CN110319048A - A kind of high-strength vehicle water pump rotor and its manufacturing method - Google Patents
A kind of high-strength vehicle water pump rotor and its manufacturing method Download PDFInfo
- Publication number
- CN110319048A CN110319048A CN201910613900.6A CN201910613900A CN110319048A CN 110319048 A CN110319048 A CN 110319048A CN 201910613900 A CN201910613900 A CN 201910613900A CN 110319048 A CN110319048 A CN 110319048A
- Authority
- CN
- China
- Prior art keywords
- pps
- water pump
- pump rotor
- vehicle water
- strength vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
Abstract
The present invention relates to injection molding permanent-magnet material technical fields, disclose a kind of high-strength vehicle water pump rotor and its manufacturing method.The high-strength vehicle water pump rotor includes the rotor subject that PPS- ferrite is constituted, the encapsulated layer and graphite bearing that modified enhancing PPS is constituted, wherein the modified enhancing PPS is using glass, the modified enhanced PPS of carbon fiber.Glass or the additive amount of carbon fiber must not be higher than 40% in the modified enhancing PPS, preferably 25-35%.High-intensitive automobile water-based pump rotor of the invention by the methods of optimization of material, process modification, the rotor of production compared with the existing technology, have can in the environment of extreme stable operation advantage.
Description
Technical field
The present invention relates to injection molding permanent-magnet material technical field, be specifically related to a kind of high-strength vehicle water pump rotor and its
Manufacturing method.
Background technique
Auto pump generally all has self-suction function, has the micro pump of suction capacity, also referred to as " miniature Absorb Water
Pump ".It combines the advantages of self priming pump and chemical pump, is synthesized using corrosion resistant a variety of imported materials, have it is acidproof, alkaline-resisting,
The performances such as corrosion-resistant；Self-priming speed is exceedingly fast (about 1 second), and suction force is powerful, and suction is up to 5 meters, substantially noiseless；Workmanship is exquisite,
Not only there is self-suction function, but also flow super large (maximum up to 25 liters/min), pressure high (maximum is up to 2.7 kilograms), performance are steady
It is fixed, easy for installation, so commonly using this big flow water pump on new-energy automobile.
Injection moulding is a kind of by the mixing of the powder of magnetic powder and resin, granulation, and particulate material injection is infused after being then granulated
Heating fusing in molding machine in this state has the particulate material with molten condition injection with good mobility
In the metal die of alignment magnetic field, the Magnet of required complicated shape is formed after cooling.Compared to general compression molding, note
The advantages of being moulded into type has: the resin content of 1. particulate materials is formed up to 7%~20%, and under particulate material molten condition, mobility
Well, intensity is higher；2. it is high to form freedom degree, it can be made into device complex-shaped, in irregular shape, and be not required to spraying etc. and is anti-oxidation
Measure；3. can be molded into axis etc. and inlay class product, and it is very high to inlay class product requirement magnet strength；4. briquetting pressure is low, mould
Tool loss is low, in the temperature profile for being higher than the melting point resins such as nylon, PPS when injection molding, and is pressed and molded and is generally room temperature, mould
Tool loss is larger.
The plastics or metallic article that the impeller blade of existing auto pump rotor is one of the forming, there are weight for metallic article
Greatly, the problem of low efficiency etc..And the water pump rotor of the plastic part generallyd use now has that mechanical strength is inadequate,
The problems such as generally existing temperature tolerance is poor, intensity is low uses under most evil bad environment, is easy to appear cracking equal strength problem, most
Lead to the failure of cooling device eventually.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technique, a kind of high-strength vehicle water pump turn is provided
Son and its manufacturing method.High-intensitive automobile water-based pump rotor of the invention passes through the methods of optimization of material, process modification, production
Rotor compared with the existing technology, have can in the environment of extreme stable operation advantage.
Specifically, to achieve the object of the present invention, high-strength vehicle water pump rotor of the present invention includes PPS- ferrite structure
At rotor subject, the encapsulated layer and graphite bearing that modified enhancing PPS is constituted, wherein the modified enhancing PPS is using glass
Fine, the modified enhanced PPS of carbon fiber.
Preferably, glass or the additive amount of carbon fiber must not be higher than 40% in the modified enhancing PPS, preferably 25-35%.
It is further preferred that the modified enhancing PPS is using the modified enhanced PPS of carbon fiber.
Further, in the PPS- ferrite ferromagnetic oxide powder additive amount be PPS silty amount 82wt%-
90wt%, such as 83wt%-86wt%.
Preferably, the ferromagnetic oxide powder is selected from one of Sr ferrite powder, rare earth Nd FeB powder, SmFeN powder or more
Kind.
It is further preferred that the partial size D50 of the ferromagnetic oxide powder is 1.4-1.8 μm.
It is further preferred that the ferromagnetic oxide powder is Sr ferrite powder.
Further, the present invention also provides a kind of preparation method of high-strength vehicle water pump rotor, the party
Method the following steps are included:
(1) it prepares PPS- ferrite: ferromagnetic oxide powder being subjected to surface treatment 20-40min with silane coupling agent, is added
PPS admixture of powder 30-60min extruding pelletization, pelletizing to obtain the final product；
(2) using the graphite bearing of modified enhancing PPS powder bag glue pump rotor；
(3) using the bearing of step (2) production as axis, water pump is obtained as raw material injection molding using the particulate material that step (1) produces
Rotor.
Preferably, blending temperature is 290 DEG C -315 DEG C in the step (1).
Preferably, the magnetic property magnetic energy product of particulate material obtained by pelletizing is 1.3-1.5MGOe in the step (1).
Preferably, encapsulated with a thickness of 1-3mm, such as 1-1.2mm in the step (2).
Preferably, injection pressure of the injection molding molding in 1100~1800bar, the note of 20~45mm/s in the step (3)
Speed is moulded, is carried out under the conditions of 300~340 DEG C of injection temperature.
The advantages that graphite bearing has light weight, and wearability is good, heated to vary less, no friction noise, can be good at
Using in auto pump rotor.But since the shrinking percentage of graphite material differs greatly with material of main part PPS magnetic material,
Under temperature change, when especially being operated under rugged environment, since graphite is inconsistent with the contraction of material of main part junction, it is easy
Product is caused problem of Cracking occur.In order to solve this problem, the present invention coats one layer of modified increasing by using in Bearing outer
Strong PPS, to reduce by 2 kinds of storeroom difference in shrinkage, to having changed a kind of buffering caused by the shrinking percentage difference between material
Effect.
Detailed description of the invention
Fig. 1 is rotor schematic diagram produced by the invention, wherein 1 rotor subject constituted for PPS- ferrite, 2 be enhancing
The encapsulated layer that PPS is constituted, 3 be high-intensitive axis.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.Additional aspect and advantage of the invention will be set forth in part in the description, part
It will become apparent from the description below, or practice through the invention is recognized.It is only used to solve it should be appreciated that being described below
The present invention is released, is not intended to limit the present invention.
Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that covering
Non-exclusionism includes.For example, composition, step, method, product or device comprising listed elements are not necessarily limited to those and want
Element, but may include not expressly listed other elements or such composition, step, method, product or device it is intrinsic
Element.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
Singular includes that plural number discusses object, unless the context clearly dictates otherwise." optional " or it is " any
It is a kind of " refer to that the item described thereafter or event may or may not occur, and the description include situation that event occurs and
The situation that event does not occur.As long as moreover, technical characteristic involved in each embodiment of the present invention non-structure each other
It can be combined with each other at conflict.
By attached drawing 1 it is found that rotor produced by the invention mainly consists of three parts, i.e., high-intensitive axis, encapsulated layer and turn
Sub- main body.The use environment of auto pump rotor is relatively high to material requirements, when especially being run under some adverse circumstances,
Water pump rotor all has high requirements to the temperature tolerance of material, intensity.
The material of main part that the present invention uses is PPS (polyphenylene sulfide) magnetic material high temperature resistant (180 DEG C indeformable), water absorption rate
Low, only 0.02% (20 DEG C, 65%RH), rigidity is good, good corrosion resistance, is the cooling magnetic water pump rotor material of very suitable automobile
Material.Bearing portion is the main force part of rotor, and in rotor operation process, which is easiest to wear, cracking, together
When the position due to friction be easy to produce noise.If directlying adopt material of main part as axis use, over time, it is easy to appear
The problems such as abrasion, cracking, friction noise is big.Therefore, the present invention uses bearing of the graphite material bearing as water pump rotor, stone
There is black bearing light weight, the good feature of wearability, while graphite to have self-lubricating function, and heated to vary less, no friction is made an uproar
The advantages that sound is suitable for use in auto pump rotor.But since the shrinking percentage of graphite material is the same as material of main part PPS magnetism material
Material differs greatly, under temperature change, when especially operating under rugged environment, since graphite is received with material of main part junction
It contracts inconsistent, product is easy to cause problem of Cracking occur.In order to solve this problem, the present invention is by coating one in Bearing outer
The PPS of the modified enhancing of layer, has changed one kind to caused by the shrinking percentage difference between two kinds of different materials of bearing and main body section
The effect of buffering.
It is to the strength test method of gained water pump rotor in the present invention:
(1) it high and low temperature impact test: after product is put into -40 DEG C of cryogenic box 1h, takes out immediately, blade-section is put into 95
DEG C hot water in, continue 1-2min, after taking-up, the problems such as whether rotor will appear cracking seen, so carry out 5 circulation；
(2) high/low temperature food preservation test: rotor product being put under -40 degrees Celsius of environment and is placed for 24 hours, after temperature is slow
125 DEG C are warming up to, constant temperature placement is taken out afterwards for 24 hours, sees whether rotor phenomena such as cracking occurs.
Embodiment and comparative example
A kind of high-strength vehicle water pump rotor the preparation method is as follows:
(1) Sr ferromagnetic oxide powder is subjected to surface treatment 30min with Silane coupling agent KH550, PPS admixture of powder is added
It after 30-60min, is granulated by double screw extruder, water pump rotor material of main part PPS- ferrite particle is obtained by pelletizing afterwards
Material；
(2) graphite or PEEK axle sleeve are put into injection molding machine, by injection molding, to pass through PPS powder as injection raw material packet
Axle sleeve is covered, is coated with a thickness of 1.0mm；
(3) axle sleeve after cladding is put into injection molding machine, the PPS- ferrite particle material by using first step production is original
Material injection molding rotor subject.
It is careful to take out water pump rotor, it is put into pallet cooled to room temperature.Rotor is subjected to high/low temperature punching by preceding method
Test and high/low temperature food preservation test are hit, sees whether product has the problems such as cracking, degumming.
Specifically, the preparation method of each embodiment mixing comparative example water pump rotor is as previously mentioned, material is as shown in table 1.
The main component and proportion of each embodiment and comparative example water pump rotor of table 1
Experimental test result
High and low temperature impact test test, every group of examination are carried out to above-described embodiment and comparative example water pump rotor product produced
Test 15, area sample, (- 40 DEG C~95 DEG C) of high and low temperature impact test amount to loop test 5 times, do not crack as OK, crack as NG；
Shown in concrete outcome table 2.
Each embodiment and comparative example water pump rotor high and low temperature impact test test result of table 2
High/low temperature is carried out to above-described embodiment and comparative example water pump rotor product produced and stores experimental test, every group of examination
Test 15, area sample: rotor product being put under -40 degrees Celsius of environment and is placed for 24 hours, after temperature is to slowly warm up to 125 DEG C
Under, constant temperature placement is taken out afterwards for 24 hours, sees whether rotor phenomena such as cracking occurs, is not cracked as OK, is cracked as NG, as a result 3 institute of table
Show.
Each embodiment and comparative example water pump rotor high/low temperature of table 3 stores experimental test result
As it will be easily appreciated by one skilled in the art that the above description is only an embodiment of the present invention, not to limit
The present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of high-strength vehicle water pump rotor, which is characterized in that the high-strength vehicle water pump rotor includes PPS- iron
The rotor subject that oxysome is constituted, the encapsulated layer and graphite bearing that modified enhancing PPS is constituted, wherein the modified enhancing PPS is to make
With glass, the modified enhanced PPS of carbon fiber.
2. high-strength vehicle water pump rotor according to claim 1, which is characterized in that glass in the modified enhancing PPS
Fine or carbon fiber additive amount must not be higher than 40%, preferably 25-35%；It is further preferred that the modified enhancing PPS be using
The modified enhanced PPS of carbon fiber.
3. high-strength vehicle water pump rotor according to claim 1, which is characterized in that iron oxygen in the PPS- ferrite
The additive amount of body magnetic powder is the 82wt%-90wt% of PPS silty amount.
4. high-strength vehicle water pump rotor according to claim 1, which is characterized in that iron oxygen in the PPS- ferrite
The additive amount of body magnetic powder is the 83wt%-86wt% of PPS silty amount.
5. high-strength vehicle water pump rotor according to claim 1, which is characterized in that the ferromagnetic oxide powder is selected from Sr
One of ferrite powder, rare earth Nd FeB powder, SmFeN powder are a variety of；Preferably, the partial size D50 of the ferromagnetic oxide powder is
1.4-1.8μm；It is further preferred that the ferromagnetic oxide powder is Sr ferrite powder.
6. the preparation method of the described in any item high-strength vehicle water pump rotors of claim 1-5, which is characterized in that this method
The following steps are included:
(1) it prepares PPS- ferrite: ferromagnetic oxide powder being subjected to surface treatment 20-40min with silane coupling agent, adds PPS
Admixture of powder 30-60min extruding pelletization, pelletizing to obtain the final product；
(2) using the graphite bearing of modified enhancing PPS powder bag glue pump rotor；
(3) using the bearing of step (2) production as axis, water pump rotor is obtained as raw material injection molding using the particulate material that step (1) produces.
7. the preparation method of high-strength vehicle water pump rotor according to claim 6, which is characterized in that the step
(1) blending temperature is 290 DEG C -315 DEG C in.
8. the preparation method of high-strength vehicle water pump rotor according to claim 6, which is characterized in that the step
(1) the magnetic property magnetic energy product of particulate material obtained by pelletizing is 1.3-1.5MGOe in.
9. the preparation method of high-strength vehicle water pump rotor according to claim 6, which is characterized in that the step
(2) encapsulated with a thickness of 1-3mm, such as 1-1.2mm in.
10. the preparation method of high-strength vehicle water pump rotor according to claim 6, which is characterized in that the step
(3) injection pressure of the injection molding molding in 1100~1800bar, the injection moulding speed of 20~45mm/s, 300~340 DEG C of injection molding in
It is carried out under the conditions of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613900.6A CN110319048A (en) | 2019-07-09 | 2019-07-09 | A kind of high-strength vehicle water pump rotor and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613900.6A CN110319048A (en) | 2019-07-09 | 2019-07-09 | A kind of high-strength vehicle water pump rotor and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319048A true CN110319048A (en) | 2019-10-11 |
Family
ID=68121480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910613900.6A Pending CN110319048A (en) | 2019-07-09 | 2019-07-09 | A kind of high-strength vehicle water pump rotor and its manufacturing method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408230A (en) * | 2011-09-23 | 2012-04-11 | 横店集团东磁股份有限公司 | Ferrite injection molding granule and preparation method thereof |
| CN104333156A (en) * | 2014-11-25 | 2015-02-04 | 盐城工学院 | Rotor magnetic ring of high-efficiency micromotor and manufacturing method of rotor magnetic ring |
| US8967970B2 (en) * | 2009-08-06 | 2015-03-03 | Robert Bosch Gmbh | Fluid pump |
| CN106555765A (en) * | 2015-09-30 | 2017-04-05 | 杭州三花研究院有限公司 | Electric drive pump |
| CN106977921A (en) * | 2017-04-07 | 2017-07-25 | 深圳市华盈新材料有限公司 | Nanometer injection PPS composites and its preparation technology |
| CN106989049A (en) * | 2017-04-05 | 2017-07-28 | 横店集团东磁股份有限公司 | A kind of graphite bearing for cooling down magnetic water pump |
-
2019
- 2019-07-09 CN CN201910613900.6A patent/CN110319048A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8967970B2 (en) * | 2009-08-06 | 2015-03-03 | Robert Bosch Gmbh | Fluid pump |
| CN102408230A (en) * | 2011-09-23 | 2012-04-11 | 横店集团东磁股份有限公司 | Ferrite injection molding granule and preparation method thereof |
| CN104333156A (en) * | 2014-11-25 | 2015-02-04 | 盐城工学院 | Rotor magnetic ring of high-efficiency micromotor and manufacturing method of rotor magnetic ring |
| CN106555765A (en) * | 2015-09-30 | 2017-04-05 | 杭州三花研究院有限公司 | Electric drive pump |
| CN106989049A (en) * | 2017-04-05 | 2017-07-28 | 横店集团东磁股份有限公司 | A kind of graphite bearing for cooling down magnetic water pump |
| CN106977921A (en) * | 2017-04-07 | 2017-07-25 | 深圳市华盈新材料有限公司 | Nanometer injection PPS composites and its preparation technology |
Non-Patent Citations (2)
| Title |
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| 力诚教育等: "《PRO/ENGINEER WILDFIRE3.0 中文版 完全自学手册》", 31 January 2008, 四川电子音像出版中心 * |
| 区英鸿等: "《材料手册》", 28 February 1991, 兵器工业出版社 * |
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