CN111511140A - Low-pressure explosion-proof integrated end cover and manufacturing process thereof - Google Patents
Low-pressure explosion-proof integrated end cover and manufacturing process thereof Download PDFInfo
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- CN111511140A CN111511140A CN202010388289.4A CN202010388289A CN111511140A CN 111511140 A CN111511140 A CN 111511140A CN 202010388289 A CN202010388289 A CN 202010388289A CN 111511140 A CN111511140 A CN 111511140A
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- end cover
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a low-pressure explosion-proof integrated end cover and a manufacturing process thereof, belonging to the technical field of end covers and comprising an end cover main body, an end cover inner cylinder and an end cover outer cylinder, wherein a plurality of fixed blocks are distributed on the edge of the end cover main body at equal intervals; a plurality of radiating fins are fixed on the outer wall of the end cover outer barrel, the radiating fins are arranged along the inner diameter direction of the end cover main body, and the other ends of the radiating fins extend to the outer edge of the end cover main body; the distance between the integrally formed end cover inner cylinder and the lantern ring is 10-14cm, the surfaces of the end cover inner cylinder and the lantern ring are flush, when the integrally formed end cover inner cylinder and the lantern ring are connected with the rest parts of the motor shell, a large gap cannot occur, uneven surfaces on contact surfaces of the end cover inner cylinder and the lantern ring are solved, the radiating fins are fixed on the thin parts between the lantern ring and the end cover inner cylinder, and two rows of radiating holes are further formed in the radiating fins, so that heat on the end cover main body can be quickly radiated, and the overall radiating effect of the end cover.
Description
Technical Field
The invention relates to the technical field of end covers, in particular to a low-pressure explosion-proof integrated end cover and a manufacturing process thereof.
Background
The end cover is arranged on the rear cover behind the machine shell, the end cover is used as an important component of the machine shell, the quality of the end cover directly influences the normal operation of the whole machine, at present, the end cover is mostly in clearance fit with a concave platform or a spigot of an end cover of an execution device through a front end cover spigot or a boss, then the end cover is connected through a fastener, gaps exist in connection, the fastener is easy to loosen, the transmission stability can be influenced, the heat dissipation performance and the sealing performance of the existing end cover are poor, the service life is shortened, and therefore the heat dissipation and the sealing performance of the integrated end cover are required to be improved.
Disclosure of Invention
The invention aims to provide a low-pressure explosion-proof integrated end cover and a manufacturing process thereof, wherein when the low-pressure explosion-proof integrated end cover is connected with the rest part of a motor shell, a larger gap can not be formed, the uneven surface on the contact surface is solved, the part between a lantern ring and an end cover inner cylinder is thinner, a radiating fin is fixed on the thinner part between the lantern ring and the end cover inner cylinder, and two rows of radiating holes are also formed in the radiating fin, so that the heat on an end cover main body can be quickly radiated, the integral radiating effect of the end cover main body is further improved, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a low-pressure explosion-proof integrated end cover comprises an end cover main body, an end cover inner cylinder and an end cover outer cylinder, wherein a plurality of fixed blocks are distributed on the edge of the end cover main body at equal intervals, and the end cover inner cylinder and the end cover outer cylinder are symmetrically arranged on two side surfaces of the end cover main body respectively;
a plurality of radiating fins are fixed on the outer wall of the end cover outer barrel, the radiating fins are arranged along the inner diameter direction of the end cover main body, and the other ends of the radiating fins extend to the outer edge of the end cover main body;
the end cover inner cylinder is connected with the end cover outer cylinder, a through rotating shaft connecting hole is processed in the circle center of the end cover inner cylinder and the end cover outer cylinder, a lantern ring is fixed on an end cover main body on the outer side of the end cover inner cylinder, the lantern ring and the end cover inner cylinder are coaxial, a stud is connected on the end cover main body between the lantern ring and the end cover inner cylinder, grids are distributed on the outer peripheral surface of the lantern ring at equal intervals, and the other end of each grid is fixed on an inner side step.
Furthermore, a circle of mounting holes are processed in the end cover inner cylinder and the end cover outer cylinder outside the rotating shaft connecting hole, a plurality of sections of sliding groove are arranged on the surface of the end cover inner cylinder outside the rotating shaft connecting hole, and the width of the sliding groove of each sliding groove is 1.2mm-1.5 mm.
Furthermore, an explosion-proof mechanism is meshed on the stud, the explosion-proof mechanism consists of a base and a pressing sheet, the stud is meshed with a screw hole in the bottom of the base, and the pressing sheet is meshed on an electrode column on the upper surface of the base.
Further, the top surfaces of the end cover inner cylinder and the lantern ring are flush with the surface of the end cover main body, and the distance between the end cover inner cylinder and the lantern ring is 10-14 cm.
The invention provides another technical scheme, which comprises a manufacturing process of a low-pressure explosion-proof integrated end cover, and comprises the following steps:
s1: loading precoated sand into a hot core box of a core shooter to manufacture a precoated sand core, wherein the temperature of the sand core is 220-300 ℃, the precoated sand core is formed by mixing quartz sand and chromite, the chromite accounts for 3-9% of the mass of the quartz sand, adding a catalyst into the quartz sand and the chromite, mixing for 6-10min, adding thermosetting resin, mixing for 10-13min, and discharging sand, wherein the adding amount of the catalyst is 0.4-0.5% of the mass of the quartz sand, and the adding amount of the thermosetting resin is 0.8-1.0% of the mass of the quartz sand;
s2: removing the prepared sand core, assembling and molding the hot core box sand core, pressing the hot core box sand core by using a pressing iron, and then casting, wherein the casting temperature is controlled at 1400-1600 ℃;
s3: and (3) placing the end cover casting after the casting is finished in the room temperature of 28-30 ℃, cooling for 40-50min, and taking out the casting by die parting.
Further, in S1, the catalyst comprises ammonium chloride, ammonium carbonate, urea and deionized water, wherein the mass ratio of each component of the catalyst is 5-10% of ammonium chloride, 10-20% of ammonium carbonate, 20-35% of urea and 35-50% of deionized water.
Further, in S1, the thermosetting resin comprises the following components of an adhesive, a reinforcing agent, a peroxide initiator and a resin reinforcing agent, wherein the mass ratio of the thermosetting resin is 90-95% of the adhesive, 2-3% of the reinforcing agent, 1.2-2% of the peroxide initiator and 2-4% of the resin reinforcing agent.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a low-pressure explosion-proof integrated end cover and a manufacturing process thereof, the distance between an integrally formed end cover inner cylinder and a lantern ring is 10-14cm, the surfaces of the end cover inner cylinder and the lantern ring are flush, when the end cover inner cylinder and the lantern ring are connected with the rest part of a motor shell, a larger gap can not appear, the uneven surface on the contact surface is solved, the part between the lantern ring and the end cover inner cylinder is thinner, a radiating fin is fixed at the thinner part between the lantern ring and the end cover inner cylinder, two rows of radiating holes are also arranged on the radiating fin, the heat on an end cover main body can be quickly radiated, the integral radiating effect is further improved, through an explosion-proof mechanism which is secondarily installed, through a meshing mode, the installation and the disassembly are simpler and quicker, meanwhile, a pressing sheet can rotate around an electrode pole, is connected with a grounded lead, the possible static electricity can be quickly, the method has the advantages that the adverse conditions caused by easy deformation, shrinkage cavity and cracking of the sand core are reduced, the prepared core sand meets the requirements on the use strength of two weeks, the use period of the core sand is prolonged, the strength of the end cover is improved, and the wall thickness and the strength of the integrally formed end cover completely meet the use requirements.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a rear perspective view of the present invention;
fig. 3 is a structural view of the explosion-proof mechanism of the present invention.
FIG. 4 is a process flow diagram of the present invention.
In the figure: 1. an end cap body; 11. a fixed block; 2. an end cover inner barrel; 21. a collar; 211. a grid; 3. an end cover outer cylinder; 31. a heat sink; 4. a rotating shaft connecting hole; 5. a stud; 6. an explosion-proof mechanism; 61. a base; 62. and (6) tabletting.
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.
Referring to fig. 1, a low-pressure explosion-proof integrated end cover comprises an end cover main body 1, an end cover inner cylinder 2 and an end cover outer cylinder 3, wherein a plurality of fixing blocks 11 are distributed on the edge of the end cover main body 1 at equal intervals, two holes are formed in the fixing blocks 11, the formed holes are connected with a mounting part, the end cover inner cylinder 2 and the end cover outer cylinder 3 are respectively symmetrically arranged on two side surfaces of the end cover main body 1, the end cover inner cylinder 2 is connected with the end cover outer cylinder 3, the end cover inner cylinder 2 and the end cover outer cylinder 3 are fixed together, the diameter of the end cover inner cylinder 2 is the same as that of the end cover outer cylinder 3, a through rotating shaft connecting hole 4 is processed at the circle center of the end cover inner cylinder 2 and the end cover outer cylinder 3, a rotating shaft can penetrate through the rotating shaft connecting hole 4, a circle of the end cover inner cylinder 2 and the end cover outer cylinder 3 outside, the width of the sliding groove is 1.2mm-1.5mm, the sliding groove of the sliding groove can increase the friction force, the depth of the sliding groove is convenient for machining, a lantern ring 21 is fixed on the end cover main body 1 at the outer side of the end cover inner cylinder 2, the lantern ring 21 and the end cover inner cylinder 2 are coaxial, the top surfaces of the end cover inner cylinder 2 and the lantern ring 21 are flush with the surface of the end cover main body 1, the distance between the end cover inner cylinder 2 and the lantern ring 21 is 10-14cm, the surfaces of the end cover inner cylinder 2 and the lantern ring 21 are flush, when the sliding groove is connected with the rest part of the motor shell, a larger gap can not appear, the uneven surface on the contact surface is solved, the stud 5 is connected on the end cover main body 1 between the lantern ring 21 and the end cover inner cylinder 2, the grid 211 is distributed on the outer circumferential surface of the lantern ring 21 at equal interval, the grid 211 fixes the, let the heat of end cover inner tube 2 contact part can be conduction of higher speed, the other end of grid 211 is fixed on the inboard step of end cover main part 1, and grid 211 plays the effect of support to the outer wall of lantern ring 21, and when letting its whole integrated into one piece, fastness and leakproofness promote to some extent.
Referring to fig. 2, a plurality of heat dissipation fins 31 are fixed on the outer wall of the end cover outer cylinder 3, because the heat dissipation fins 31 are fixed on the thinner portion between the collar 21 and the end cover inner cylinder 2, two rows of heat dissipation holes are further formed on the heat dissipation fins 31, so that the heat on the end cover main body 1 can be quickly dissipated, the overall heat dissipation effect is further improved, the heat dissipation fins 31 are arranged along the inner diameter direction of the end cover main body 1, the other ends of the heat dissipation fins 31 extend to the outer edge of the end cover main body 1, the end cover main body 1 is made of QT450-10, and the density is3Modulus of elasticity 173Gpa, tensile strength 450 MPa.
Referring to fig. 3, the stud 5 is engaged with the explosion-proof mechanism 6, the explosion-proof mechanism 6 is composed of a base 61 and a pressing sheet 62, the stud 5 is engaged with a screw hole at the bottom of the base 61, the pressing sheet 62 is engaged with an electrode column on the upper surface of the base 61, the explosion-proof mechanism 6 is mounted secondarily, the mounting and the dismounting are simple and fast in an engaging mode, meanwhile, the pressing sheet 62 can rotate around the electrode column and is connected with a grounded lead wire, and possible generated static electricity is rapidly transmitted to the ground, so that the explosion-proof purpose of the explosion-proof mechanism is improved.
Referring to fig. 4, in order to better show the manufacturing process of the low-pressure explosion-proof integrated end cap, the present embodiment provides a manufacturing process of a low-pressure explosion-proof integrated end cap, which includes the following steps:
the method comprises the following steps: loading precoated sand into a hot core box of a core shooting machine, manufacturing a precoated sand core, wherein the temperature of the sand core is 220-300 ℃, the precoated sand core is formed by mixing quartz sand and chromite, the chromite accounts for 3-9% of the mass of the quartz sand, adding a catalyst into the quartz sand and the chromite, mixing for 6-10min, adding thermosetting resin, mixing for 10-13min, and discharging sand, the adding amount of the catalyst is 0.4-0.5% of the mass of the quartz sand, the components of the catalyst comprise ammonium chloride, ammonium carbonate, urea and deionized water, the mass ratio of the components of the catalyst comprises 5-10% of ammonium chloride, 10-20% of ammonium carbonate, 20-35% of urea and 35-50% of deionized water, the adding amount of the thermosetting resin is 0.8-1.0% of the mass of the quartz sand, and the components of the adhesive, the reinforcing agent, the thermosetting resin comprises, by mass, 90-95% of an adhesive, 2-3% of a reinforcing agent, 1.2-2% of a peroxide initiator and 2-4% of a resin reinforcing agent;
step two: removing the prepared sand core, assembling and molding the hot core box sand core, pressing the hot core box sand core by using a weight, and then casting, wherein the casting temperature is controlled at 1400-1600 ℃, the melting point or the adhesive point of the coated sand is raised due to improper control of the coating process of the hot core box, the resin fluidity insert is used, the heating temperature of the sand is high, before water is added for cold quenching, the air is started for cooling to 110 ℃, the curing agent is added, the relative content is improved, and the strength of the molding sand is high;
step three: and (3) placing the end cover casting after the casting is finished in the room temperature of 28-30 ℃, cooling for 40-50min, and taking out the casting by die parting.
After the composition of the precoated sand is improved, the adverse conditions caused by easy deformation, shrinkage cavity and cracking of the sand core are reduced, the prepared core sand meets the requirements on the use strength of two weeks, the use period of the core sand is prolonged, the strength of the end cover is improved, and the wall thickness and the strength of the integrally formed end cover completely meet the use requirements.
In summary, the following steps: the low-voltage explosion-proof integrated end cover and the manufacturing process thereof, the distance between the integrally formed end cover inner cylinder 2 and the lantern ring 21 is 10-14cm, the surfaces of the end cover inner cylinder 2 and the lantern ring 21 are flush, when the low-voltage explosion-proof integrated end cover is connected with the rest parts of a motor shell, a larger gap can not appear, the uneven surface on the contact surface is solved, the part between the lantern ring 21 and the end cover inner cylinder 2 is thinner, the radiating fin 31 is fixed on the thinner part between the lantern ring 21 and the end cover inner cylinder 2, two rows of radiating holes are also arranged on the radiating fin 31, the heat on the end cover main body 1 can be quickly radiated, the integral radiating effect is further improved, the explosion-proof mechanism 6 which is installed secondarily is simple and quick to install and disassemble through a meshing mode, meanwhile, the pressing sheet 62 can rotate around an electrode pole to be connected with a grounded lead wire, and, the anti-explosion purpose of the end cover is improved, the adverse conditions caused by easy deformation, shrinkage cavity and cracking of the sand core are reduced, the configured core sand meets the requirements on the use strength of two weeks, the use period of the core sand is prolonged, the strength of the end cover is improved, and the wall thickness and the strength of the integrally formed end cover completely meet the use requirements.
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 able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. The low-pressure explosion-proof integrated end cover is characterized by comprising an end cover main body (1), an end cover inner cylinder (2) and an end cover outer cylinder (3), wherein a plurality of fixing blocks (11) are distributed on the edge of the end cover main body (1) at equal intervals, and the end cover inner cylinder (2) and the end cover outer cylinder (3) are respectively and symmetrically arranged on two side faces of the end cover main body (1);
a plurality of radiating fins (31) are fixed on the outer wall of the end cover outer cylinder (3), the radiating fins (31) are arranged along the inner diameter direction of the end cover main body (1), and the other ends of the radiating fins (31) extend to the outer edge of the end cover main body (1);
the end cover inner cylinder (2) is connected with the end cover outer cylinder (3), a rotating shaft connecting hole (4) penetrating through the end cover inner cylinder (2) and the end cover outer cylinder (3) is machined in the circle center of the end cover inner cylinder (2), a sleeve ring (21) is fixed on an end cover main body (1) on the outer side of the end cover inner cylinder (2), the sleeve ring (21) and the end cover inner cylinder (2) are coaxial, a stud (5) is connected on the end cover main body (1) between the sleeve ring (21) and the end cover inner cylinder (2), grids (211) are distributed on the outer peripheral face of the sleeve ring (21) at equal intervals, and the other end of each grid (211) is fixed.
2. The low-pressure explosion-proof integrated end cover according to claim 1, wherein a circle of mounting holes are formed in the end cover inner cylinder (2) and the end cover outer cylinder (3) outside the rotating shaft connecting hole (4), a plurality of sections of sliding groove are formed in the surface of the end cover inner cylinder (2) outside the rotating shaft connecting hole (4), and the sliding groove width of the sliding groove is 1.2mm-1.5 mm.
3. A low pressure explosion-proof type integrated end cover according to claim 1, characterized in that the stud (5) is engaged with the explosion-proof mechanism (6), the explosion-proof mechanism (6) is composed of a base (61) and a pressing plate (62), the stud (5) is engaged with a screw hole at the bottom of the base (61), and the pressing plate (62) is engaged with the electrode pole on the upper surface of the base (61).
4. A low pressure explosion-proof type integrated end cover according to claim 1, characterized in that the top surfaces of the end cover inner cylinder (2) and the collar (21) are flush with the surface of the end cover main body (1), and the distance between the end cover inner cylinder (2) and the collar (21) is 10-14 cm.
5. A process for manufacturing a low pressure explosion-proof integral end cap as claimed in claim 1, comprising the steps of:
s1: loading precoated sand into a hot core box of a core shooter to manufacture a precoated sand core, wherein the temperature of the sand core is 220-300 ℃, the precoated sand core is formed by mixing quartz sand and chromite, the chromite accounts for 3-9% of the mass of the quartz sand, adding a catalyst into the quartz sand and the chromite, mixing for 6-10min, adding thermosetting resin, mixing for 10-13min, and discharging sand, wherein the adding amount of the catalyst is 0.4-0.5% of the mass of the quartz sand, and the adding amount of the thermosetting resin is 0.8-1.0% of the mass of the quartz sand;
s2: removing the prepared sand core, assembling and molding the hot core box sand core, pressing the hot core box sand core by using a pressing iron, and then casting, wherein the casting temperature is controlled at 1400-1600 ℃;
s3: and (3) placing the end cover casting after the casting is finished in the room temperature of 28-30 ℃, cooling for 40-50min, and taking out the casting by die parting.
6. The manufacturing process of a low-pressure explosion-proof integrated end cover as claimed in claim 5, wherein in S1, the catalyst comprises ammonium chloride, ammonium carbonate, urea and deionized water, wherein the mass ratio of the components of the catalyst is 5-10% of ammonium chloride, 10-20% of ammonium carbonate, 20-35% of urea and 35-50% of deionized water.
7. The manufacturing process of a low-pressure explosion-proof integrated end cover as claimed in claim 5, wherein in S1, the thermosetting resin comprises the following components, by mass, 90-95% of the adhesive, 2-3% of the reinforcing agent, 1.2-2% of the peroxide initiator and 2-4% of the resin reinforcing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010388289.4A CN111511140A (en) | 2020-05-09 | 2020-05-09 | Low-pressure explosion-proof integrated end cover and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010388289.4A CN111511140A (en) | 2020-05-09 | 2020-05-09 | Low-pressure explosion-proof integrated end cover and manufacturing process thereof |
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| CN111511140A true CN111511140A (en) | 2020-08-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951591A (en) * | 2022-06-02 | 2022-08-30 | 太仓市荟轩机械有限公司 | Die for preventing inner hole wall of motor end cover casting from being die-cast and shrunk and using method |
| CN115765271A (en) * | 2022-12-10 | 2023-03-07 | 连云港宝迪汽车配件制造有限公司 | Insulated sealed type engine end cover and manufacturing process thereof |
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| CN202371260U (en) * | 2011-10-14 | 2012-08-08 | 天津百利二通机械有限公司 | Explosion-proof inner cavity sealing structure for junction box of valve electric device |
| CN105964907A (en) * | 2016-06-15 | 2016-09-28 | 安徽省含山县林头振皖铸造厂 | Hot-core box precoated sand casting technology of motor end cover |
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| CN114951591B (en) * | 2022-06-02 | 2023-11-24 | 太仓市荟轩机械有限公司 | Die for preventing inner hole wall of motor end cover casting from compression casting shrinkage cavity and use method |
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