CN104235370B - A kind of low-friction coefficient sealing drilled packing ring - Google Patents

A kind of low-friction coefficient sealing drilled packing ring Download PDF

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Publication number
CN104235370B
CN104235370B CN201410368597.5A CN201410368597A CN104235370B CN 104235370 B CN104235370 B CN 104235370B CN 201410368597 A CN201410368597 A CN 201410368597A CN 104235370 B CN104235370 B CN 104235370B
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Prior art keywords
friction coefficient
low
packing ring
foil
flexible material
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CN201410368597.5A
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CN104235370A (en
Inventor
张军
马巧根
陈秋兰
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SUZHOU GAS EQUIPMENT & VALVES MANUFACTURING Co.,Ltd.
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Suzhou Saiside Engineering Equipment Co Ltd
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Priority to CN201610482613.2A priority Critical patent/CN106090219B/en
Priority to CN201610482385.9A priority patent/CN105952898B/en
Priority to CN201610483012.3A priority patent/CN106090220B/en
Priority to CN201610482248.5A priority patent/CN106122476B/en
Priority to CN201410368597.5A priority patent/CN104235370B/en
Priority to CN201610482405.2A priority patent/CN106051158B/en
Publication of CN104235370A publication Critical patent/CN104235370A/en
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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
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • 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
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • F16J15/125—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally perpendicular to the surfaces
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • 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
    • 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
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
    • 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
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/20—Packing materials therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Lubricants (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a kind of sealing drilled packing ring, belong to the sealing ring technical field made with metal.A kind of low-friction coefficient sealing drilled packing ring includes: if dried layer foil and lamellar low-friction coefficient flexible material, the top of described sealing drilled packing ring and the bottom are described foil, it is provided with one layer of described lamellar low-friction coefficient flexible material described in adjacent two-layer between foil, described foil is evenly distributed with multiple projecting apertures and multiple shrinkage pool that spurt processing is formed.This low-friction coefficient sealing drilled packing ring coefficient of friction is less, it is possible to the problem avoiding the frictional force caused because of frock or other reasons to increase occurs.

Description

A kind of low-friction coefficient sealing drilled packing ring
Technical field
The present invention relates to a kind of sealing drilled packing ring, belong to the sealing ring technical field made with metal.
Background technology
In the prior art, it is generally used for static or that linear velocity is less axle class sealing drilled packing ring, is with single flexibility Material is constituted, and the structural strength of material is relatively low, it is impossible to the operating mode of opposing elevated pressures, the most in use material is by medium Blowout or abrasion, also have and increase metal backup shoe or complexed metal litzendraht wire on packing ring surface to improve material strength problem, but The steel pool that metal backup shoe is smooth is poor with flexible sealing material adhesion, occurs that leakage is asked when easily coming off and use during installation Topic, metal backup shoe only exists surface simultaneously, improves the most limited to intensity, and metal knitted line exists the highest the asking of intensity too Topic, and when somewhere occurs that frock problem causes that between contact surface, frictional force is excessive, can run out bearing, even can give packing ring itself Structure brings impact.
Summary of the invention
The technical problem to be solved in the present invention is, not enough for prior art, proposes a kind of low-friction coefficient airtight and watertight padding Ring.
The present invention solves that the technical scheme that above-mentioned technical problem proposes is: a kind of low-friction coefficient sealing drilled packing ring bag Include: if dried layer foil and lamellar low-friction coefficient flexible material, the top of described sealing drilled packing ring and the bottom are institute State foil, described in adjacent two-layer, between foil, be provided with one layer of described lamellar low-friction coefficient flexible material, institute State and on foil, be evenly distributed with multiple projecting apertures and the multiple shrinkage pool that spurt processing is formed.
Described lamellar low-friction coefficient flexible material is made up of following mass percent raw material: 20%～40% plant is fine Dimension, 20%～30% inanimate matter, 5%～10% wetting agent, 5%～15% lubricant, 5%～15% thickening agent；Wherein, described Plant fiber The mass percent of each component is 10%～60% Semen Ricini line, 15%～40% linen thread, 0～20% Boehmeria and 0～20% Corchorus olitorius L.；Described The mass percent of each component of inanimate matter is 35%～65% graphite, 0～35% molybdenum bisuphide and 0～35% silicon dioxide, and this nothing The particle diameter of machine matter is 2500 mesh；Described wetting agent is trimethoxy silane, silmethylene or purity 99% ptfe emulsion In one；Described lubricant is the one in castor-based lubricating oil, mineral base oil or PAO polyolefin artificial oil；Described increasing Thick dose is natural polymer and derivant thereof, including: starch, gelatin, sodium alginate, casein, guar gum, chitosan, I One or more in uncle natural gum, xanthan gum, soybean glue, natural rubber, lanoline, agar；
Described lamellar low-friction coefficient flexible material is prepared as follows according to said components:
(1) by described Plant fiber's room temperature described wetting agent of immersion 24～48 hours；
(2) taking out the Plant fiber of infiltration in step (1) and carry out chopping process, the plant fiber length after chopping is less than 5mm；
(3) in the first Scattered Kettle, described inanimate matter and described lubricant are added successively, 800 revs/min of high-speed stirred, mixed Close uniform 10～15min；
(4) in the second Scattered Kettle, the mixture of acquisition in the Plant fiber after chopping and step (3) is added successively, fully Mixing, after 800 revs/min of high-speed stirred, then adds thickening agent and with 50～150 revs/min of low speed in the second Scattered Kettle Stirring is until being layered without obvious between the two；
(5) it is evaporated processing with 50～80 DEG C by the mixture obtained in step (4) so that water in final mixture Mass percent is between 13%～25%.
What described foil was connected with flexible material layer is partially submerged in described projecting apertures and shrinkage pool.
Described foil material is one or more combination in rustless steel, galvanized sheet, copper.
Described shrinkage pool and projecting apertures are spaced.
The present invention uses technique scheme to provide the benefit that: this by airtight and watertight padding by the common structure of multilayer loop structure Become, be provided for the foil of support rib effect and styling at lamellar low-friction coefficient flexible material internal layer and outer layer Layer, makes low-friction coefficient material will not deform because of extruding or the impact of other active forces, and fills out relative to existing Ring, the less normal operation not affecting pump of coefficient of friction between itself and filler.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the present embodiment.
Detailed description of the invention
Embodiment
The low-friction coefficient sealing drilled packing ring of the present embodiment, as it is shown in figure 1, low by four layers of foil 1 and three-layer tablet shape Coefficient of friction flexible material 2 forms, and the top of sealing drilled packing ring and the bottom are foil 1, and adjacent double layer of metal is thin One layer of described lamellar low-friction coefficient flexible material 2 it is provided with, it can be seen that the double layer of metal of inner side is thin between sheet 1 The skeleton function that sheet is 1,1 styling of the foil in outside, limit whole low-friction coefficient flexible material 2 and form, gold Being evenly distributed with spurt on genus thin slice 1 and processing the multiple projecting apertures 3 and multiple shrinkage pool 4, projecting apertures 3 and projecting apertures 4 formed by metal foil Sheet 1 closely cooperates with low-friction coefficient flexible material 2.
What foil 1 was connected with lamellar low-friction coefficient flexible material 2 is partially submerged in projecting apertures 3 and shrinkage pool 4.
By in rustless steel, galvanized sheet, copper, one or more make foil 1.
Shrinkage pool 4 and projecting apertures 3 are spaced.
Lamellar low-friction coefficient flexible material is made up of following mass percent raw material: 20%～40% Plant fiber, 20% ～30% inanimate matter, 5%～10% wetting agent, 5%～15% lubricant, 5%～15% thickening agent；Wherein, the matter of each component of Plant fiber Amount percent is 10%～60% Semen Ricini line, 15%～40% linen thread, 0～20% Boehmeria and 0～20% Corchorus olitorius L.；The each component of inanimate matter Mass percent is 35%～65% graphite, 0～35% molybdenum bisuphide and 0～35% silicon dioxide, and the particle diameter of inanimate matter is 2500 Mesh；Wetting agent is the one in trimethoxy silane, silmethylene or purity 99% ptfe emulsion；Lubricant is castor One in fiber crops based lubricating oil, mineral base oil or PAO polyolefin artificial oil；Thickening agent is natural polymer and derivant thereof, Including: starch, gelatin, sodium alginate, casein, guar gum, chitosan, Radix Acaciae senegalis, xanthan gum, soybean glue, sky So one or more in rubber, lanoline, agar；
Lamellar low-friction coefficient flexible material is prepared as follows according to said components:
(1) by described Plant fiber's room temperature described wetting agent of immersion 24～48 hours；
(2) taking out the Plant fiber of infiltration in step (1) and carry out chopping process, the plant fiber length after chopping is less than 5mm；
(3) in the first Scattered Kettle, inanimate matter and lubricant are added successively, 800 revs/min of high-speed stirred, mix homogeneously 10 ～15min；
(4) in the second Scattered Kettle, the mixture of acquisition in the Plant fiber after chopping and step (3) is added successively, fully Mixing, after 800 revs/min of high-speed stirred, then adds thickening agent and with 50～150 revs/min of low speed in the second Scattered Kettle Stirring is until being layered without obvious between the two；
(5) it is evaporated processing with 50～80 DEG C by the mixture obtained in step (4) so that water in final mixture Mass percent is between 13%～25%.
The present invention is not limited to above-described embodiment.The technical scheme that all employing equivalents are formed, all falls within the present invention and wants The protection domain asked.

Claims (4)

1. a low-friction coefficient sealing drilled packing ring, it is characterised in that including: if dried layer foil and lamellar low-friction coefficient Flexible material, the top of described sealing drilled packing ring and the bottom are described foil, foil described in adjacent two-layer Between be provided with one layer of described lamellar low-friction coefficient flexible material, described foil being evenly distributed with spurt processing institute shape The multiple projecting apertures become and multiple shrinkage pool；Described lamellar low-friction coefficient flexible material is made up of following mass percent raw material: 40% Plant fiber, 30% inanimate matter, 5%～10% wetting agent, 5%～15% lubricant, 5%～15% thickening agent；Its In, the mass percent of each component of described Plant fiber is 60% Semen Ricini line, 15%～40% linen thread, 0～20% ramie Fiber crops and 0～20% Corchorus olitorius L.；The mass percent of each component of described inanimate matter is 35%～65% graphite, 0～35% 2 sulfur Change molybdenum and 0～35% silicon dioxide, and the particle diameter of this inanimate matter is 2500 mesh；Described wetting agent is trimethoxy silane, Asia One in methyl-monosilane or purity 99% ptfe emulsion；Described lubricant is castor-based lubricating oil, mineral base oil Or the one in PAO polyolefin artificial oil；Described thickening agent is natural polymer and derivant thereof, including: starch, gelatin, Sodium alginate, casein, guar gum, chitosan, Radix Acaciae senegalis, xanthan gum, soybean glue, natural rubber, lanoline, fine jade One or more in fat；Described lamellar low-friction coefficient flexible material is prepared as follows according to said components:
(1) by described Plant fiber's room temperature described wetting agent of immersion 24～48 hours；
(2) taking out the Plant fiber of infiltration in step (1) and carry out chopping process, the plant fiber length after chopping is less than 5mm；
(3) in the first Scattered Kettle, described inanimate matter and described lubricant are added successively, 800 revs/min of high-speed stirred, mixing
Uniform 10～15min；
(4) in the second Scattered Kettle, add the mixture of acquisition in the Plant fiber after chopping and step (3) successively, the most mixed Close, after 800 revs/min of high-speed stirred, then in the second Scattered Kettle, add thickening agent and with 50～150 revs/min Stirring at low speed is until being layered without obvious between the two；
(5) it is evaporated processing with 50～80 DEG C by the mixture obtained in step (4) so that the matter of water in final mixture Amount percent is between 13%～25%.
2. low-friction coefficient sealing drilled packing ring as described in claim 1, it is characterised in that: described foil and flexible material What layer was connected is partially submerged in described projecting apertures and shrinkage pool.
3. low-friction coefficient sealing drilled packing ring as described in claim 1 or 2, it is characterised in that: described foil material is One or more combination in rustless steel, galvanized sheet, copper.
4. low-friction coefficient sealing drilled packing ring as described in claim 3, it is characterised in that: described shrinkage pool and projecting apertures interval row Row.
CN201410368597.5A 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring Active CN104235370B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201610482613.2A CN106090219B (en) 2014-07-30 2014-07-30 The production method of sealing drilled packing ring
CN201610482385.9A CN105952898B (en) 2014-07-30 2014-07-30 Low-friction coefficient sealing drilled packing ring and its production method
CN201610483012.3A CN106090220B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring and its production method
CN201610482248.5A CN106122476B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201410368597.5A CN104235370B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201610482405.2A CN106051158B (en) 2014-07-30 2014-07-30 A kind of sealing drilled packing ring and its production method

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Application Number Priority Date Filing Date Title
CN201410368597.5A CN104235370B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring

Related Child Applications (5)

Application Number Title Priority Date Filing Date
CN201610482385.9A Division CN105952898B (en) 2014-07-30 2014-07-30 Low-friction coefficient sealing drilled packing ring and its production method
CN201610482405.2A Division CN106051158B (en) 2014-07-30 2014-07-30 A kind of sealing drilled packing ring and its production method
CN201610482248.5A Division CN106122476B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201610483012.3A Division CN106090220B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring and its production method
CN201610482613.2A Division CN106090219B (en) 2014-07-30 2014-07-30 The production method of sealing drilled packing ring

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CN104235370A CN104235370A (en) 2014-12-24
CN104235370B true CN104235370B (en) 2016-08-24

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CN201610482405.2A Active CN106051158B (en) 2014-07-30 2014-07-30 A kind of sealing drilled packing ring and its production method
CN201610482248.5A Active CN106122476B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201610483012.3A Active CN106090220B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring and its production method
CN201410368597.5A Active CN104235370B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201610482613.2A Active CN106090219B (en) 2014-07-30 2014-07-30 The production method of sealing drilled packing ring
CN201610482385.9A Expired - Fee Related CN105952898B (en) 2014-07-30 2014-07-30 Low-friction coefficient sealing drilled packing ring and its production method

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CN201610482248.5A Active CN106122476B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring
CN201610483012.3A Active CN106090220B (en) 2014-07-30 2014-07-30 A kind of low-friction coefficient sealing drilled packing ring and its production method

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CN201610482385.9A Expired - Fee Related CN105952898B (en) 2014-07-30 2014-07-30 Low-friction coefficient sealing drilled packing ring and its production method

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JP6651017B2 (en) * 2017-02-16 2020-02-19 Nok株式会社 Seal material
JP6754746B2 (en) * 2017-10-31 2020-09-16 ニチアス株式会社 Sealing material

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CN106090219B (en) 2017-12-08
CN104235370A (en) 2014-12-24
CN105952898B (en) 2017-09-29
CN106122476B (en) 2017-11-21
CN106051158A (en) 2016-10-26
CN106122476A (en) 2016-11-16
CN106090220A (en) 2016-11-09
CN106051158B (en) 2017-09-29
CN105952898A (en) 2016-09-21
CN106090219A (en) 2016-11-09
CN106090220B (en) 2017-09-29

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