CN105256256A - Production process of compression-resistant anti-corrosion expansion joint with thermally conductive insulating property - Google Patents
Production process of compression-resistant anti-corrosion expansion joint with thermally conductive insulating property Download PDFInfo
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- CN105256256A CN105256256A CN201510765310.7A CN201510765310A CN105256256A CN 105256256 A CN105256256 A CN 105256256A CN 201510765310 A CN201510765310 A CN 201510765310A CN 105256256 A CN105256256 A CN 105256256A
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Abstract
The invention discloses a production process of a compression-resistant anti-corrosion expansion joint with a thermally conductive insulating property. The production process comprises the following steps: billet blanking, forging, heat treatment, rough machining, inner-layer coating and surface coating; an F316/316L material is selected as a billet, which contains the following chemical components in percentage by mass: 0.25-0.35% of C, 0.85-1.25% of Si, 1.85-2.95% of Mn, 0.04-0.05% of P, 11-13% of Ni, 16.5-17.5% of Cr, 0.15-0.20% of Nb, 0.85-0.95% of Cu, 0.08-0.11% of N, 2.15-2.95% of Mo, 0.2-0.3% of Al, 0.025-0.035% of S, 0.03-0.04% of Ti, 0.02-0.03% of V, 0.002-0.004% of B, 3-5% of lanthanum series rare earths and the balance of Fe; the lanthanum series rare earths are composed of the following components in percentage by mass: 20-24% of lanthanum, 20-25% of cerium, 14-16% of samarium, 14-16% of neodymium, 2-4% of gadolinium, 16-18% of praseodymium, 5-6% of dysprosium and 1-3% of other lanthanum series elements, and the sum of the various components is 100%.
Description
Technical field
The present invention relates to a kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance.
Background technology
Because the chemical composition of F316/316L material is consistent with F316L, and intensity is consistent with F316, so just both has good intergranular corrosion resistance performance and good mechanical property; In practical application, flange is as the web member of pipeline, so under worst cold case condition, F316/316L material flange just becomes desirable product; But, because F316/316L material has the characteristic of bi-material concurrently, in actual production, be not easy to forging, therefore the forging of the flange of F316/316L material just becomes an exploitation focus in industry.
Because China is more late to the corrosion understanding of concrete member under high etching condition, from design department to construction department, use department all do not cause enough attention.And; the protective cover of the type grows up on the basis of steel construction protection coating; its weak point is not fully take into account nonmetal and difference that is metal corrosion condition; its use is not according to different use occasions classification simultaneously, makes tailor-(made) coating for special position.Therefore, researching and developing concrete anti-corrosive paint under high etching condition will be one of the prior development direction of China's Marine Antifouling Paint.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provides a kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance.
In order to solve above technical problem, the invention provides a kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance, comprising the steps: steel billet blanking-forging-thermal treatment-mechanical roughing-internal layer coating-surface-coated;
Select blank to be F316/316L material, the mass percent of its chemical composition is: C:0.25-0.35%, Si:0.85-1.25%, Mn:1.85-2.95%, P:0.04-0.05%, Ni:11-13%, Cr:16.5-17.5%, Nb:0.15-0.20%, Cu:0.85-0.95%, N:0.08-0.11%, Mo::2.15-2.95%, Al:0.2-0.3%, S:0.025-0.035%, Ti:0.03-0.04%, V:0.02-0.03%, B:0.002-0.004%, lanthanide rare: 3-5%, surplus is Fe;
The constituent mass per-cent of lanthanide rare is: lanthanum: 20-24%, cerium: 20-25%, samarium: 14-16%, neodymium: 14-16%, gadolinium: 2-4%, praseodymium: 16-18%, dysprosium: 5-6%, all the other lanthanon: 1-3%, and above each component sum is 100%;
Thermal treatment: thermal treatment adopts solution treatment, equipment for Heating Processing adopts bell furnace, is specially:
Adopt three sections of heating, first paragraph Heating temperature is 700-750 DEG C, after temperature, be incubated 10-15min, and second segment Heating temperature is 850-880 DEG C, after temperature, be incubated 35-40min, and the 3rd section of Heating temperature is 1010-1150 DEG C, after temperature, be incubated 15-18min;
During cooling controlled cooling model speed be 5.5-6 DEG C per second, ensure forging can be cooled to 40 DEG C in 3 minutes;
In internal layer coating, the preparation process of coating is:
Step 1, with parts by weight, adds aqueous ethanolic solution 10-20 part, heated and stirred by silane coupling agent 1-4 part, nitrocalcite 2-5 part, Resorcinol 1-6 part, nickelous acetate 3-5 part, adds AlN2-7 part, ultrasonic disperse, filters, and dries, obtains mixture A;
Step 2, with parts by weight, by epoxy resin 4-10 part, DMAA 2-6 part, Starso 1-6 part, 124 Triazole 2-7 part, trolamine 1-6 part, the mixing of Yelkin TTS 0.8-3.5 part, at CO
2stirred under argon, obtains mixture B;
Step 3, mixed by step 1 gained mixture A and step 2 gained mixture B, heated and stirred under vacuum, is cooled to room temperature, solidifies and be ground to fineness to reach 40-60 μm, to obtain final product;
In surface-coated, the preparation process of coating is:
Step a, with parts by weight, water-borne acrylic resin 15-30 part, glass flake 2-6 part, hydrated magnesium silicate 1-5 part, ethylene glycol ethyl ether 3-6 part, nano barium sulfate 2-5 part are added to respectively in stirrer, 1000-1200rpm stirs 20-50min, obtains mixture C;
Step b, with parts by weight, in step a gained mixture C, add Isooctyl acrylate monomer 3-7 part, iron mica 2-5 part, polyamide wax 3-6 part, resol 2-7 part, sodium allyl sulfonate 1-4 part, 600-900rpm stirs 30-60min, obtains mixture D;
Step c, with parts by weight, adds silicon sol 4-7 part, filler 2-8 part, softening agent 1-6 part, pigment 3-7 part, water 5-10 part while stirring, is ground to fineness and reaches 40-60 μm, to obtain final product in step b gained mixture D.
The technical scheme that the present invention limits further is:
Further, the aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 1, Heating temperature is 40-60 DEG C.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 1, ultrasonic frequency is 20-30kHz.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 2, stir speed (S.S.) is 300-500rpm.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 3, vacuum tightness is 0.08-0.1MPa.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 3, Heating temperature is 50-80 DEG C.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, in step 3, set time is 4-7h.
The aforesaid production technique with heat conductive insulating pressure-resistant corrosion-resisting expansion joint, also needs when mixing in step 3 to add ZnOw 3-9 part.
The invention has the beneficial effects as follows: the suspension and support that the present invention produces, its tensile strength >=520MPa; Extend >=38%; Brinell hardness 180 >=HB >=140;-196 DEG C of ballistic works: cross side swell increment is greater than 0.38mm; Meanwhile, the present invention has excellent sea water corrosion resistant, and salt fog resistance can reach more than 2000 hours, and the solution of resistance to 10%NaOH can reach more than 30 days, and resistance to artificial seawater performance can reach more than 4200 hours.
Embodiment
embodiment 1
A kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance that the present embodiment provides, comprises the steps: steel billet blanking-forging-thermal treatment-mechanical roughing-internal layer coating-surface-coated;
Select blank to be F316/316L material, the mass percent of its chemical composition is: C:0.25-0.35%, Si:0.85-1.25%, Mn:1.85-2.95%, P:0.04-0.05%, Ni:11-13%, Cr:16.5-17.5%, Nb:0.15-0.20%, Cu:0.85-0.95%, N:0.08-0.11%, Mo::2.15-2.95%, Al:0.2-0.3%, S:0.025-0.035%, Ti:0.03-0.04%, V:0.02-0.03%, B:0.002-0.004%, lanthanide rare: 3-5%, surplus is Fe;
The constituent mass per-cent of lanthanide rare is: lanthanum: 20-24%, cerium: 20-25%, samarium: 14-16%, neodymium: 14-16%, gadolinium: 2-4%, praseodymium: 16-18%, dysprosium: 5-6%, all the other lanthanon: 1-3%, and above each component sum is 100%;
Thermal treatment: thermal treatment adopts solution treatment, equipment for Heating Processing adopts bell furnace, is specially:
Adopt three sections of heating, first paragraph Heating temperature is 700-750 DEG C, after temperature, be incubated 10-15min, and second segment Heating temperature is 850-880 DEG C, after temperature, be incubated 35-40min, and the 3rd section of Heating temperature is 1010-1150 DEG C, after temperature, be incubated 15-18min;
During cooling controlled cooling model speed be 5.5-6 DEG C per second, ensure forging can be cooled to 40 DEG C in 3 minutes;
In internal layer coating, the preparation process of coating is:
Step 1, with parts by weight, adds aqueous ethanolic solution 10-20 part, heated and stirred by silane coupling agent 1-4 part, nitrocalcite 2-5 part, Resorcinol 1-6 part, nickelous acetate 3-5 part, adds AlN2-7 part, ultrasonic disperse, filters, and dries, obtains mixture A;
Step 2, with parts by weight, by epoxy resin 4-10 part, DMAA 2-6 part, Starso 1-6 part, 124 Triazole 2-7 part, trolamine 1-6 part, the mixing of Yelkin TTS 0.8-3.5 part, at CO
2stirred under argon, obtains mixture B;
Step 3, mixed by step 1 gained mixture A and step 2 gained mixture B, heated and stirred under vacuum, is cooled to room temperature, solidifies and be ground to fineness to reach 40-60 μm, to obtain final product;
In surface-coated, the preparation process of coating is:
Step a, with parts by weight, water-borne acrylic resin 15-30 part, glass flake 2-6 part, hydrated magnesium silicate 1-5 part, ethylene glycol ethyl ether 3-6 part, nano barium sulfate 2-5 part are added to respectively in stirrer, 1000-1200rpm stirs 20-50min, obtains mixture C;
Step b, with parts by weight, in step a gained mixture C, add Isooctyl acrylate monomer 3-7 part, iron mica 2-5 part, polyamide wax 3-6 part, resol 2-7 part, sodium allyl sulfonate 1-4 part, 600-900rpm stirs 30-60min, obtains mixture D;
Step c, with parts by weight, adds silicon sol 4-7 part, filler 2-8 part, softening agent 1-6 part, pigment 3-7 part, water 5-10 part while stirring, is ground to fineness and reaches 40-60 μm, to obtain final product in step b gained mixture D.
In step 1, Heating temperature is 40 DEG C; In step 1, ultrasonic frequency is 30kHz; In rapid 2, stir speed (S.S.) is 500rpm; In step 3, vacuum tightness is 0.08MPa; In step 3, Heating temperature is 80 DEG C; In step 3, set time is 4h; Also need when mixing in step 3 to add ZnOw 3 parts.
embodiment 2
A kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance that the present embodiment provides, comprises the steps: steel billet blanking-forging-thermal treatment-mechanical roughing-internal layer coating-surface-coated;
Select blank to be F316/316L material, the mass percent of its chemical composition is: C:0.25-0.35%, Si:0.85-1.25%, Mn:1.85-2.95%, P:0.04-0.05%, Ni:11-13%, Cr:16.5-17.5%, Nb:0.15-0.20%, Cu:0.85-0.95%, N:0.08-0.11%, Mo::2.15-2.95%, Al:0.2-0.3%, S:0.025-0.035%, Ti:0.03-0.04%, V:0.02-0.03%, B:0.002-0.004%, lanthanide rare: 3-5%, surplus is Fe;
The constituent mass per-cent of lanthanide rare is: lanthanum: 20-24%, cerium: 20-25%, samarium: 14-16%, neodymium: 14-16%, gadolinium: 2-4%, praseodymium: 16-18%, dysprosium: 5-6%, all the other lanthanon: 1-3%, and above each component sum is 100%;
Thermal treatment: thermal treatment adopts solution treatment, equipment for Heating Processing adopts bell furnace, is specially:
Adopt three sections of heating, first paragraph Heating temperature is 700-750 DEG C, after temperature, be incubated 10-15min, and second segment Heating temperature is 850-880 DEG C, after temperature, be incubated 35-40min, and the 3rd section of Heating temperature is 1010-1150 DEG C, after temperature, be incubated 15-18min;
During cooling controlled cooling model speed be 5.5-6 DEG C per second, ensure forging can be cooled to 40 DEG C in 3 minutes;
In internal layer coating, the preparation process of coating is:
Step 1, with parts by weight, adds aqueous ethanolic solution 10-20 part, heated and stirred by silane coupling agent 1-4 part, nitrocalcite 2-5 part, Resorcinol 1-6 part, nickelous acetate 3-5 part, adds AlN2-7 part, ultrasonic disperse, filters, and dries, obtains mixture A;
Step 2, with parts by weight, by epoxy resin 4-10 part, DMAA 2-6 part, Starso 1-6 part, 124 Triazole 2-7 part, trolamine 1-6 part, the mixing of Yelkin TTS 0.8-3.5 part, at CO
2stirred under argon, obtains mixture B;
Step 3, mixed by step 1 gained mixture A and step 2 gained mixture B, heated and stirred under vacuum, is cooled to room temperature, solidifies and be ground to fineness to reach 40-60 μm, to obtain final product;
In surface-coated, the preparation process of coating is:
Step a, with parts by weight, water-borne acrylic resin 15-30 part, glass flake 2-6 part, hydrated magnesium silicate 1-5 part, ethylene glycol ethyl ether 3-6 part, nano barium sulfate 2-5 part are added to respectively in stirrer, 1000-1200rpm stirs 20-50min, obtains mixture C;
Step b, with parts by weight, in step a gained mixture C, add Isooctyl acrylate monomer 3-7 part, iron mica 2-5 part, polyamide wax 3-6 part, resol 2-7 part, sodium allyl sulfonate 1-4 part, 600-900rpm stirs 30-60min, obtains mixture D;
Step c, with parts by weight, adds silicon sol 4-7 part, filler 2-8 part, softening agent 1-6 part, pigment 3-7 part, water 5-10 part while stirring, is ground to fineness and reaches 40-60 μm, to obtain final product in step b gained mixture D.
In step 1, Heating temperature is 60 DEG C; In step 1, ultrasonic frequency is 20kHz; In rapid 2, stir speed (S.S.) is 500rpm; In step 3, vacuum tightness is 0.08MPa; In step 3, Heating temperature is 80 DEG C; In step 3, set time is 4h; Also need when mixing in step 3 to add ZnOw 9 parts.
embodiment 3
A kind of production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance that the present embodiment provides, comprises the steps: steel billet blanking-forging-thermal treatment-mechanical roughing-internal layer coating-surface-coated;
Select blank to be F316/316L material, the mass percent of its chemical composition is: C:0.25-0.35%, Si:0.85-1.25%, Mn:1.85-2.95%, P:0.04-0.05%, Ni:11-13%, Cr:16.5-17.5%, Nb:0.15-0.20%, Cu:0.85-0.95%, N:0.08-0.11%, Mo::2.15-2.95%, Al:0.2-0.3%, S:0.025-0.035%, Ti:0.03-0.04%, V:0.02-0.03%, B:0.002-0.004%, lanthanide rare: 3-5%, surplus is Fe;
The constituent mass per-cent of lanthanide rare is: lanthanum: 20-24%, cerium: 20-25%, samarium: 14-16%, neodymium: 14-16%, gadolinium: 2-4%, praseodymium: 16-18%, dysprosium: 5-6%, all the other lanthanon: 1-3%, and above each component sum is 100%;
Thermal treatment: thermal treatment adopts solution treatment, equipment for Heating Processing adopts bell furnace, is specially:
Adopt three sections of heating, first paragraph Heating temperature is 700-750 DEG C, after temperature, be incubated 10-15min, and second segment Heating temperature is 850-880 DEG C, after temperature, be incubated 35-40min, and the 3rd section of Heating temperature is 1010-1150 DEG C, after temperature, be incubated 15-18min;
During cooling controlled cooling model speed be 5.5-6 DEG C per second, ensure forging can be cooled to 40 DEG C in 3 minutes;
In internal layer coating, the preparation process of coating is:
Step 1, with parts by weight, adds aqueous ethanolic solution 10-20 part, heated and stirred by silane coupling agent 1-4 part, nitrocalcite 2-5 part, Resorcinol 1-6 part, nickelous acetate 3-5 part, adds AlN2-7 part, ultrasonic disperse, filters, and dries, obtains mixture A;
Step 2, with parts by weight, by epoxy resin 4-10 part, DMAA 2-6 part, Starso 1-6 part, 124 Triazole 2-7 part, trolamine 1-6 part, the mixing of Yelkin TTS 0.8-3.5 part, at CO
2stirred under argon, obtains mixture B;
Step 3, mixed by step 1 gained mixture A and step 2 gained mixture B, heated and stirred under vacuum, is cooled to room temperature, solidifies and be ground to fineness to reach 40-60 μm, to obtain final product;
In surface-coated, the preparation process of coating is:
Step a, with parts by weight, water-borne acrylic resin 15-30 part, glass flake 2-6 part, hydrated magnesium silicate 1-5 part, ethylene glycol ethyl ether 3-6 part, nano barium sulfate 2-5 part are added to respectively in stirrer, 1000-1200rpm stirs 20-50min, obtains mixture C;
Step b, with parts by weight, in step a gained mixture C, add Isooctyl acrylate monomer 3-7 part, iron mica 2-5 part, polyamide wax 3-6 part, resol 2-7 part, sodium allyl sulfonate 1-4 part, 600-900rpm stirs 30-60min, obtains mixture D;
Step c, with parts by weight, adds silicon sol 4-7 part, filler 2-8 part, softening agent 1-6 part, pigment 3-7 part, water 5-10 part while stirring, is ground to fineness and reaches 40-60 μm, to obtain final product in step b gained mixture D.
In step 1, Heating temperature is 50 DEG C; In step 1, ultrasonic frequency is 25kHz; In rapid 2, stir speed (S.S.) is 400rpm; In step 3, vacuum tightness is 0.09MPa; In step 3, Heating temperature is 65 DEG C; In step 3, set time is 5h; Also need when mixing in step 3 to add ZnOw 8 parts.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (8)
1. there is a production technique for the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance, it is characterized in that, comprise the steps: steel billet blanking-forging-thermal treatment-mechanical roughing-internal layer coating-surface-coated;
Select blank to be F316/316L material, the mass percent of its chemical composition is: C:0.25-0.35%, Si:0.85-1.25%, Mn:1.85-2.95%, P:0.04-0.05%, Ni:11-13%, Cr:16.5-17.5%, Nb:0.15-0.20%, Cu:0.85-0.95%, N:0.08-0.11%, Mo::2.15-2.95%, Al:0.2-0.3%, S:0.025-0.035%, Ti:0.03-0.04%, V:0.02-0.03%, B:0.002-0.004%, lanthanide rare: 3-5%, surplus is Fe;
The constituent mass per-cent of described lanthanide rare is: lanthanum: 20-24%, cerium: 20-25%, samarium: 14-16%, neodymium: 14-16%, gadolinium: 2-4%, praseodymium: 16-18%, dysprosium: 5-6%, all the other lanthanon: 1-3%, and above each component sum is 100%;
Thermal treatment: thermal treatment adopts solution treatment, equipment for Heating Processing adopts bell furnace, is specially:
Adopt three sections of heating, first paragraph Heating temperature is 700-750 DEG C, after temperature, be incubated 10-15min, and second segment Heating temperature is 850-880 DEG C, after temperature, be incubated 35-40min, and the 3rd section of Heating temperature is 1010-1150 DEG C, after temperature, be incubated 15-18min;
During cooling controlled cooling model speed be 5.5-6 DEG C per second, ensure forging can be cooled to 40 DEG C in 3 minutes;
In described internal layer coating, the preparation process of coating is:
Step 1, with parts by weight, adds aqueous ethanolic solution 10-20 part, heated and stirred by silane coupling agent 1-4 part, nitrocalcite 2-5 part, Resorcinol 1-6 part, nickelous acetate 3-5 part, adds AlN2-7 part, ultrasonic disperse, filters, and dries, obtains mixture A;
Step 2, with parts by weight, by epoxy resin 4-10 part, DMAA 2-6 part, Starso 1-6 part, 124 Triazole 2-7 part, trolamine 1-6 part, the mixing of Yelkin TTS 0.8-3.5 part, at CO
2stirred under argon, obtains mixture B;
Step 3, mixed by step 1 gained mixture A and step 2 gained mixture B, heated and stirred under vacuum, is cooled to room temperature, solidifies and be ground to fineness to reach 40-60 μm, to obtain final product;
In described surface-coated, the preparation process of coating is:
Step a, with parts by weight, water-borne acrylic resin 15-30 part, glass flake 2-6 part, hydrated magnesium silicate 1-5 part, ethylene glycol ethyl ether 3-6 part, nano barium sulfate 2-5 part are added to respectively in stirrer, 1000-1200rpm stirs 20-50min, obtains mixture C;
Step b, with parts by weight, in step a gained mixture C, add Isooctyl acrylate monomer 3-7 part, iron mica 2-5 part, polyamide wax 3-6 part, resol 2-7 part, sodium allyl sulfonate 1-4 part, 600-900rpm stirs 30-60min, obtains mixture D;
Step c, with parts by weight, adds silicon sol 4-7 part, filler 2-8 part, softening agent 1-6 part, pigment 3-7 part, water 5-10 part while stirring, is ground to fineness and reaches 40-60 μm, to obtain final product in step b gained mixture D.
2. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 1, Heating temperature is 40-60 DEG C.
3. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 1, ultrasonic frequency is 20-30kHz.
4. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 2, stir speed (S.S.) is 300-500rpm.
5. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 3, vacuum tightness is 0.08-0.1MPa.
6. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 3, Heating temperature is 50-80 DEG C.
7. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: in step 3, set time is 4-7h.
8. the production technique with the pressure-resistant corrosion-resisting expansion joint of heat conductive insulating performance according to claim 1, is characterized in that: also need when mixing in step 3 to add ZnOw 3-9 part.
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| CN106589489A (en) * | 2016-10-28 | 2017-04-26 | 无锡市永兴金属软管有限公司 | Expansion joint and preparation method thereof |
| CN106634436A (en) * | 2016-12-21 | 2017-05-10 | 苏州劲元油压机械有限公司 | Production process of impact-resistant corrosion-resistant check valve |
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| CN112281070A (en) * | 2020-10-30 | 2021-01-29 | 中泽电气科技有限公司 | Method for preparing anti-cracking power distribution cabinet door by using 304 austenitic stainless steel material |
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