CN109249557A - A kind of technique that addition macromolecule increases MIM feeding cycle life - Google Patents
A kind of technique that addition macromolecule increases MIM feeding cycle life Download PDFInfo
- Publication number
- CN109249557A CN109249557A CN201710571812.5A CN201710571812A CN109249557A CN 109249557 A CN109249557 A CN 109249557A CN 201710571812 A CN201710571812 A CN 201710571812A CN 109249557 A CN109249557 A CN 109249557A
- Authority
- CN
- China
- Prior art keywords
- feeding
- dull material
- dull
- macromolecule
- technique
- 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
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
A kind of addition macromolecule increases the technique of MIM feeding cycle life, and the present invention relates to feeding circulation technology technical fields；Its processing step is as follows: the macromolecule mixture of the dull material weight of 1.5-2.5% is added into dull material；After kneading machine temperature is raised to 175-185 DEG C and is stablized, setting speed 20-25r/min will be added in kneading machine together containing high molecular dull material and the bonding agent for the ratio for preparing, be kneaded；The pelletizer that mixed feeding uses is granulated again；The flow velocity of finally obtained granulation material reaches 600-700, can normal injection again.By adding a certain proportion of macromolecule in dull material, in the case where not influencing plastic injection quality and sintered dimensions, dull material is injected again, greatly reduce materials cost, practicability is stronger.
Description
Technical field
The present invention relates to feeding circulation technology technical fields, and in particular to a kind of addition macromolecule increase MIM feeding circulation
The technique in service life.
Background technique
During the injection circulation of MIM raw material, since material temperature is all at 200 DEG C or 200 DEG C or more, the bonding agent in raw material is all
Can exist partially carbonized or decompose, cause the mobility of raw material slowly to decline, through circulation after a period of time, raw material is due to flow velocity
It is too low, product injections difficult or it can not inject, cause raw material dull or scrap, it would be highly desirable to improve.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of easy to operate, design is reasonable
The technique that macromolecule increases MIM feeding cycle life is added, by adding a certain proportion of macromolecule in dull material, not
In the case where influencing plastic injection quality and sintered dimensions, dull material is injected again, greatly reduces materials cost, practicability
It is stronger.
To achieve the above object, the technical solution adopted by the present invention is that: its processing step is as follows:
1, when MIM feeding is after high temperature injection recycles, the MFI of feeding can gradually decrease to 200, become dull material, this
When into dull material add the dull material weight of 1.5-2.5% macromolecule mixture, obtain containing high molecular dull material；
2, after kneading machine temperature being raised to 175-185 DEG C and stablized, setting speed 20-25r/min will contain in step 1
There are high molecular dull material and the bonding agent for the ratio for preparing to be added in kneading machine together, is kneaded 0.5h；Then setting speed 35-
40r/min is kneaded 1.5h, obtains feeding；
3, set pelletizer temperature as 175-185 DEG C, set host frequency as 25-35, double wrist frequencies be 25-35, cutter
Frequency is 40-50, then the pelletizer that feeding mixed in step 2 uses is granulated；
4, the flow velocity of finally obtained granulation material reaches 600-700, can normal injection again.
Further, the macromolecule mixture in the step 1 is that the EVA and 0.5 ‰ of 1 ‰ -2 ‰ dull material weight is slow-witted
The antioxidant mixture of stagnant material weight.
After above-mentioned technique, the invention has the following beneficial effects:
1, the flow velocity after MIM feeding is recycled is improved；
2, the quantity of dull material, material saving cost are reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is process flow chart of the invention.
Fig. 2 is the performance comparison figure of the present invention with the prior art.
Specific embodiment
The present invention will be further described below with reference to the drawings.
Referring to as depicted in figs. 1 and 2, present embodiment the technical solution adopted is that: its processing step is as follows:
1, when MIM feeding is after high temperature injection recycles, the MFI of feeding can gradually decrease to 200, become dull material, this
When into dull material add 1 ‰ -2 ‰ dull material weight the dull material weight of EVA and 0.5 ‰ antioxidant, obtain containing high score
The dull material of son；
2, after kneading machine temperature being raised to 180 DEG C and stablized, setting speed 25r/min will contain macromolecule in step 1
Dull material and prepare the bonding agent of ratio and be added in kneading machine together, be kneaded 0.5h；Then setting speed 40r/min is kneaded
1.5h obtains feeding；
3, set pelletizer temperature as 185 DEG C, set host frequency as 35, double wrist frequencies be 35, cutter frequency is 40, then
The pelletizer that feeding mixed in step 2 uses is granulated；
4, the flow velocity of finally obtained granulation material reaches 600-700, can normal injection again.
After above-mentioned technique, present embodiment has the beneficial effect that present embodiment provides a kind of operation letter
It is single, the technique that reasonable addition macromolecule increases MIM feeding cycle life is designed, by adding certain proportion in dull material
Macromolecule dull material is injected again, greatly reduces use in the case where not influencing plastic injection quality and sintered dimensions
Expect cost, practicability is stronger.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (2)
1. a kind of technique that addition macromolecule increases MIM feeding cycle life, it is characterised in that: its processing step is as follows:
(1), when MIM feeding is after high temperature injection recycles, the MFI of feeding can gradually decrease to 200, become dull material, at this time
The macromolecule mixture that the dull material weight of 1.5-2.5% is added into dull material, obtains containing high molecular dull material；
(2), after kneading machine temperature being raised to 175-185 DEG C and stablized, setting speed 20-25r/min will contain in step (1)
There are high molecular dull material and the bonding agent for the ratio for preparing to be added in kneading machine together, is kneaded 0.5h；Then setting speed 35-
40r/min is kneaded 1.5h, obtains feeding；
(3), set pelletizer temperature as 175-185 DEG C, set host frequency as 25-35, double wrist frequencies be 25-35, cutter frequency
Rate is 40-50, then the pelletizer that feeding mixed in step (2) uses is granulated；
(4), the flow velocity of finally obtained granulation material reaches 600-700, can normal injection again.
2. a kind of technique that addition macromolecule increases MIM feeding cycle life according to claim 1, it is characterised in that:
Macromolecule mixture in the step (1) is the antioxygen of the dull material weight of EVA and 0.5 ‰ of 1 ‰ -2 ‰ dull material weight
Agent composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571812.5A CN109249557A (en) | 2017-07-13 | 2017-07-13 | A kind of technique that addition macromolecule increases MIM feeding cycle life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571812.5A CN109249557A (en) | 2017-07-13 | 2017-07-13 | A kind of technique that addition macromolecule increases MIM feeding cycle life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109249557A true CN109249557A (en) | 2019-01-22 |
Family
ID=65050642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710571812.5A Pending CN109249557A (en) | 2017-07-13 | 2017-07-13 | A kind of technique that addition macromolecule increases MIM feeding cycle life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109249557A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08311504A (en) * | 1995-05-16 | 1996-11-26 | Japan Steel Works Ltd:The | Method for recovering metal powder composition and lactide, method for recycling organic binder and production of metallic formed article |
| JPH08311503A (en) * | 1995-05-18 | 1996-11-26 | Olympus Optical Co Ltd | Method for recycling compound for injection molding of metallic powder |
| CN101037579A (en) * | 2006-03-14 | 2007-09-19 | 中南大学 | Adhesive for powder injection forming and preparation method thereof |
| CN104227003A (en) * | 2014-09-01 | 2014-12-24 | 东莞劲胜精密组件股份有限公司 | Preparation method of powder injection molded feeding material |
| CN105728730A (en) * | 2016-04-08 | 2016-07-06 | 玉溪大红山矿业有限公司 | Stainless steel-based feedstock for injection molding and preparation method thereof |
| CN106282624A (en) * | 2016-08-10 | 2017-01-04 | 中山市奥博精密科技有限公司 | A kind of high-gravity tungsten-base alloy and preparation method thereof |
-
2017
- 2017-07-13 CN CN201710571812.5A patent/CN109249557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08311504A (en) * | 1995-05-16 | 1996-11-26 | Japan Steel Works Ltd:The | Method for recovering metal powder composition and lactide, method for recycling organic binder and production of metallic formed article |
| JPH08311503A (en) * | 1995-05-18 | 1996-11-26 | Olympus Optical Co Ltd | Method for recycling compound for injection molding of metallic powder |
| CN101037579A (en) * | 2006-03-14 | 2007-09-19 | 中南大学 | Adhesive for powder injection forming and preparation method thereof |
| CN104227003A (en) * | 2014-09-01 | 2014-12-24 | 东莞劲胜精密组件股份有限公司 | Preparation method of powder injection molded feeding material |
| CN105728730A (en) * | 2016-04-08 | 2016-07-06 | 玉溪大红山矿业有限公司 | Stainless steel-based feedstock for injection molding and preparation method thereof |
| CN106282624A (en) * | 2016-08-10 | 2017-01-04 | 中山市奥博精密科技有限公司 | A kind of high-gravity tungsten-base alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204294277U (en) | A kind of modified waste recovery reducing mechanism | |
| CN204712263U (en) | A kind of ceramic mud classification associating Preparation equipment | |
| CN109249557A (en) | A kind of technique that addition macromolecule increases MIM feeding cycle life | |
| CN204672255U (en) | Biomass fuel extrusion molding apparatus | |
| CN107033482B (en) | A kind of PVC foam profile and preparation method thereof | |
| CN104893047A (en) | High-temperature-resistant hydrogenated nitrile base rubber compound and preparation method thereof | |
| CN105664794A (en) | Equipment for preparing charcoal rods through extruding charcoal powder | |
| CN104974328A (en) | Material special for animal ear tag and preparation method of material | |
| CN204122058U (en) | The antiseized glutinous rabbling mechanism of a kind of feed premixed | |
| CN203210652U (en) | Single screw extruder ultrasonic feeding device for wood-plastic material processing | |
| CN102775639A (en) | Milled fiber and glass fiber net cover containing same, and manufacture method thereof | |
| CN202846749U (en) | Twin-screw extruder | |
| CN106187017A (en) | A kind of for making the compound of high-abrasive material and making the method for this high-abrasive material | |
| CN105131567A (en) | Polyurethane rubber PTMEG-F composite material and preparation method thereof | |
| CN204566470U (en) | A kind of feed bin stirred | |
| CN102965740B (en) | Deep-groove screw for polyester fiber spinning regeneration | |
| CN107813448A (en) | A kind of friction plate production technology | |
| CN204470073U (en) | Be applicable to the screening plant of feather polypeptide powder | |
| CN105219094A (en) | Single component add-on type platinum vulcanizing agent and preparation method thereof | |
| CN103171111A (en) | Ultrasound feeding device of single-screw extruder for machining wood-plastic materials | |
| CN103406058A (en) | Novel agitating vane | |
| CN103173877B (en) | A kind of rubber latex thread separates guiding regulating device and control method | |
| CN108623285A (en) | Sludge brick processing technology | |
| CN204746202U (en) | Mixer | |
| CN204656469U (en) | A kind of dispersion machine dispersion bucket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190122 |
|
| RJ01 | Rejection of invention patent application after publication |