CN101746009A - Impeller hot pressing manufacturing method - Google Patents
Impeller hot pressing manufacturing method Download PDFInfo
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- CN101746009A CN101746009A CN201010018285A CN201010018285A CN101746009A CN 101746009 A CN101746009 A CN 101746009A CN 201010018285 A CN201010018285 A CN 201010018285A CN 201010018285 A CN201010018285 A CN 201010018285A CN 101746009 A CN101746009 A CN 101746009A
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- China
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- mould
- impeller
- dies
- cleaning
- counterdie
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Abstract
The invention relates to an impeller hot pressing manufacturing method which includes the following steps: step 1, cleaning up impeller dies and coating release agent on the dies; step 2, installing the lower die, a charging barrel and a mandril and aligning the inserts; step 3, weighing the materials according to consumption quota and pouring the materials into the lower die; step 4, installing the upper die and putting the dies onto a press to be closed; step 5, exhausting the air of the dies; step 6, gradually pressing until reaching the prepressing pressure; step 7, after prepressing, heating the dies; step 8, after heating, putting the dies onto the press to be extruded until reaching the dwell pressure; step 9, dwelling under pressure and solidifying, and after that taking off the dies; step 10, demoulding; and step 11, cleaning up the dies and furnishing and cleaning up the impeller. Repeated experiments show that the method has the characteristics of high efficiency, low cost and reasonable technical condition and the piece manufactured through the method is of high quality.
Description
Technical field
The present invention relates to a kind of heat pressing manufacturing method, particularly relate to a kind of heat pressing manufacturing method of draught fan impeller.
Background technology
The hot-forming a kind of process that belongs to the manufacturing field, yet its have the R﹠D cycle long, efficient is low, cost is high, manufacturing standard is not general, process conditions are difficult to determine, the problem of parts quality poor controllability, these have all seriously restricted its development and application.
In hot-forming, the lotus root of material generation a series of physics, chemical change and chemical physics under heat and pressure effect is closed variation, and they are determining final part performance on the one hand, the reasonability of reflection technological parameter; Be subjected to the influence of raw material characteristics and product shape on the other hand again.The hot-forming typical process system of material includes relation, pressure and the time relation of temperature and time.
In recent years, normally used in the blower fan field is the impeller of plastic material, because plastics have acid and alkali-resistance, and the therefore use widely that obtains.But impeller of the prior art as fiberglass, plastic impeller etc., all is after blade, interior wheel disc, outer wheel disc are made respectively, assembles, bonds, rivets, is welded with screw.Such processing technology complexity, time-consuming, effort, the impeller resistance of producing is big, intensity is low, efficient is poor, and the corrosion of normal coping screw or pad are aging and come off, and causes blade to separate, and causes equipment normally not move.Therefore, how using rational heat pressing process to manufacture out the impeller that cost is low, process conditions are reasonable, parts quality is high efficiently, is the difficult problem that this area faces.
Summary of the invention
The purpose of this invention is to provide a kind of efficient height, cost is low, process conditions are reasonable, parts quality is high impeller hot pressing manufacturing method.
For solving the problems of the technologies described above, the present invention takes following technical scheme: a kind of impeller hot pressing manufacturing method, and its step is as follows:
Step 1, cleaning impeller mold, coating release agent on described mould; Described impeller mold has patrix, middle mould, counterdie three parts;
Step 2 is installed counterdie, barrel and plug, and is put positive inserts;
Step 3 takes by weighing material by the norm quota of consumption, and described material is poured in the counterdie; Described material is a ultra-high molecular weight polyethylene;
Step 4 is installed described patrix, uses press mold closing on the mould;
Step 5, described die venting;
Step 6 slowly is forced into preload pressure; Described preload pressure is 12 ± 0.5MPa, and squeeze time is 6 minutes, exhaust at least twice therebetween;
Step 7, precompressed with described mold heated, and makes described material remain on 290 ± 10 ℃ after finishing, and described patrix, middle mould, counterdie all remain on 490 ± 10 ℃, and the time of described heating is 480 ± 5 minutes;
Step 8, after heating finished, press was squeezed to dwell pressure on the described mould; Described dwell pressure is 15 ± 0.5MPa, and the dwell time is 240 ± 10 minutes;
Step 9, pressurize is solidified, and takes off described mould after the end;
Step 10, the demoulding;
Step 11, the cleaning mould is modified the cleaning impeller.
Described method obtains through repetition test, has efficient height, cost is low, process conditions are reasonable, parts quality is high characteristics.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated.
The concrete steps of the draught fan impeller heat pressing process among the present invention are as follows:
Step 1, cleaning impeller mold, coating release agent on described mould.Described impeller mold has patrix, middle mould, counterdie three parts.
Step 2 is installed counterdie, barrel and plug, and puts positive inserts (noting the direction of inserts).
Step 3 takes by weighing material with table scale by the norm quota of consumption, and described material is poured in the counterdie.Described material is a ultra-high molecular weight polyethylene.
Step 4 is installed patrix, uses press mold closing on the mould.
Step 5, die venting.
Step 6 slowly is forced into preload pressure 12 ± 0.5MPa, and squeeze time is 6 minutes, exhaust therebetween twice, each 0.5 minute.
Step 7, after precompressed finished, mould was sent in the baking oven and is heated, and makes material remain on 290 ± 10 ℃, and patrix, middle mould, counterdie all remain on 490 ± 10 ℃, and be 480 ± 5 minutes heat time heating time.
Step 8, after heating finished, press was squeezed to dwell pressure 15 ± 0.5MPa on the mould, and the dwell time is 240 ± 10 minutes.
Step 9, pressurize is solidified, and finishes the back mold removal.
Step 10 is utilized the annex demoulding, and described annex is iron block, demoulding frame and copper rod.
Step 11, the cleaning mould is modified the cleaning impeller.
Step 12, after the slide measure check, warehouse-in.
Monitoring regulation: to heating temperature ℃, time, dwell pressure, time; Preload pressure, time, the upper and lower in accordance with regulations noon respectively writes down once, and the every batch record of single-piece little finger of toe once.
Claims (5)
1. impeller hot pressing manufacturing method, its step is as follows:
Step 1, cleaning impeller mold, coating release agent on described mould; Described impeller mold has patrix, middle mould, counterdie three parts;
Step 2 is installed counterdie, barrel and plug, and is put positive inserts;
Step 3 takes by weighing material by the norm quota of consumption, and described material is poured in the counterdie; Described material is a ultra-high molecular weight polyethylene;
Step 4 is installed described patrix, uses press mold closing on the mould;
Step 5, described die venting;
Step 6 slowly is forced into preload pressure; Described preload pressure is 12 ± 0.5MPa, and squeeze time is 6 minutes, exhaust at least twice therebetween;
Step 7, precompressed with described mold heated, and makes described material remain on 290 ± 10 ℃ after finishing, and described patrix, middle mould, counterdie all remain on 490 ± 10 ℃, and the time of described heating is 480 ± 5 minutes;
Step 8, after heating finished, press was squeezed to dwell pressure on the described mould; Described dwell pressure is 15 ± 0.5MPa, and the dwell time is 240 ± 10 minutes;
Step 9, pressurize is solidified, and takes off described mould after the end;
Step 10, the demoulding;
Step 11, the cleaning mould is modified the cleaning impeller.
2. the method for claim 1, it is characterized in that: the exhaust number of times in the described step 6 is twice, each 0.5 minute.
3. the method for claim 1, it is characterized in that: the heating in the described step 7 is undertaken by mould being placed baking oven.
4. the method for claim 1 is characterized in that: described step 10 use iron block, demoulding frame and the copper rod demoulding.
5. as each described method of claim 1-4, it is characterized in that: also comprise step 12, after the slide measure check, warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010018285A CN101746009A (en) | 2010-01-22 | 2010-01-22 | Impeller hot pressing manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010018285A CN101746009A (en) | 2010-01-22 | 2010-01-22 | Impeller hot pressing manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101746009A true CN101746009A (en) | 2010-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010018285A Pending CN101746009A (en) | 2010-01-22 | 2010-01-22 | Impeller hot pressing manufacturing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101746009A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011752A (en) * | 2010-12-20 | 2011-04-13 | 山东大学 | Manufacturing process of variable-curvature profile and cambered front-disk multi-blade centrifugal fan impeller |
| CN103522475A (en) * | 2013-10-22 | 2014-01-22 | 苏州安洁科技股份有限公司 | Method for precise three-dimensional hot-press forming |
| CN109352892A (en) * | 2018-09-29 | 2019-02-19 | 鸿浩泵业有限公司 | A kind of compacting tool set and drawing method of the inclined difluoro impeller with rotating ring |
-
2010
- 2010-01-22 CN CN201010018285A patent/CN101746009A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011752A (en) * | 2010-12-20 | 2011-04-13 | 山东大学 | Manufacturing process of variable-curvature profile and cambered front-disk multi-blade centrifugal fan impeller |
| CN103522475A (en) * | 2013-10-22 | 2014-01-22 | 苏州安洁科技股份有限公司 | Method for precise three-dimensional hot-press forming |
| CN103522475B (en) * | 2013-10-22 | 2016-04-13 | 苏州安洁科技股份有限公司 | A kind of method that precision three-dimensional is hot-forming |
| CN109352892A (en) * | 2018-09-29 | 2019-02-19 | 鸿浩泵业有限公司 | A kind of compacting tool set and drawing method of the inclined difluoro impeller with rotating ring |
| CN109352892B (en) * | 2018-09-29 | 2023-09-08 | 鸿浩泵业有限公司 | Pressing die and pressing method for vinylidene fluoride impeller with movable ring |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |