CN105199363A - Pressure-resistant sealing gasket for casting - Google Patents
Pressure-resistant sealing gasket for casting Download PDFInfo
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- CN105199363A CN105199363A CN201510651901.1A CN201510651901A CN105199363A CN 105199363 A CN105199363 A CN 105199363A CN 201510651901 A CN201510651901 A CN 201510651901A CN 105199363 A CN105199363 A CN 105199363A
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Abstract
The invention relates to the field of sealing gaskets and particularly relates to a pressure-resistant sealing gasket for casting. The pressure-resistant sealing gasket is characterized by being prepared from the following raw materials in parts by weight: 70-90 parts of chlorohydrine rubber, 40-60 parts of triallylisocyanurate, 20-30 parts of mixed fibers, 10-16 parts of reinforced powder, 6-7 parts of hexamethylenediamine carbamate, 1-2 parts of a plasticizer, 0.5-1 part of an antioxidant, 2-3 parts of an anti-aging agent, 1-3 parts of an accelerant, 6-12 parts of m-xylylenediamine, 0.5-0.8 part of an activating agent, 1-2 parts of castor oil and 1-2 parts of paraffin. The pressure-resistant sealing gasket has favorable elastic property and pressure resistance and still remains favorable sealing performance when being kept at high pressure for a long term.
Description
Technical field:
The present invention relates to gasket field, relate to a kind of compressive sealed pad cast in particular.
Background technology:
Gasket generally will note following condition: high resilience and rebound resilience; Suitable physical strength, comprise tensile strength, elongation and tearing toughness etc., stable performance, not easily swelling in media as well, thermal pinch effect (joule effect) is little, easy machine-shaping, and accurate size can be kept, do not corrode contact surface, not pollution medium etc., in current Foundry Production, relate to encapsulation process, just need to use gasket, in casting, the general weight of equipment such as mould or sandbox is heavier, and gasket bears very large weight, after a long time use, gasket can be out of shape, and elastic performance declines, and sealing effectiveness reduces.
Summary of the invention:
Technical problem to be solved by this invention is that overcoming existing technological deficiency provides a kind of casting refractory seals pad.
Technical problem to be solved by this invention adopts following technical scheme to realize:
The compressive sealed pad cast, is characterized in that the raw material comprising following weight part is formed: 70-90 part chlorohydrin rubber, 40-60 part triallylcyanurate, 20-30 part blend fiber, 10-16 part enhancing powder, 6-7 part hexyl diamino carbamate, 1-2 part softening agent, 0.5-1 part oxidation inhibitor, 2-3 part anti-aging agent, 1-3 part promotor, 6-12 part are m-xylene diamine, 0.5-0.8 part promoting agent, 1-2 part Viscotrol C, 1-2 part paraffin.
Further, described blend fiber comprises the component of weight part of 50-60 part polycrystalline mullite fibre, 10-15 part mineral wool fibre, 6-11 part aluminum silicate fiber, 12-18 part boron nitride fibre, 15-24 part silicon carbide fiber, 3-7 part zirconium fiber.
Further, described enhancing powder comprises the component of weight part of 10-12 part quartz sand powder, 3-4 part phosphatization Si powder, 2-3 part iron filings, 1-2 part carbon black, 5-6 part sulfurated lime, 6-7 part calcium carbonate, 0.5-1 part rosin powder, and the interpolation of rosin powder improves the oilness strengthening powder.
A manufacture method for the compressive sealed pad cast, is characterized in that comprising the following steps:
(1) chlorohydrin rubber, triallylcyanurate are put into Banbury mixer, obtain mixture;
(2) mixture and blend fiber, enhancing powder, hexyl diamino carbamate, softening agent, antiager, Viscotrol C, paraffin mixing are put into mill and carried out out refining;
(3) in mill, add remaining raw material and then open refining, by begin to pratise shaping after rubber put into the forming mould of vulcanizing equipment, sulfidizing is carried out to rubber;
(4) product is processed, namely obtain gasket.
Further, in step (3), be 100-120Kgf/cm2 at pressure, temperature is under the condition of 225-230 DEG C, carries out sulfidizing to rubber, and curing time is 400-460 second.
The present invention adds and strengthens the intensity that powder can improve gasket, the blend fiber of adding can improve the elastic performance of gasket, improve crushing resistance, Viscotrol C and paraffin can allow enhancing powder and blend fiber better incorporate in gasket, the present invention has good elasticity performance and crushing resistance, under long weight, still keep good sealing property.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1: a kind of compressive sealed pad cast, the raw material that it is characterized in that comprising following weight part is formed: 70 parts of chlorohydrin rubbers, 40 parts of triallylcyanurate, 20 parts of blend fiber, 10 parts strengthen powder, 6 parts of hexyl diamino carbamates, 1 part of softening agent, 0.5 part of oxidation inhibitor, 2 parts of anti-aging agent, 1 part of promotor, 6 parts be m-xylene diamine, 0.5 portion of promoting agent, 1 part of Viscotrol C, 1 part of paraffin.
Blend fiber comprises the component of weight part of 50 parts of polycrystalline mullite fibres, 10 parts of mineral wool fibres, 6 parts of aluminum silicate fibers, 12 parts of boron nitride fibres, 15 parts of silicon carbide fibers, 3 parts of zirconium fibers.
Strengthen the component of weight part that powder comprises 10 parts of quartz sand powder, 3 parts of phosphatization Si powder, 2 parts of iron filings, 1 part of carbon black, 5 parts of sulfurated limes, 6 parts of calcium carbonate, 0.5 part of rosin powder.
Embodiment 2: a kind of compressive sealed pad cast, the raw material that it is characterized in that comprising following weight part is formed: 90 parts of chlorohydrin rubbers, 60 parts of triallylcyanurate, 30 parts of blend fiber, 16 parts strengthen powder, 7 parts of hexyl diamino carbamates, 2 parts of softening agent, 1 part of oxidation inhibitor, 3 parts of anti-aging agent, 3 parts of promotor, 12 parts be m-xylene diamine, 0.8 portion of promoting agent, 2 parts of Viscotrol C, 2 parts of paraffin.
Blend fiber comprises the component of weight part of 60 parts of polycrystalline mullite fibres, 15 parts of mineral wool fibres, 11 parts of aluminum silicate fibers, 18 parts of boron nitride fibres, 24 parts of silicon carbide fibers, 7 parts of zirconium fibers.
Strengthen the component of weight part that powder comprises 12 parts of quartz sand powder, 4 parts of phosphatization Si powder, 3 parts of iron filings, 2 parts of carbon blacks, 6 parts of sulfurated limes, 7 parts of calcium carbonate, 1 part of rosin powder.
A manufacture method for the compressive sealed pad cast, is characterized in that comprising the following steps:
(1) chlorohydrin rubber, triallylcyanurate are put into Banbury mixer, obtain mixture;
(2) mixture and blend fiber, enhancing powder, hexyl diamino carbamate, softening agent, antiager, Viscotrol C, paraffin mixing are put into mill and carried out out refining;
(3) in mill, add remaining raw material and then open refining, by begin to pratise shaping after rubber put into the forming mould of vulcanizing equipment, sulfidizing is carried out to rubber;
(4) product is processed, namely obtain gasket.
In step (3), be 100-120Kgf/cm2 at pressure, temperature is under the condition of 225-230 DEG C, carries out sulfidizing to rubber, and curing time is 400-460 second.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the compressive sealed pad cast, is characterized in that the raw material comprising following weight part is formed: 70-90 part chlorohydrin rubber, 40-60 part triallylcyanurate, 20-30 part blend fiber, 10-16 part enhancing powder, 6-7 part hexyl diamino carbamate, 1-2 part softening agent, 0.5-1 part oxidation inhibitor, 2-3 part anti-aging agent, 1-3 part promotor, 6-12 part are m-xylene diamine, 0.5-0.8 part promoting agent, 1-2 part Viscotrol C, 1-2 part paraffin.
2. a kind of compressive sealed pad cast according to claim 1, is characterized in that: described blend fiber comprises the component of weight part of 50-60 part polycrystalline mullite fibre, 10-15 part mineral wool fibre, 6-11 part aluminum silicate fiber, 12-18 part boron nitride fibre, 15-24 part silicon carbide fiber, 3-7 part zirconium fiber.
3. a kind of compressive sealed pad cast according to claim 1, is characterized in that: described enhancing powder comprises the component of weight part of 10-12 part quartz sand powder, 3-4 part phosphatization Si powder, 2-3 part iron filings, 1-2 part carbon black, 5-6 part sulfurated lime, 6-7 part calcium carbonate, 0.5-1 part rosin powder.
4. a manufacture method for the compressive sealed pad cast, is characterized in that comprising the following steps:
(1) chlorohydrin rubber, triallylcyanurate are put into Banbury mixer, obtain mixture;
(2) mixture and blend fiber, enhancing powder, hexyl diamino carbamate, softening agent, antiager, Viscotrol C, paraffin mixing are put into mill and carried out out refining;
(3) in mill, add remaining raw material and then open refining, by begin to pratise shaping after rubber put into the forming mould of vulcanizing equipment, sulfidizing is carried out to rubber;
(4) product is processed, namely obtain gasket.
5. the manufacture method of a kind of compressive sealed pad cast according to claim 4, it is characterized in that: in step (3), is 100-120Kgf/cm2 at pressure, and temperature is under the condition of 225-230 DEG C, carry out sulfidizing to rubber, curing time is 400-460 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651901.1A CN105199363A (en) | 2015-10-08 | 2015-10-08 | Pressure-resistant sealing gasket for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651901.1A CN105199363A (en) | 2015-10-08 | 2015-10-08 | Pressure-resistant sealing gasket for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105199363A true CN105199363A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510651901.1A Pending CN105199363A (en) | 2015-10-08 | 2015-10-08 | Pressure-resistant sealing gasket for casting |
Country Status (1)
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| CN (1) | CN105199363A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942779A (en) * | 2012-10-11 | 2013-02-27 | 安徽普源分离机械制造有限公司 | Sealing ring of floating head type heat exchanger flange face |
| CN103571210A (en) * | 2013-09-30 | 2014-02-12 | 芜湖航天特种电缆厂 | Refractory flame-retardant silicone rubber sheath material for cables and preparation method thereof |
-
2015
- 2015-10-08 CN CN201510651901.1A patent/CN105199363A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942779A (en) * | 2012-10-11 | 2013-02-27 | 安徽普源分离机械制造有限公司 | Sealing ring of floating head type heat exchanger flange face |
| CN103571210A (en) * | 2013-09-30 | 2014-02-12 | 芜湖航天特种电缆厂 | Refractory flame-retardant silicone rubber sheath material for cables and preparation method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |