CN106870360A - A kind of gear pump case being made up of iron plastic composite materials and its manufacture method - Google Patents
A kind of gear pump case being made up of iron plastic composite materials and its manufacture method Download PDFInfo
- Publication number
- CN106870360A CN106870360A CN201710223066.0A CN201710223066A CN106870360A CN 106870360 A CN106870360 A CN 106870360A CN 201710223066 A CN201710223066 A CN 201710223066A CN 106870360 A CN106870360 A CN 106870360A
- Authority
- CN
- China
- Prior art keywords
- iron
- spheroidal graphite
- graphite cast
- gear pump
- pump case
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7496—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0436—Iron
- F05C2201/0439—Cast iron
- F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of gear pump case being made up of iron plastic composite materials and its manufacture method, it is related to gear pump technical field, the gear pump case includes main body, there is the cavity for accommodating driving gear and driven gear in the main body, the both sides of main body are respectively arranged with the oil inlet and oil-out connected with cavity, main body is in double-decker, the spheroidal graphite cast-iron skeleton of outer wall and internal layer including outer layer, and between outer wall and spheroidal graphite cast-iron skeleton be a hollow interlayer, modified PBT plastic filler is filled with hollow interlayer.Product of the invention has intensity high, and good pressure-resistant performance is lightweight, good heat dissipation effect, the advantages of plasticity is strong.
Description
Technical field
It is specifically a kind of gear pump case being made up of iron plastic composite materials the present invention relates to gear pump technical field
And its manufacture method.
Background technology
Traditional gear pump case is made of homogenous material production, and it is present, and high pressure is yielding, problems of crack.
In order to solve the above problems, the thickness of housing can only be continuously increased, this not only adds cost, also result in assembly volume big, stupid
Heavy and needs are surface-treated, and pollute environment.
The content of the invention
For defect present in prior art, it is made up of iron plastic composite materials it is an object of the invention to provide a kind of
Gear pump case and its manufacture method, high with intensity, good pressure-resistant performance is lightweight, good heat dissipation effect, the advantages of plasticity is strong.
To achieve the above objectives, the present invention is adopted the technical scheme that：A kind of gear pump being made up of iron plastic composite materials
There is the cavity for accommodating driving gear and driven gear in housing and its manufacture method, including main body, the main body, main body
Both sides are respectively arranged with the oil inlet and oil-out connected with cavity, and the main body is in double-decker, including outer layer outer wall and
The spheroidal graphite cast-iron skeleton of internal layer, and be a hollow interlayer between outer wall and spheroidal graphite cast-iron skeleton, filled with modified in hollow interlayer
PBT (polybutylene terephthalate, polybutylene terephthalate (PBT)) plastic filler.
On the basis of above-mentioned technical proposal, the spheroidal graphite cast-iron skeleton is in grid structure.
On the basis of above-mentioned technical proposal, the surface roughness of the spheroidal graphite cast-iron skeleton is Ra25~Ra100.
On the basis of above-mentioned technical proposal, the outer wall is made up of modified PBT plastics.
On the basis of above-mentioned technical proposal, glass is added with the modified PBT plastic filler.
Invention additionally discloses a kind of manufacture method for producing said gear pump case, comprise the following steps：Step S1. will change
Property PBT plastic filler be put into the hopper in injection machine to be heated and be pressed to form melt, hopper temperature is 240 DEG C, plasticizing pressure
It is 85MPa；Step S2. is preheated to default spheroidal graphite cast-iron skeleton；Step S3. places the spheroidal graphite cast-iron skeleton after preheating
In the predeterminated position of injection mold, melt is injected in injection mold, mould-filling time is 22S, nozzle temperature is 200 DEG C；Step
S4. after melt solidification, the pressurize 17S under 80MPa so that modified PBT plastic filler is combined with each other with spheroidal graphite cast-iron skeleton,
And modified PBT plastic filler forms outer wall with the part of injection mold contact outside；Step S5. after die casting cooling after,
Can depanning.
On the basis of above-mentioned technical proposal, the spheroidal graphite cast-iron skeleton, by weight, including：C：3.6~3.9 parts；
Si：2.2~2.5 parts；Mn：0.4~0.6 part；P：0~0.03 part；S：0~0.02 part；Mg：0.02~0.045 part；RE：0.02
~0.04 part.
The beneficial effects of the present invention are：
1st, in the present invention, spheroidal graphite cast-iron skeleton and modified PBT (plus glass) plastic filler are made into iron by Shooting Technique
Modeling engagement, a kind of iron plastic composite materials for making full use of iron, modified PBT (plus glass) plastic properties to be formed.Produce the material
Product have intensity high, good pressure-resistant performance is lightweight, good heat dissipation effect, the advantages of plasticity is strong.
2nd, in the present invention, outer wall is formed by modified PBT (plus glass) plastic injection, therefore its smooth in appearance, neatly, it is not necessary to
Paint treatment is carried out to product surface, cost, and environmental protection is reduced.
3rd, in the present invention, the surface roughness of spheroidal graphite cast-iron skeleton is Ra25~Ra100.Nodular cast iron skeleton does not require outer
Appearance quality, roughness is more poor better, so as to increased the production efficiency of skeleton blank, reduces casting cost.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention middle gear pump case；
Fig. 2 be Fig. 1 in A-A to sectional view.
Reference：
1- main bodys；2- cavitys；3- oil inlets；4- oil-outs；5- outer walls；6- spheroidal graphite cast-iron skeletons；7- modified PBT plastics are filled out
Fill thing.
Specific embodiment
Embodiments of the invention are described below in detail, described embodiment example is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.
In the description of the invention, it is necessary to explanation, for the noun of locality, if any term, " " center ", " is indulged at " laterally (X) "
To (Y) ", " vertical (Z) ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ",
The indicating position such as " level ", " top ", " bottom ", " interior ", " outward ", " clockwise ", " counterclockwise " and position relationship are based on accompanying drawing institute
The orientation or position relationship for showing, are for only for ease of the narration present invention and simplify description, rather than the dress for indicating or implying meaning
Put or element there must be specific orientation, be constructed and operated with particular orientation, it is impossible to be interpreted as limitation specific guarantor of the invention
Shield scope.
With reference to the accompanying drawing of specification, it is further described by specific embodiment of the invention, sends out this
Bright technical scheme and its advantage is clearer, clear and definite.It is exemplary, purport below with reference to Description of Drawings embodiment
It is of the invention explaining, and be not considered as limiting the invention.
Referring to shown in Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of gear pump case being made up of iron plastic composite materials
And its manufacture method, including main body 1, there is the cavity 2 for accommodating driving gear and driven gear in the main body 1, main body 1
Both sides are respectively arranged with the oil inlet 3 and oil-out 4 connected with cavity 2, and main body 1 is in double-decker, including outer layer the He of outer wall 5
The spheroidal graphite cast-iron skeleton 6 of internal layer, specifically, spheroidal graphite cast-iron skeleton 6 is in grid structure, and the surface of spheroidal graphite cast-iron skeleton 6 is thick
Rugosity is Ra25~Ra100.Preferably, outer wall 5 is made up of modified PBT plastics.It is one between outer wall 5 and spheroidal graphite cast-iron skeleton 6
Modified PBT plastic filler 7 is filled with hollow interlayer, hollow interlayer.Specifically, being added with modified PBT plastic filler 7
Glass.
Invention additionally discloses a kind of manufacture method for producing said gear pump case, comprise the following steps：
Be put into for modified PBT plastic filler 7 to be heated in the hopper in injection machine and be pressed to form melt by step S1., hopper
Temperature is 240 DEG C, and plasticizing pressure is 85MPa；
Step S2. is preheated to default spheroidal graphite cast-iron skeleton；Temperature control is at 500 DEG C；
Spheroidal graphite cast-iron skeleton after preheating is placed on step S3. the predeterminated position of injection mold, melt is injected and is molded
In mould, mould-filling time is 22S, and nozzle temperature is 200 DEG C；
After the solidification of step S4. melts, the pressurize 17S under 80MPa so that modified PBT plastic filler 7 and spheroidal graphite cast-iron bone
Frame 6 is combined with each other, and modified PBT plastic filler 7 forms outer wall 5 with the part of injection mold contact outside.
Step S5. is after after die casting cooling, you can depanning.
Specifically, spheroidal graphite cast-iron skeleton 6, by weight, including：
C：3.6~3.9 parts；
Si：2.2~2.5 parts；
Mn：0.4~0.6 part；
P：0~0.03 part；
S：0~0.02 part；
Mg：0.02~0.045 part；
RE：0.02~0.04 part.
The spheroidal graphite cast-iron skeleton 6 has high-fire resistance, toughness, fatigue durability, self-lubricating, low-friction coefficient, weatherability, suction
Water rate is low, and only 0.1%, various physical property (including electrical property) are still kept in wet environment.
Below by two embodiments, the invention will be further described：
Embodiment 1 (is counted) by weight
Spheroidal graphite cast-iron skeleton 7 includes：C：3.6 parts；Si：2.2 parts；Mn：0.4 part；Mg：0.02 part；RE：0.02 part.
Embodiment 2 (is counted) by weight
Spheroidal graphite cast-iron skeleton 7, including：C：3.9 parts；Si：2.5 parts；Mn：0.6 part；P：0.03 part；S：0.02 part；Mg：
0.045 part；RE：0.04 part.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (7)
1. in a kind of gear pump case being made up of iron plastic composite materials and its manufacture method, including main body (1), the main body (1)
With the cavity (2) for accommodating driving gear and driven gear, the both sides of main body (1) are respectively arranged with and are connected with cavity (2)
Oil inlet (3) and oil-out (4), it is characterised in that：The main body (1) is in double-decker, including the outer wall (5) of outer layer and interior
The spheroidal graphite cast-iron skeleton (6) of layer, and be a hollow interlayer between outer wall (5) and spheroidal graphite cast-iron skeleton (6), filling in hollow interlayer
There is modified PBT plastic filler (7).
2. the gear pump case being made up of iron plastic composite materials as claimed in claim 1, it is characterised in that：The spheroidal graphite cast-iron
Skeleton (6) is in grid structure.
3. the gear pump case being made up of iron plastic composite materials as claimed in claim 1, it is characterised in that：The spheroidal graphite cast-iron
The surface roughness of skeleton (6) is Ra25~Ra100.
4. the gear pump case being made up of iron plastic composite materials as claimed in claim 1, it is characterised in that：The outer wall (5)
It is made up of modified PBT plastics.
5. the gear pump case being made up of iron plastic composite materials as claimed in claim 1, it is characterised in that：The modified PBT
Plastic filler is added with glass in (7).
6. a kind of manufacture method for producing gear pump case described in claim 1, it is characterised in that comprise the following steps：
Modified PBT plastic filler (7) is put into be heated in the hopper in injection machine and is pressed to form melt by step S1., hopper temperature
It is 240 DEG C to spend, and plasticizing pressure is 85MPa；
Step S2. is preheated to default spheroidal graphite cast-iron skeleton (6)；
Spheroidal graphite cast-iron skeleton (6) after preheating is placed on step S3. the predeterminated position of injection mold, and melt is injected into injection mould
In tool, mould-filling time is 22S, and nozzle temperature is 200 DEG C；
After the solidification of step S4. melts, the pressurize 17S under 80MPa so that modified PBT plastic filler (7) and spheroidal graphite cast-iron skeleton
(6) it is combined with each other, and modified PBT plastic filler (7) forms outer wall (5) with the part of injection mold contact outside；
Step S5. is after after die casting cooling, you can depanning.
7. manufacture method as claimed in claim 1, it is characterised in that the spheroidal graphite cast-iron skeleton (6), by weight, bag
Include：
C：3.6~3.9 parts；
Si：2.2~2.5 parts；
Mn：0.4~0.6 part；
P：0~0.03 part；
S：0~0.02 part；
Mg：0.02~0.045 part；
RE：0.02~0.04 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223066.0A CN106870360A (en) | 2017-04-07 | 2017-04-07 | A kind of gear pump case being made up of iron plastic composite materials and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223066.0A CN106870360A (en) | 2017-04-07 | 2017-04-07 | A kind of gear pump case being made up of iron plastic composite materials and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870360A true CN106870360A (en) | 2017-06-20 |
Family
ID=59160902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223066.0A Pending CN106870360A (en) | 2017-04-07 | 2017-04-07 | A kind of gear pump case being made up of iron plastic composite materials and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023077204A1 (en) * | 2021-11-08 | 2023-05-11 | Tupy S.A. | Mold for manufacturing an engine casting part for a vehicle from vermicular cast iron alloy, process for manufacturing an engine casting part for a vehicle from vermicular cast iron alloy, and process for assembling a vehicle engine by the combination of parts made from vermicular cast iron alloy and parts made from composites |
| DE102021133396A1 (en) | 2021-12-16 | 2023-06-22 | B.Braun Avitum Ag | Method of making a pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202125722U (en) * | 2011-07-14 | 2012-01-25 | 深圳市好年华模具有限公司 | Injection molding piece internally provided with metal framework in embedded way |
| CN203384043U (en) * | 2013-08-02 | 2014-01-08 | 刘田福 | Gear pump for portable cleaner |
| CN104988381A (en) * | 2015-07-17 | 2015-10-21 | 江苏吉鑫风能科技股份有限公司 | Large-section cast ferrite nodular cast iron and preparation method thereof |
| CN206636778U (en) * | 2017-04-07 | 2017-11-14 | 湖北大旗液压有限公司 | One kind gear pump case made of iron plastic composite materials |
| WO2017220475A1 (en) * | 2016-06-20 | 2017-12-28 | Sonceboz Automotive Sa | Motorised fluid pump with improved heating |
-
2017
- 2017-04-07 CN CN201710223066.0A patent/CN106870360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202125722U (en) * | 2011-07-14 | 2012-01-25 | 深圳市好年华模具有限公司 | Injection molding piece internally provided with metal framework in embedded way |
| CN203384043U (en) * | 2013-08-02 | 2014-01-08 | 刘田福 | Gear pump for portable cleaner |
| CN104988381A (en) * | 2015-07-17 | 2015-10-21 | 江苏吉鑫风能科技股份有限公司 | Large-section cast ferrite nodular cast iron and preparation method thereof |
| WO2017220475A1 (en) * | 2016-06-20 | 2017-12-28 | Sonceboz Automotive Sa | Motorised fluid pump with improved heating |
| CN206636778U (en) * | 2017-04-07 | 2017-11-14 | 湖北大旗液压有限公司 | One kind gear pump case made of iron plastic composite materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023077204A1 (en) * | 2021-11-08 | 2023-05-11 | Tupy S.A. | Mold for manufacturing an engine casting part for a vehicle from vermicular cast iron alloy, process for manufacturing an engine casting part for a vehicle from vermicular cast iron alloy, and process for assembling a vehicle engine by the combination of parts made from vermicular cast iron alloy and parts made from composites |
| DE102021133396A1 (en) | 2021-12-16 | 2023-06-22 | B.Braun Avitum Ag | Method of making a pump |
| EP4202182A1 (en) | 2021-12-16 | 2023-06-28 | B. Braun Avitum AG | Method for producing a pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
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| RJ01 | Rejection of invention patent application after publication |