CN104163959A - Sealing ring for flexible interface of cast iron pipe, and preparation method thereof - Google Patents
Sealing ring for flexible interface of cast iron pipe, and preparation method thereof Download PDFInfo
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- CN104163959A CN104163959A CN201410243382.0A CN201410243382A CN104163959A CN 104163959 A CN104163959 A CN 104163959A CN 201410243382 A CN201410243382 A CN 201410243382A CN 104163959 A CN104163959 A CN 104163959A
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Abstract
The invention relates to a sealing ring for a flexible interface of a cast iron pipe. The sealing ring for the flexible interface of the cast iron pipe is composed of the following components by weight: 40-60 parts of chloroprene rubber, 15-35 parts of butadiene-styrene rubber, 15-35 parts of ethylene-propylene rubber, 1-10 parts of zinc oxide, 0.5-2 parts of stearic acid, 30-50 parts of carbon black, 5-15 parts of a softening agent and 1-8 parts of a vulcanizing agent. A preparation method of the sealing ring for the flexible interface of the cast iron pipe comprises the steps of mixing the chloroprene rubber, butadiene-styrene rubber, zinc oxide, stearic acid, carbon black, softening agent and vulcanizing agent and then vulcanizing through a vulcanizing production line to obtain a masterbatch A; mixing the ethylene-propylene rubber, zinc oxide, stearic acid, carbon black, softening agent and vulcanizing agent and then vulcanizing through the vulcanizing production line to obtain a masterbatch B; blending the above masterbatch A and masterbatch B; carrying out compression molding at a pressure of 10-30 MPa and a heating temperature of 380-400 DEG C; and cooling to a room temperature to obtain a finished product of the sealing ring. The sealing ring provided by the invention has good mechanical properties, acid and alkali resistance and oil resistance; a relatively long service life of the sealing ring is guaranteed; and maintenance cost of the pipe is reduced.
Description
Technical field
The present invention relates to a kind of pipeline flexible interface connector sealing-ring, particularly a kind of cast iron pipe flexible interface sealing-ring and preparation method thereof.
Background technology
Cast-iron pipe is mainly used in draining, and cast-iron pipe interface for damping be easily connected, more and more be unable to do without tube bank (web member) product.The sealing-ring using in tube bank product plays vital effect to the sealing of pipeline.
Raising along with people's living standard, the material that contains chemical feedstocks is used widely by people, and these chemical substances are more and more higher to the requirement of sealing-ring performance, are not only draining, vibration resistance, more require acidproof, alkaline-resisting, oil resistant, ageing-resistant, to reach longer work-ing life.And existing sealing-ring is when the comparatively severe pipeline environment of reply, its work-ing life is shorter, changes frequently the increase that causes pipeline maintenance cost.
Summary of the invention
The object of the present invention is to provide that a kind of mechanical property is good, the cast iron pipe flexible interface sealing-ring of acid and alkali-resistance and other chemical substances, long service life, reduction pipeline maintenance cost.
The present invention solves its technical problem and is achieved through the following technical solutions:
A cast iron pipe flexible interface sealing-ring, is characterized in that: the material of sealing circle consists of the component of following weight part:
A preparation method for cast iron pipe flexible interface sealing-ring, is characterized in that: the steps include: neoprene latex 40～60Kg, butadiene-styrene rubber 15～35Kg, zinc oxide 0.25～2.5Kg; Stearic acid 0.125～0.5Kg; Carbon black 7.5～12.5Kg; Tenderizer 1.25～3.75Kg, vulcanizing agent 0.25～2Kg mixing is vulcanized by curing line, makes rubber master batch A;
By second third glue 15～35Kg, zinc oxide 0.75～7.5Kg; Stearic acid 0.375～1.5Kg; Carbon black 22.5～37.5Kg; Tenderizer 3.75～11.25Kg, vulcanizing agent 7.5～6Kg mixing is vulcanized by curing line, makes rubber master batch B;
Above-mentioned rubber master batch A, rubber master batch B are carried out to blend, and at pressure 10～30MPa, 380～400 ℃ of Heating temperatures are carried out compression molding, are incubated after 10～15 minutes, are cooled to room temperature and obtain sealing ring completed product.
Advantage of the present invention and beneficial effect are:
1. cast iron pipe flexible interface sealing-ring of the present invention and preparation method, its sealing-ring has that mechanical property is good, acid and alkali-resistance and oil resistance, guaranteeing that sealing-ring had compared with the long life, reduce the advantage of pipeline maintenance cost, is a kind of cast iron pipe flexible interface sealing-ring with higher innovation.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1:
A cast iron pipe flexible interface sealing-ring, sealing circle consists of the component of following weight part:
A cast iron pipe flexible interface sealing-ring preparation method, the steps include:
By neoprene latex 50Kg, butadiene-styrene rubber 25Kg, zinc oxide 1.25Kg; Stearic acid part 0.25Kg; Carbon black 10Kg; Tenderizer 2.5Kg, vulcanizing agent 1.25Kg mixing is vulcanized by curing line, makes rubber master batch A;
By second the third glue 50Kg, zinc oxide 3.75Kg; Stearic acid part 0.75Kg; Carbon black 30Kg; Tenderizer 7.5Kg, vulcanizing agent 3.75Kg mixing is vulcanized by curing line, makes rubber master batch B;
Above-mentioned rubber master batch A, rubber master batch B are carried out to blend, and at pressure 10～30MPa, 380～400 ℃ of Heating temperatures are carried out compression molding, are incubated after 10～15 minutes, are cooled to room temperature and obtain sealing ring completed product.
Embodiment 2:
A cast iron pipe flexible interface sealing-ring, the material of its sealing-ring consists of the component of following weight part:
A preparation method for cast iron pipe flexible interface sealing-ring, the steps include: neoprene latex 40Kg, butadiene-styrene rubber 15Kg, zinc oxide 0.25Kg; Stearic acid 0.125Kg; Carbon black 7.5Kg; Tenderizer 1.25Kg, vulcanizing agent 0.25Kg mixing is vulcanized by curing line, makes rubber master batch A;
By second the third glue 15Kg, zinc oxide 0.75Kg; Stearic acid 0.375Kg; Carbon black 22.5Kg; Tenderizer 3.75Kg, vulcanizing agent 7.5Kg mixing is vulcanized by curing line, makes rubber master batch B;
Above-mentioned rubber master batch A, rubber master batch B are carried out to blend, and at pressure 10～30MPa, 380～400 ℃ of Heating temperatures are carried out compression molding, are incubated after 10～15 minutes, are cooled to room temperature and obtain sealing ring completed product.
Embodiment 3:
A cast iron pipe flexible interface sealing-ring, the material of sealing circle consists of the component of following weight part:
A preparation method for cast iron pipe flexible interface sealing-ring, the steps include: neoprene latex 60Kg, butadiene-styrene rubber 35Kg, zinc oxide 2.5Kg; Stearic acid 0.5Kg; Carbon black 12.5Kg; Tenderizer 3.75Kg, vulcanizing agent 2Kg mixing is vulcanized by curing line, makes rubber master batch A;
By second the third glue 35Kg, zinc oxide 7.5Kg; Stearic acid 1.5Kg; Carbon black 37.5Kg; Tenderizer 11.25Kg, vulcanizing agent 6Kg mixing is vulcanized by curing line, makes rubber master batch B;
Above-mentioned rubber master batch A, rubber master batch B are carried out to blend, and at pressure 10～30MPa, 380～400 ℃ of Heating temperatures are carried out compression molding, are incubated after 10～15 minutes, are cooled to room temperature and obtain sealing ring completed product.
After two cover vulcanization system sulfurations, form rubber master batch, and then this rubber master batch is carried out to blend, this technique has a significant impact the mechanical property of this formula, and specific performance is as shown in the table:
Cured properties (160 ℃ of X15min)
By the proportioning of this formula, and carry out this special technique, can allow cast iron pipe flexible interface sealing-ring is ageing-resistant, the performance of acid and alkali-resistance, oil resistant is more superior.
Although disclose for the purpose of illustration embodiments of the invention, but it will be appreciated by those skilled in the art that: within not departing from the spiritual scope of the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to the disclosed content of embodiment.
Claims (2)
1. a cast iron pipe flexible interface sealing-ring, is characterized in that: the material of sealing circle consists of the component of following weight part:
2. a preparation method for cast iron pipe flexible interface sealing-ring, is characterized in that: the steps include: neoprene latex 40～60Kg, butadiene-styrene rubber 15～35Kg, zinc oxide 0.25～2.5Kg; Stearic acid 0.125～0.5Kg; Carbon black 7.5～12.5Kg; Tenderizer 1.25～3.75Kg, vulcanizing agent 0.25～2Kg mixing is vulcanized by curing line, makes rubber master batch A;
By second third glue 15～35Kg, zinc oxide 0.75～7.5Kg; Stearic acid 0.375～1.5Kg; Carbon black 22.5～37.5Kg; Tenderizer 3.75～11.25Kg, vulcanizing agent 7.5～6Kg mixing is vulcanized by curing line, makes rubber master batch B;
Above-mentioned rubber master batch A, rubber master batch B are carried out to blend, and at pressure 10～30MPa, 380～400 ℃ of Heating temperatures are carried out compression molding, are incubated after 10～15 minutes, are cooled to room temperature and obtain sealing ring completed product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243382.0A CN104163959A (en) | 2014-06-03 | 2014-06-03 | Sealing ring for flexible interface of cast iron pipe, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243382.0A CN104163959A (en) | 2014-06-03 | 2014-06-03 | Sealing ring for flexible interface of cast iron pipe, and preparation method thereof |
Publications (1)
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| CN104163959A true CN104163959A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410243382.0A Pending CN104163959A (en) | 2014-06-03 | 2014-06-03 | Sealing ring for flexible interface of cast iron pipe, and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402406A (en) * | 2015-10-30 | 2016-03-16 | 宁波凌珂新材料科技有限公司 | Manufacturing method for air-pressure type sealing gasket |
| CN105623115A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Composite rubber seal waterproof material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604243A (en) * | 2012-01-13 | 2012-07-25 | 河南省科学院同位素研究所有限责任公司 | Radial truck tire air-tight layer component and preparation process thereof |
| CN103540034A (en) * | 2013-09-30 | 2014-01-29 | 青岛博玉特橡塑制品有限公司 | Acid-base resisting rubber sealing washer |
-
2014
- 2014-06-03 CN CN201410243382.0A patent/CN104163959A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604243A (en) * | 2012-01-13 | 2012-07-25 | 河南省科学院同位素研究所有限责任公司 | Radial truck tire air-tight layer component and preparation process thereof |
| CN103540034A (en) * | 2013-09-30 | 2014-01-29 | 青岛博玉特橡塑制品有限公司 | Acid-base resisting rubber sealing washer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402406A (en) * | 2015-10-30 | 2016-03-16 | 宁波凌珂新材料科技有限公司 | Manufacturing method for air-pressure type sealing gasket |
| CN105623115A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Composite rubber seal waterproof material and preparation method thereof |
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Application publication date: 20141126 |