CN106633843A - Preparation method of PA66 chain guide rail - Google Patents
Preparation method of PA66 chain guide rail Download PDFInfo
- Publication number
- CN106633843A CN106633843A CN201610852688.5A CN201610852688A CN106633843A CN 106633843 A CN106633843 A CN 106633843A CN 201610852688 A CN201610852688 A CN 201610852688A CN 106633843 A CN106633843 A CN 106633843A
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- Prior art keywords
- preparation
- parts
- raw material
- drying
- chain guide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- C08K2201/011—Nanostructured additives
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a preparation method of a PA66 chain guide rail. The preparation method comprises the following steps: (1) 50-70 parts of PA66 and 1-15 parts of additives are subjected to primary granulation in a granulator; (2) the granulated raw materials are dried in a dryer for 2-4 h at the temperature of 90-140 DEG C; (3) 30-40 parts of glass fibers are added to 55-90 parts of the dried raw materials, and the materials are subjected to secondary granulation in the granulator in a certain ratio; (4) the raw materials subjected to secondary granulation are subjected to extrusion molding through an extruding machine. By means of crosslinking of PA66 and the glass fibers, the finally prepared chain guide rail has high machining precision and physical strength, and the surface smoothness is improved; the preparation cost is reduced substantially through extrusion molding; finally, a water repellent agent and a lubricant are added to the raw materials, so that the water absorption of the chain guide rail is reduced, the lubricity of the chain guide rail is improved, and the chain guide rail has longer service life.
Description
Technical field
The present invention relates to automation equipment servicing unit field, more particularly to a kind of preparation method of PA66 chain guides.
Background technology
Chain guide is especially played in automatic production line or automation equipment in automated material conveying device
Support and guide function to chain.Chain is moved on the linear protruding rail formed in guide rail surface, and is passed through
Chain-driving other parts play power transmission effect.Chain guide primarily serves support chain, and reduces and chain between
The effect of friction.
At present, the chain guide for support chain being used in prior art is made using UHMWPE (ultra high molecular polyethylene).
Its mainly method processed be：To be in that block UHMWPE washes the secondary CNC modes such as processs, drill process and carries out adding using cutting, milling
Work, to form the shape of setting.But, it is poor to there is machining accuracy in this process route, and waste of raw materials is serious, preparation cost
Height, the not high defect of surface smoothness.Due to chain guide in actual use, chain can at a high speed be transported on the surface of chain guide
It is dynamic, therefore the surface smoothness of chain guide is a kind of very important technical indicator.Meanwhile, traditional chain guide for preparing
The length of the chain guide obtained by process route is fixed, it is impossible to meet diversified demand on market.
Meanwhile, chain guide of the prior art due to being made using UHMWPE (ultra high molecular polyethylene), due to poly- second
Alkene material physical chemistry is specific, and all many performances such as its high temperature resistant, anti-aging have certain defect.It is (super by UHMWPE
High-molecular polythene) made by UHMWPE chain guides in use for some time, the guide rail of its support chain occurs seriously
Abrasion, this can directly affect support and guide effect of the chain guide to chain.
In view of this, it is necessary to which the preparation method of chain guide of the prior art is improved, solving above-mentioned asking
Topic.
The content of the invention
It is an object of the invention to a kind of preparation method of PA66 chain guides is disclosed, to the processing for improving chain guide
Precision, improves surface smoothness, reduces preparation cost, and improves service life.
For achieving the above object, the invention provides a kind of preparation method of 1.PA66 chain guides, comprises the following steps：
(1) once granulate：PA66 and additive are carried out into according to a certain percentage first time granulation process in comminutor, its
In, PA66：50～70 parts；Additive：1～15 part；
(2) drying and processing：Raw material after granulation is processed is dried 2～4 hours in dryer, the baking of the setting of dryer
Dry temperature is 90 DEG C～140 DEG C；
(3) secondary granulation：Glass fibre is added to carry out second in comminutor according to a certain percentage the raw material after drying
Secondary granulation is processed, wherein, dried raw material：55～90 parts；Glass fibre：30～40 parts；
(4) extrusion molding：By the raw material after secondary granulation by extruder for shaping, the temperature of extrusion molding is 250
DEG C～310 DEG C.
As a further improvement on the present invention, the additive includes toughener, coupling agent, lubricant, antioxidant, anti-
Aging dose, water repellent agent, heat stabilizer and Masterbatch.
As a further improvement on the present invention, the toughener, coupling agent, lubricant, antioxidant, age resister, anti-
Parts by weight ratio between aqua, heat stabilizer and Masterbatch is：1:2:1.2:1.5:1.2:1.8:0.8:0.5.
As a further improvement on the present invention, the toughener is polyolefin elastomer toughener, and the coupling agent is silicon
Alkane coupling agent, the lubricant is polyol fatty acid, and the age resister is unimolecular N- alkoxy hindered amine stabilizers,
The antioxidant is dibutyl dithiocaarbamate salt, and the heat stabilizer is nano titanium oxide, and the water repellent agent is
Melamine resin.
As a further improvement on the present invention, soluble poly gold is added in the raw material in the step (3) after the drying
Category organosiloxane.
As a further improvement on the present invention, after the drying between raw material and soluble polyorganometallosiloxane
Mass ratio is 100:2.
Compared with prior art, the invention has the beneficial effects as follows：In the present invention, mutually handed over glass fibre by PA66
Connection so that the chain guide for finally preparing has plus high manufacturing accuracy and physical strength, improves surface smoothness；It is simultaneously logical
Extrusion moulding is crossed, preparation cost is significantly reduced；Finally, water repellent agent and lubricant are added in the feed, reduces chain and lead
The water absorption rate of rail simultaneously improves lubricity so that chain guide has the longer life-span.
Specific embodiment
With reference to each embodiment, the present invention is described in detail, but it should explanation, these embodiments are simultaneously
Non- limitation of the present invention, those of ordinary skill in the art are according in these embodiment institute work energy, method or structures
Equivalent transformation or replacement, belong within protection scope of the present invention.
Embodiment one：
A kind of preparation method of PA66 chain guides, comprises the following steps：Step (1) is once granulated：By PA66 and addition
Agent carries out according to a certain percentage first time granulation process in comminutor, wherein, PA66：50 parts；Additive：1 part.Step (2)
Drying and processing：Raw material after granulation is processed is dried 2 hours in dryer, and the drying temperature for setting of dryer is as 90 DEG C.
Step (3) secondary granulation：Glass fibre is added to be made for the second time in comminutor according to a certain percentage the raw material after drying
Grain is processed, wherein, dried raw material：55 parts；Glass fibre：30 parts.Step (4) extrusion molding：By the original after secondary granulation
By extruder for shaping, the temperature of extrusion molding is 250 DEG C to material.
Specifically, the additive includes that toughener, coupling agent, lubricant, antioxidant, age resister, water repellent agent, heat are steady
Determine agent and Masterbatch.Further, toughener, coupling agent, lubricant, antioxidant, age resister, water repellent agent, heat stabilizer
And the parts by weight ratio between Masterbatch is：1:2:1.2:1.5:1.2:1.8:0.8:0.5.Toughener is polyolefin elastomer
Toughener, the coupling agent is silane coupler, and the lubricant is polyol fatty acid, and the age resister is unimolecular
N- alkoxy hindered amine stabilizers, the antioxidant is dibutyl dithiocaarbamate salt, and the heat stabilizer is nanometer
Titanium dioxide, the water repellent agent is melamine resin.In the present embodiment, the PA66 chain guides for finally preparing
Coefficient of friction is 0.051, and it compares relatively low relative to the coefficient of friction 0.08 of UHMWPE chain guides；Meanwhile, PA66 chains are led
The operating temperature range of rail is -50 DEG C～230 DEG C, relative to -200 DEG C of operating temperature range～80 DEG C of UHMWPE chain guides
For, and with more preferable resistance to elevated temperatures；Finally, in the preparation-obtained PA66 chain guides of the present embodiment and prior art
UHMWPE chain guides mechanical property correction data it is as shown in the table：
Because PA66 (polyamide) has certain water absorption character, therefore add water repellent agent, Neng Gourang in the present embodiment
The water absorption rate of PA66 chain guides is reduced to less than 1%；Meanwhile, by adding glass fibre in the feed, can play by
PA66 chain guides are because size distortion is significantly reduced caused by water suction institute.Preferably, the fibre length of glass fibre is maintained at
Between 50 microns～100 microns, and most preferably 50 microns.
Embodiment two：
A kind of preparation method of PA66 chain guides, comprises the following steps：Step (1) is once granulated：By PA66 and addition
Agent carries out according to a certain percentage first time granulation process in comminutor, wherein, PA66：70 parts；Additive：15 parts.Step (2)
Drying and processing：Raw material after granulation is processed is dried 4 hours in dryer, and the drying temperature for setting of dryer is as 140 DEG C.
Step (3) secondary granulation：Glass fibre is added to be made for the second time in comminutor according to a certain percentage the raw material after drying
Grain is processed, wherein, dried raw material：90 parts；Glass fibre：40 parts.Step (4) extrusion molding：By the original after secondary granulation
By extruder for shaping, the temperature of extrusion molding is 310 DEG C to material.
The present embodiment please join described in embodiment one with identical technical scheme in embodiment one, will not be described here.At this
In embodiment, the operating temperature range of the PA66 chain guides for finally preparing is -50 DEG C～233 DEG C.In the present embodiment,
The PA66 chain guides coefficient of friction for finally preparing is 0.049.
Embodiment three：
A kind of preparation method of PA66 chain guides, comprises the following steps：Step (1) is once granulated：By PA66 and addition
Agent carries out according to a certain percentage first time granulation process in comminutor, wherein, PA66：60 parts；Additive：8 parts.Step (2)
Drying and processing：Raw material after granulation is processed is dried 3 hours in dryer, and the drying temperature for setting of dryer is as 100 DEG C.
Step (3) secondary granulation：Glass fibre is added to be made for the second time in comminutor according to a certain percentage the raw material after drying
Grain is processed, wherein, dried raw material：60 parts；Glass fibre：35 parts.Step (4) extrusion molding：By the original after secondary granulation
By extruder for shaping, the temperature of extrusion molding is 275 DEG C to material.
The present embodiment please join described in embodiment one with identical technical scheme in embodiment one, will not be described here.At this
In embodiment, the operating temperature range of the PA66 chain guides for finally preparing is -50 DEG C～231 DEG C.In the present embodiment,
The PA66 chain guides coefficient of friction for finally preparing is 0.053.
Example IV：
The invention provides a kind of preparation method of PA66 chain guides, comprises the following steps：Step (1) is once granulated：
PA66 and additive are carried out into according to a certain percentage first time granulation process in comminutor, wherein, PA66：66 parts；Additive：
10 parts.Step (2) drying and processing：Raw material after granulation is processed is dried 4 hours in dryer, the drying of the setting of dryer
Temperature is 110 DEG C.Step (3) secondary granulation：Add glass fibre according to a certain percentage in comminutor the raw material after drying
Second granulation process is carried out, wherein, dried raw material：65 parts；Glass fibre：30 parts.Step (4) extrusion molding：By two
By extruder for shaping, the temperature of extrusion molding is 295 DEG C to raw material after secondary granulation.
In the present embodiment, in the step (3), soluble poly silicon organo-metallic oxygen is added in raw material after the drying
Alkane.Specifically, after drying the mass ratio between raw material and soluble polyorganometallosiloxane is 100:2.In the present embodiment
In, the operating temperature range of the PA66 chain guides for finally preparing is -50 DEG C～234 DEG C.In the present embodiment, final system
The standby PA66 chain guides coefficient of friction for obtaining is 0.048.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included within the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity those skilled in the art should
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (6)
- The preparation method of 1.PA66 chain guides, it is characterised in that comprise the following steps：(1) once granulate：PA66 and additive are carried out into according to a certain percentage first time granulation process in comminutor, wherein, PA66：50～70 parts；Additive：1～15 part；(2) drying and processing：Raw material after granulation is processed is dried 2～4 hours in dryer, the drying temperature of the setting of dryer Spend for 90 DEG C～140 DEG C；(3) secondary granulation：Glass fibre is added to be made for the second time in comminutor according to a certain percentage the raw material after drying Grain is processed, wherein, dried raw material：55～90 parts；Glass fibre：30～40 parts；(4) extrusion molding：By the raw material after secondary granulation by extruder for shaping, the temperature of extrusion molding is 250 DEG C～ 310℃。
- 2. preparation method according to claim 1, it is characterised in that the additive includes toughener, coupling agent, lubrication Agent, antioxidant, age resister, water repellent agent, heat stabilizer and Masterbatch.
- 3. preparation method according to claim 2, it is characterised in that the toughener, coupling agent, lubricant, anti-oxidant Parts by weight ratio between agent, age resister, water repellent agent, heat stabilizer and Masterbatch is：1:2:1.2:1.5:1.2:1.8: 0.8:0.5。
- 4. preparation method according to claim 3, it is characterised in that the toughener is polyolefin elastomer toughener, The coupling agent is silane coupler, and the lubricant is polyol fatty acid, and the age resister is unimolecular N- alcoxyls Base hindered amine stabilizer, the antioxidant is dibutyl dithiocaarbamate salt, and the heat stabilizer is nanometer titanium dioxide Titanium, the water repellent agent is melamine resin.
- 5. preparation method according to any one of claim 1 to 4, it is characterised in that in drying in the step (3) Add soluble polyorganometallosiloxane in raw material afterwards.
- 6. preparation method according to claim 5, it is characterised in that the raw material after the drying has with soluble poly metal Mass ratio between organic siloxane is 100:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852688.5A CN106633843A (en) | 2016-09-26 | 2016-09-26 | Preparation method of PA66 chain guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852688.5A CN106633843A (en) | 2016-09-26 | 2016-09-26 | Preparation method of PA66 chain guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106633843A true CN106633843A (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610852688.5A Pending CN106633843A (en) | 2016-09-26 | 2016-09-26 | Preparation method of PA66 chain guide rail |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059357A (en) * | 2014-06-10 | 2014-09-24 | 金发科技股份有限公司 | Guide rail material of glass lifter for vehicle as well as preparation method and application thereof |
| CN104744926A (en) * | 2013-12-30 | 2015-07-01 | 上海杰事杰新材料(集团)股份有限公司 | High wear resistant and high self-lubrication continuous long fiber reinforced high temperature resistant nylon composite material and preparation method thereof |
-
2016
- 2016-09-26 CN CN201610852688.5A patent/CN106633843A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104744926A (en) * | 2013-12-30 | 2015-07-01 | 上海杰事杰新材料(集团)股份有限公司 | High wear resistant and high self-lubrication continuous long fiber reinforced high temperature resistant nylon composite material and preparation method thereof |
| CN104059357A (en) * | 2014-06-10 | 2014-09-24 | 金发科技股份有限公司 | Guide rail material of glass lifter for vehicle as well as preparation method and application thereof |
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Application publication date: 20170510 |