CN105017578A - Process for preparing rubber friction material of a vibration absorbing damper in full automatic wasing machine - Google Patents

Process for preparing rubber friction material of a vibration absorbing damper in full automatic wasing machine Download PDF

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Publication number
CN105017578A
CN105017578A CN201410323511.7A CN201410323511A CN105017578A CN 105017578 A CN105017578 A CN 105017578A CN 201410323511 A CN201410323511 A CN 201410323511A CN 105017578 A CN105017578 A CN 105017578A
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CN
China
Prior art keywords
product
rubber
carbon black
friction material
rubber friction
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Pending
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CN201410323511.7A
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Chinese (zh)
Inventor
崔荣喆
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SAMCO CO Ltd
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SAMCO CO Ltd
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Publication of CN105017578A publication Critical patent/CN105017578A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F49/00—Domestic spin-dryers or similar spin-dryers not suitable for industrial use
    • D06F49/06—Mountings, e.g. resilient mountings, for the bowl or casings; Preventing or damping vibrations
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A method of preparing a rubber friction material of a vibration absorbing damper in a full automatic wasing machine. The method includes:The method comprises: 1) uniformly mixing the raw materials to form an aggregate mixture; 2) forming a sheet from the aggregate mixture; 3) cutting the sheet in a weight; 4) vulcanizing the cut product in a mold by heat and pressure; trimmed after curing products; and 5) Check and trim the size and appearance of the product, and then package and ship the product. The rubber friction material of the present invention can be effectively damping, even at an extremely low temperature does not shrink, and exhibit satisfactory wear resistance and cold resistance.

Description

Prepare the method for the rubber friction material of damper in automatic washing machine
Technical field
The present invention relates to the method for the rubber friction material preparing damper in automatic washing machine, this rubber friction material effectively can absorb vibration and can not shrink when extremely low temperature.
Background technology
In automatic washing machine, between the offside on the downside of the periphery that deoscillator is arranged on diagonal angle on the downside of the shell of washing machine and bucket, and the vibration of bucket absorbing and produce during weakening spin-drying operation.
Usually, the friction that this deoscillator is configured to produce when use two rod components move relative to each other carrys out damping vibration.This deoscillator comprise the hollow at the angle, lower end being connected to shell out-damping device housing and be connected to bucket outside lower end and can along the inside damper bar of the medial movement of deoscillator housing.The lower end of inside damper bar is provided with a pair annular friction component, and this is by smearing the sponge with grease etc. and vertical mounting arrangements to friction member, to produce friction when contacting the inner circumferential of out-damping device housing.
No. 10-799632, Korean Patent discloses a kind of frcition damper of use in washing machine, its proposition semi-permanently uses the friction enhancing material be made up of rubber (paracril, NBR) to overcome the method for the limit of friction of traditional damper of use in washing machine.This deoscillator can effectively reduce vibration/noise when room temperature.But this deoscillator can not play a role when extremely low temperature.Specifically, the problem of this deoscillator is, when extremely low temperature, damping capacity increases, thus produces vibration/noise.In addition, General Purpose Rubber (NBR) is used to have vibration/noise problem as the deoscillator of friction member when extremely low temperature.
Summary of the invention
Although the main typical nitrile rubber being used as the rubber friction material of damper shows high-wearing feature, this typical nitrile rubber does not resist cold.
Therefore, envision the present invention to shrink and take-up rod when sub-zero temperature in winter to solve rubber friction material, thus be difficult to the problem realizing effective vibration damping and damping, an aspect of of the present present invention provides a kind of method preparing the rubber friction material of damper in automatic washing machine, this rubber friction material can when extremely low temperature effective vibration damping and not shrinking, that is, gratifying wear resistance and winter hardiness can be had.
According to an aspect of the present invention, a kind of method preparing the rubber friction material of damper in automatic washing machine comprises: form aggregate mixture by Homogeneous phase mixing starting material; Described aggregate mixture is formed as sheet material; Described sheet material is cut according to weight; By heat and pressure by be placed in mould cutting after product sulfuration; Product after finishing sulfuration; And after the size checking the product after repairing and outward appearance, this product packed and load and transport.
Embodiment
Be described in more detail below embodiments of the invention.
The present invention relates to a kind of method preparing the rubber friction material of damper in automatic washing machine, the method comprises the following steps.
raw-material mixing
According to one embodiment of present invention, this step is Homogeneous phase mixing starting material and mixed starting material is formed as the technique of aggregate.
According to the present invention, these starting material comprise rubber constituent, carbon black, vulcanizing agent, tenderizer, antioxidant, promotor and fluidizer.Rubber constituent comprises the DN of 22 % by weight (wt%) to 25wt% 3o 2the DN of H [there is the butyronitrile synthetic rubber (NIPOL BR) of the low content nitrile of 27.5%, produced by ZEON company] and 8wt% to 12wt% 2o 2[there is the butyronitrile synthetic rubber (NIPOL BR) of the middle nitrile content of 31%, produced by ZEON company].At this, if the content of rubber constituent is not within the scope of this, then deoscillator rubber may have the physicals of degeneration in winter hardiness, tensile strength, elongation, hardness etc., thus causes disadvantageous effect to the wearing quality of deoscillator rubber.
Carbon black is used as the toughener of rubber constituent.That is, carbon black is provided for the hardness reducing deoscillator rubber.Such as, fast extrusion stove (fast extrudingfurnace, the FEF) carbon black of 30wt% to 35wt% and half reinforcement stove (semi reinforcingfurnce, the SRF) carbon black of 5wt% to 8wt% can be used as carbon black together.
FEF carbon black is favourable in good oilness, low interior thermogenesis and good thermal conductivity, and is suitable for extruding.SRF carbon black is fine particle, enhancing and wear-resisting in show premium properties, and can easily to mix with compounded oil in process.If carbon black content is not within the scope of this, then the hardness of deoscillator rubber may change, thus causes vibration/noise (damping capacity and hardness proportional).
Vulcanizing agent refers to such as oxygenant, and can comprise the zinc oxide of 1wt% to 2wt%.Zinc oxide as oxygenant is for being oxidized or the material of dehydrogenation, and the chemical reaction of the chemical reaction participated between rubber and sulphur and vulcanization accelerator.If the content of vulcanizing agent is in above-mentioned scope, then this vulcanizing agent can make rubber heat-resisting, because it has good conductivity, and can also be used as white color agents while being used as toughener.
In the present embodiment, tenderizer is used for making rubber softening, with easily processed, and can comprise the stearic acid of such as 0.2wt% to 0.4wt%.If the content of tenderizer is not within the scope of this, be then difficult to the expectation physicals obtaining deoscillator rubber.
In the present embodiment, antioxidant can comprise the N-phenyl-N-sec.-propyl-Ursol D (N-phenylene-N-isopropyl-p-phenylenediamine of 0.1wt% to 0.2wt%, and 2 of 0.1wt% to 0.2wt% Kumanox3C), 2,4-trimethylammonium-1,2-dihyaroquinoline (2,2,4-trimethyl-1,2-dihydroquinoline, KumanoxRD).Antioxidant is for stopping at the chain reaction as the autoxidation caused by oxygen of important factor in catabiosis.Specifically, N-phenyl-N-sec.-propyl-Ursol D is for preventing the cracking caused by sunlight.When content is in above-mentioned scope, N-phenyl-N-sec.-propyl-Ursol D is effective especially for the cracking preventing from being caused by ozone, and cracking when can effectively prevent bending.In addition, 2,2,4-trimethylammonium-1,2-dihyaroquinoline generally can be used for the product needing thermotolerance, because it can not cause efflorescence when mixing, and does not affect vulcanization accelerator.
In the present embodiment, promotor can refer to vulcanization accelerator, and is typical organic rubber chemical, it is included in sulfuration process together with antioxidant, as basic chemical additive, to promote the physicals of sulfuration and raising rubber, thus starting material rubber is made to have elasticity.In this, this promotor comprises the sulphur (S) of 0.2%wt to 0.6wt%, the N cyclohexyl 2 benzothiazole sulfenamide (N-cyclohexyl-2-benzothiazyl-sulfenamide of 0.2wt% to 0.6wt%, CZ), tetramethyl-thiuram disulfide (the tetramethylthiuram disulfide of 0.1wt% to 0.2wt%, and the two butyl disulfide amido acid zinc of 0.1wt% to 0.2wt% (di-N-butyldithiocarbamate zinc, BZ) TT).If the content of promotor is below or above this scope, then may occur aging, oxidation and scorching.
In the present embodiment, fluidizer improves the processing characteristics of rubber, make product have elasticity simultaneously, and the o-phthalic acid dibutyl ester (dioctylphthalate of 10wt% to 20wt% can be comprised, DOP), the molybdenum of 0.2wt% to 0.4wt%, the tetrafluoroethylene (polytetrafluoroethylene of 0.1wt% to 0.2wt%, PTFE) and 1.7wt% to 8.5wt% by refining to have the Oleic acid amide powder (oleamide powder, ARMOSLIPCP) of low water content.If the content of fluidizer is not within the scope of this, be then difficult to the expectation physicals realizing deoscillator rubber.
mixture is formed as sheet material
According to one embodiment of present invention, by starting material mixing to form aggregate, this aggregate is then made to pass between roller to form sheet material.
cutting
According to one embodiment of present invention, this sheet material is cut according to weight.
In this embodiment, can being formed after sheet material and to check the formation of mixture before being cut.
sulfuration
According to one embodiment of present invention, the product after cutting is placed in mould, and carrys out sulfuration by heat and pressure.
the finishing of product
According to one embodiment of present invention, the product after sulfuration is repaired.
the inspection of the finished product, packing and shipment
According to one embodiment of present invention, after the size checking product and outward appearance, product is packed and loads and transports.
As mentioned above, can effective vibration damping according to the rubber friction material of the damper in automatic washing machine of the present invention, even and if also can not shrink when extremely low temperature.
In addition, rubber friction bill of material according to the present invention reveals gratifying wear-resisting and winter hardiness.
In addition, from below-10 DEG C time to occur that damping capacity increases the conventional damper of phenomenon different, even if rubber friction material according to the present invention also can keep the damping capacity identical with during room temperature when the temperature of-30 DEG C.
Although be described herein some exemplary embodiments, but those skilled in the art is to be understood that, these embodiments only provide by way of illustration, and can carry out various amendment, change and replacement when without departing from the spirit and scope of the present invention.Scope of the present invention should be limited by claims and equivalent thereof.

Claims (9)

1. prepare a method for the rubber friction material of damper in automatic washing machine, the method comprises:
Aggregate mixture is formed by Homogeneous phase mixing starting material;
Described aggregate mixture is formed as sheet material;
Described sheet material is cut according to weight;
By heat and pressure by be placed in mould cutting after product sulfuration;
Product after finishing sulfuration; And
After the size checking the product after repairing and outward appearance, this product packed and load and transport.
2. method according to claim 1, wherein said starting material comprise rubber constituent, carbon black, vulcanizing agent, tenderizer, antioxidant, vulcanization accelerator and fluidizer.
3. method according to claim 2, wherein said rubber constituent comprises the butyronitrile synthetic rubber with the low content nitrile of 27.5% of 22wt% to 25wt% and the butyronitrile synthetic rubber with nitrile content in 31% of 8wt% to 12wt%.
4. method according to claim 2, wherein said carbon black comprises fast extrusion stove (FEF) carbon black of 30wt% to 35wt% and half reinforcement stove (SRF) carbon black of 5wt% to 8wt%.
5. method according to claim 2, wherein said vulcanizing agent comprises the zinc oxide of 1wt% to 2wt%.
6. method according to claim 2, wherein said tenderizer comprises the stearic acid of 0.2wt% to 0.4wt%.
7. method according to claim 2, wherein said antioxidant comprises the N-phenyl-N-sec.-propyl-Ursol D of 0.1wt% to 0.2wt% and 2,2,4-trimethylammonium-1, the 2-dihyaroquinolines of 0.1wt% to 0.2wt%.
8. method according to claim 2, wherein said vulcanization accelerator comprises the two butyl disulfide amido acid zinc of the sulphur of 0.2%wt to 0.6wt%, the N cyclohexyl 2 benzothiazole sulfenamide of 0.2wt% to 0.6wt%, the tetramethyl-thiuram disulfide of 0.1wt% to 0.2wt% and 0.1wt% to 0.2wt%.
9. method according to claim 2, wherein said fluidizer comprises the Oleic acid amide powder of the o-phthalic acid dibutyl ester of 10wt% to 20wt%, the molybdenum of 0.2wt% to 0.4wt%, the tetrafluoroethylene of 0.1wt% to 0.2wt% and 1.7wt% to 8.5wt%.
CN201410323511.7A 2014-04-15 2014-07-08 Process for preparing rubber friction material of a vibration absorbing damper in full automatic wasing machine Pending CN105017578A (en)

Applications Claiming Priority (2)

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KR1020140044880A KR20150118798A (en) 2014-04-15 2014-04-15 Process for preparing rubber friction material of a vibration absorbing damper in full automatic wasing machine
KR10-2014-0044880 2014-04-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107266737A (en) * 2017-06-28 2017-10-20 常州创索新材料科技有限公司 A kind of rubber friction material and preparation method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109134975A (en) * 2018-09-20 2019-01-04 裴清馨 Low temperature resistant NBR rubber of resistance to ozone of one kind and preparation method thereof
CN114276588B (en) * 2021-11-19 2023-05-12 浙江威格尔传动股份有限公司 Cracking-proof low-temperature synchronous belt and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107266737A (en) * 2017-06-28 2017-10-20 常州创索新材料科技有限公司 A kind of rubber friction material and preparation method thereof

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Application publication date: 20151104