuously increasing the furnace temperature to an annealing temperature of about 870 ℃, carrying out heat preservation, cooling the furnace to 600 ℃ along with the furnace, then discharging the iron box, not opening the iron box, and carrying out air cooling to the room temperature, thereby obtaining the quenched aluminum plate; blanking: cutting the annealed aluminum plate by using a plate shearing machine to obtain strip-shaped materials; stamping: stamping the strip-shaped material by a punch press to obtain a gasket body 1; deburring: deburring the gasket body 1 through a shot blasting machine; cleaning: cleaning the gasket body 1 by cleaning equipment; quenching: the same method and heating temperature as those of annealing heating are adopted; taking out the iron box from the furnace after heating and heat preservation, opening the iron box cover, taking out the workpiece and putting the workpiece into oil for cooling; thereby obtaining a quenched gasket body 1; galvanizing: putting the gasket body 1 into a zinc liquid for galvanizing; drying: naturally airing the gasket body 1 to obtain a finished gasket; coating a coating: the raw materials of the high-temperature and pressure-resistant coating which coats the upper layer of the high-temperature and pressure-resistant coating on the gasket finished product comprise 1-3 parts of organic montmorillonite, 25-35 parts of nitrile rubber, 2-4 parts of corundum sand, 5-10 parts of acrylate, 50-80 parts of mixed solvent, 5-10 parts of nano calcium carbonate, 5-10 parts of carbon black, 1-2 parts of polycaproate, 20-30 parts of ethanol, 6-10 parts of phenolic resin, 3-5 parts of borate, 1-2 parts of dodecyl trimethyl ammonium bromide, 1-2 parts of stearic acid, 4010NA2-4 parts of anti-aging agent, 0.5-1 part of N, N' -bi-cinnamylidene-1, 6-hexanediamine, 0.5-1 part of N-cyclohexyl-2-benzothiazole sulfenamide and 0.5; wherein the mixed solvent is prepared from ethyl acetate and cyclohexanone according to the ratio of 4: 6.

Example 3

The preparation method comprises the following specific steps

Putting the nitrile rubber, the polycaproate and the acrylate into one third of the mixed solvent, immersing the mixture into the mixed solvent, sealing and standing, after swelling for 3-5 hours, adding the remaining two thirds of the mixed solvent while stirring, stopping stirring after the nitrile rubber, the polycaproate and the acrylate are completely dissolved to form a glue solution, and sealing for later use; adding nano calcium carbonate, corundum sand, organic montmorillonite and carbon black into ethanol, uniformly stirring by magnetic force, adding phenolic resin, boric acid ester and dodecyl trimethyl ammonium bromide, and continuously stirring for 60-120min by magnetic force at the temperature of 50-80 ℃ to prepare a mixed dispersion liquid; and (c) adding the mixed dispersion liquid obtained in the step (b) into the glue liquid obtained in the step (a), adding stearic acid and an anti-aging agent 4010NA, stirring for 10-30min, adding N, N' -bi-cinnamyl idene-1, 6-hexamethylene diamine, N-cyclohexyl-2-benzothiazole sulfonamide and sulfur, transferring into a three-roll mill, and milling until the fineness reaches below 15 mu m to obtain a high-temperature-resistant and pressure-resistant coating, and then coating the gasket body 1 with the high-temperature-resistant and pressure-resistant coating.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A heat-resistant and pressure-resistant aluminum gasket comprises a gasket body (1) and is characterized in that a first gasket (101) and a second gasket (102) are arranged, a first clamping block (106) is fixedly arranged at one end of the first gasket (101), a first clamping groove (105) is formed in one end, away from the first clamping block (106), of the first gasket (101), a second clamping groove (103) is fixedly arranged at one end of the second gasket (102), a second clamping block (104) is formed in one end, away from the second clamping groove (103), of the second gasket (102), guide holes (2) are formed in the first gasket (101) and the second gasket (102), a limiting mechanism (3) is arranged in each of the two guide holes (2), each limiting mechanism (3) comprises a cylinder (301), each cylinder (301) penetrates through each guide hole (2) and is in sliding connection with the inner wall of each guide hole (2), a circular groove (303) is formed in each cylinder (301), circular slot (303) open-ended one side fixed mounting is close to cylinder (301) has annular piece (302), rectangular hole (304) have all been seted up on the both sides inner wall of circular slot (303), all rotate in two rectangular hole (304) and install third fixture block (305), and two third fixture blocks (305) run through corresponding rectangular hole (304) respectively.

2. The aluminum gasket of claim 1, wherein the first gasket (101) and the second gasket (102) are provided with two limiting holes (10505), and the four limiting holes (10205) are provided with balls (10206) in a rolling manner.

3. A heat and pressure resistant aluminium gasket according to claim 1, wherein the first gasket (101) and the second gasket (102) are provided with a first half-rib layer (10201), a second flat plate layer (10202), a third half-rib layer (10203) and a fourth half-rib layer (10204), wherein the first half-rib layer (10201), the second flat plate layer (10202), the third half-rib layer (10203) and the fourth half-rib layer (10204) are fixedly connected together in sequence.

4. The aluminum gasket of claim 1, wherein two round bars (306) are fixedly mounted on the inner wall of the bottom of the round groove (303), the same push plate (307) is slidably mounted on the two round bars (306), two springs (308) are fixedly mounted on the bottom of the push plate (307), the bottom ends of the two springs (308) are fixedly connected with the inner wall of the bottom of the round groove (303), the two springs (308) are respectively slidably sleeved on the corresponding round bars (306), a push rod (309) is fixedly mounted on the top of the push plate (307), a push block (310) is fixedly mounted on the top end of the push rod (309), and the two third clamping blocks (305) are slidably connected with the push block (310).

5. The aluminum gasket of claim 1, wherein the same shaft (311) is fixedly installed on the inner walls of the two sides of the rectangular hole (304), the third block (305) is provided with a rotation hole, and the shaft (311) penetrates through the rotation hole and is rotatably connected with the inner wall of the rotation hole.

6. The aluminum gasket of claim 1, wherein a limiting groove is formed at the top of the third block (305), a limiting rod is fixedly mounted on the inner wall of the top of the rectangular hole (304), and the bottom end of the limiting rod is slidably connected with the inner wall of the limiting groove.

7. The aluminum gasket of claim 4, wherein the push plate (307) has two sliding holes, the two round bars (306) respectively penetrate through the corresponding sliding holes and are slidably connected with the inner walls of the corresponding sliding holes, and the top ends of the two round bars (306) are fixedly provided with the baffle.

8. A heat and pressure resistant aluminum gasket according to claim 4, characterized in that two corrugated pipes are fixedly installed on the inner wall of the bottom of the circular groove (303), the top ends of the two corrugated pipes are fixedly connected with the bottom of the push plate (307), and the two corrugated pipes are respectively slidably sleeved on the corresponding springs (308).

9. A heat and pressure resistant aluminum gasket manufacturing process for manufacturing the gasket body of claim 1, comprising the steps of:

annealing: putting the aluminum plate into a heating furnace, firstly increasing the furnace temperature to a temperature which is high and about 950 ℃ higher than that of annealing, then continuing to increase the furnace temperature to the annealing temperature (about 870 ℃, keeping the temperature, cooling to 600 ℃ along with the furnace after keeping the temperature, then discharging the iron box, not opening the iron box, and cooling to room temperature by air, thereby obtaining the quenched aluminum plate;

fourthly, deburring: deburring the gasket body through a shot blasting machine;

fifth, cleaning: cleaning the gasket body through cleaning equipment;

and eighthly, drying: naturally airing the gasket body to obtain a finished gasket;

r, coating a coating: and coating an upper high-temperature-resistant and pressure-resistant coating on the gasket finished product.