CN111848115A - Ultra-low temperature sealing gasket for chemical pipeline - Google Patents
Ultra-low temperature sealing gasket for chemical pipeline Download PDFInfo
- Publication number
- CN111848115A CN111848115A CN201910332196.7A CN201910332196A CN111848115A CN 111848115 A CN111848115 A CN 111848115A CN 201910332196 A CN201910332196 A CN 201910332196A CN 111848115 A CN111848115 A CN 111848115A
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- China
- Prior art keywords
- parts
- sealing gasket
- ultra
- components
- low temperature
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Gasket Seals (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses an ultralow-temperature sealing gasket for chemical pipelines, which comprises the following components in parts by weight: ceramic fiber: 80 parts, and other components: 20 parts of (1); other components include: graphite: 60-70 parts of silicon dioxide: 15-20 parts of boron powder: 10-15 parts of an auxiliary agent: 2-5 parts, the invention increases the tensile strength, increases the toughness, improves the low temperature resistance and corrosion resistance of the gasket, resists nuclear radiation and prolongs the service life of the gasket.
Description
Technical Field
The invention relates to the technical field of plastic compositions, in particular to an ultralow-temperature sealing gasket for chemical pipelines.
Background
Along with the continuous upgrading of chemical industry, also more and more high to the leakproofness requirement of pipeline, present chemical industry conveying pipeline seal gasket ubiquitous corrosion resistance is poor, do not tolerate low temperature, characteristics of easy deformation, and often need change, increased the cost of labor, can lead to the pipeline weeping in addition in the past for a long time, increase and reveal the risk, direct influence personal safety. Therefore, an ultra-low temperature sealing gasket for chemical pipelines is to be developed and improved.
Disclosure of Invention
The invention aims to solve the technical problem that an ultralow-temperature sealing gasket for chemical pipelines is provided aiming at the defects in the prior art, so that the tensile strength is increased, the toughness is increased, the low-temperature resistance and the corrosion resistance of the gasket are improved, and the service life of the gasket is prolonged.
The technical scheme for solving the technical problems is as follows:
the utility model provides an ultra-low temperature seal gasket for chemical pipeline, includes ultra-low temperature seal gasket, ultra-low temperature seal gasket includes following component by mass:
ceramic fiber: 80 parts, and other components: 20 parts of (1);
other components include: graphite: 60-70 parts of silicon dioxide: 15-20 parts of boron powder: 10-15 parts of an auxiliary agent: 2-5 parts.
The technical scheme of the invention is further defined as follows:
the auxiliary agent of the ultralow-temperature sealing gasket for the chemical pipeline is a calcium-zinc stabilizer.
The preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1000-1500r/min, and the stirring time is 15-20 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 150 ℃ and 200 ℃ and the melting pressure of 1.5-3MPa, and performing die pressing to obtain the high-temperature-resistant and high-temperature-resistant aluminum alloy.
The preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1000r/min, and the stirring time is 15 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 150 ℃ and the melting pressure of 1.5MPa, and performing die pressing to obtain the material.
The preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1500r/min, and the stirring time is 20 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 200 ℃ and the melting pressure of 3MPa, and performing die pressing to obtain the material.
The preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1200r/min, and the stirring time is 18 min;
And (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 160 ℃ and the melting pressure of 2MPa, and performing die pressing to obtain the material.
The technical scheme adopted by the invention has the beneficial effects that: according to the technical scheme, the defects of the original formula are overcome, the ultra-strong low-temperature resistance of the ceramic fiber is utilized, and the graphite, the silicon dioxide and the boron powder are matched to increase the tensile strength and the toughness, improve the low-temperature resistance and the corrosion resistance of the gasket, and prolong the service life of the gasket; the problem of poor low-temperature tolerance is solved, the method for preparing the gasket material is simple, the process conditions are easy to control, the gasket material is suitable for large-scale popularization and use, the cost is saved, the applicability is wider, and the technical scheme has simple steps and convenient operation.
Detailed Description
Example 1
The embodiment provides a cryogenic seal gasket for chemical pipeline, including cryogenic seal gasket, cryogenic seal gasket includes following component according to the part by mass:
ceramic fiber: 80 parts, and other components: 20 parts of (1);
other components include: graphite: 60 parts, silica: 15 parts of boron powder: 10 parts of an auxiliary agent: 2 parts of (1);
The auxiliary agent is a calcium-zinc stabilizer;
the preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1000r/min, and the stirring time is 15 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 150 ℃ and the melting pressure of 1.5MPa, and performing die pressing to obtain the material.
Example 2
The embodiment provides a cryogenic seal gasket for chemical pipeline, including cryogenic seal gasket, cryogenic seal gasket includes following component according to the part by mass:
ceramic fiber: 80 parts, and other components: 20 parts of (1);
other components include: graphite: 70 parts, silica: 20 parts of boron powder: 15 parts of an auxiliary agent: 5 parts of a mixture;
the auxiliary agent is a calcium-zinc stabilizer;
the preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1500r/min, and the stirring time is 20 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 200 ℃ and the melting pressure of 3MPa, and performing die pressing to obtain the material.
Example 3
The embodiment provides a cryogenic seal gasket for chemical pipeline, including cryogenic seal gasket, cryogenic seal gasket includes following component according to the part by mass:
ceramic fiber: 80 parts, and other components: 20 parts of (1);
other components include: graphite: 65 parts, silica: 18 parts of boron powder: 13 parts of an auxiliary agent: 3 parts of a mixture;
the auxiliary agent is a calcium-zinc stabilizer;
the preparation method of the ultralow-temperature sealing gasket for the chemical pipeline comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1200r/min, and the stirring time is 18 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 160 ℃ and the melting pressure of 2MPa, and performing die pressing to obtain the material.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides an ultra-low temperature seal gasket for chemical pipeline, includes ultra-low temperature seal gasket, its characterized in that: the ultra-low temperature sealing gasket comprises the following components in parts by weight:
Ceramic fiber: 80 parts, and other components: 20 parts of (1);
the other components comprise: graphite: 60-70 parts of silicon dioxide: 15-20 parts of boron powder: 10-15 parts of an auxiliary agent: 2-5 parts.
2. The ultra-low temperature sealing gasket for chemical pipelines according to claim 1, which is characterized in that: the auxiliary agent is a calcium-zinc stabilizer.
3. A method for preparing a cryogenic sealing gasket for chemical pipelines, which is provided with the cryogenic sealing gasket of any one of claims 1-2, characterized in that the method comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1000-1500r/min, and the stirring time is 15-20 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 150 ℃ and 200 ℃ and the melting pressure of 1.5-3MPa, and performing die pressing to obtain the high-temperature-resistant and high-temperature-resistant aluminum alloy.
4. The method for preparing the ultra-low temperature sealing gasket for the chemical pipeline according to the claim 3, is characterized in that: the method comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1000r/min, and the stirring time is 15 min;
And (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 150 ℃ and the melting pressure of 1.5MPa, and performing die pressing to obtain the material.
5. The method for preparing the ultra-low temperature sealing gasket for the chemical pipeline according to the claim 3, is characterized in that: the method comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1500r/min, and the stirring time is 20 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 200 ℃ and the melting pressure of 3MPa, and performing die pressing to obtain the material.
6. The method for preparing the ultra-low temperature sealing gasket for the chemical pipeline according to the claim 3, is characterized in that: the method comprises the following steps:
firstly, adding the ceramic fiber and other components into a stirrer, and fully stirring to obtain a pre-ingredient, wherein the stirring speed is 1200r/min, and the stirring time is 18 min;
and (II) melting and extruding the pre-prepared material obtained in the step (I) through a double-screw extruder at the temperature of 160 ℃ and the melting pressure of 2MPa, and performing die pressing to obtain the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332196.7A CN111848115A (en) | 2019-04-24 | 2019-04-24 | Ultra-low temperature sealing gasket for chemical pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332196.7A CN111848115A (en) | 2019-04-24 | 2019-04-24 | Ultra-low temperature sealing gasket for chemical pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111848115A true CN111848115A (en) | 2020-10-30 |
Family
ID=72952327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910332196.7A Pending CN111848115A (en) | 2019-04-24 | 2019-04-24 | Ultra-low temperature sealing gasket for chemical pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111848115A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100140029A1 (en) * | 2007-04-25 | 2010-06-10 | Trelleborg Rubore Ab | Anti-squeal shim |
| CN103059354A (en) * | 2011-10-20 | 2013-04-24 | 岱山县威尔密封件有限公司 | Sealing gasket |
| CN104797872A (en) * | 2012-09-19 | 2015-07-22 | 卡勒克密封技术有限责任公司 | Spiral wound gasket |
| CN106633827A (en) * | 2016-12-29 | 2017-05-10 | 宁波墨西科技有限公司 | Graphene nylon composite material and preparation method thereof |
| CN107473625A (en) * | 2017-08-08 | 2017-12-15 | 芬泰克新材料南通有限公司 | A kind of ceramic fiber mat and preparation method thereof |
| CN108222667A (en) * | 2018-01-02 | 2018-06-29 | 佛山市南海崇泰防火材料有限公司 | A kind of fire prevention lockset gasket set and gasket assembly |
-
2019
- 2019-04-24 CN CN201910332196.7A patent/CN111848115A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100140029A1 (en) * | 2007-04-25 | 2010-06-10 | Trelleborg Rubore Ab | Anti-squeal shim |
| CN103059354A (en) * | 2011-10-20 | 2013-04-24 | 岱山县威尔密封件有限公司 | Sealing gasket |
| CN104797872A (en) * | 2012-09-19 | 2015-07-22 | 卡勒克密封技术有限责任公司 | Spiral wound gasket |
| CN106633827A (en) * | 2016-12-29 | 2017-05-10 | 宁波墨西科技有限公司 | Graphene nylon composite material and preparation method thereof |
| CN107473625A (en) * | 2017-08-08 | 2017-12-15 | 芬泰克新材料南通有限公司 | A kind of ceramic fiber mat and preparation method thereof |
| CN108222667A (en) * | 2018-01-02 | 2018-06-29 | 佛山市南海崇泰防火材料有限公司 | A kind of fire prevention lockset gasket set and gasket assembly |
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Application publication date: 20201030 |