CN1124691A - Hot mould and its compression moulding foaming forming process - Google Patents
Hot mould and its compression moulding foaming forming process Download PDFInfo
- Publication number
- CN1124691A CN1124691A CN 94104054 CN94104054A CN1124691A CN 1124691 A CN1124691 A CN 1124691A CN 94104054 CN94104054 CN 94104054 CN 94104054 A CN94104054 A CN 94104054A CN 1124691 A CN1124691 A CN 1124691A
- Authority
- CN
- China
- Prior art keywords
- mold
- formpiston
- hot
- die
- former
- 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.)
- Granted
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000000748 compression moulding Methods 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000465 moulding Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010010 raising Methods 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
Landscapes
- Biological Depolymerization Polymers (AREA)
Abstract
The hot mould and its compression moulding foaming forming process are especially suitable for the products of biodegradable pollution-free foaming material. The hot mold consists of a female mold, a male mold and a molding cavity between the female mold and the male mold, and a certain number of small exhaust holes are formed in the wall of the female mold. The mass of the male die is calculated according to the hot melting amount required by material forming. The compression foaming forming process includes heating the mold to required temperature, setting the material into the heated female mold according to the requirement of the filling amount, closing the male mold fast, opening the mold after the steam exhaust stops and taking out the formed product. Has the obvious characteristics of good forming, light weight, energy and time saving, and the like.
Description
The invention belongs to the mechanical technology technical field, particularly the mould and the moulding process thereof of Biodegradable pollution-free sparkle material (seeing the application for a patent for invention that the applicant submits to Patent Office of the People's Republic of China in 1994.5.10.) manufactured goods.
The present invention is exactly at above-mentioned situation, a kind of hot-die and the moulding foaming shaping process thereof developed according to the Biodegradable pollution-free sparkle properties of materials.
Hot-die of the present invention mainly is made of the molding cavity between formpiston, former and formpiston and the former.On the wall of former, have the breeder tube of some.The quality of formpiston is:
Wherein:
M: the quality of formpiston; D: the weight (be about institute's water content 90%) that needs evaporation water during the Biodegradable pollution-free sparkle forming materials; t
2: the vapourizing temperature of water; t
1: the temperature before the Biodegradable pollution-free sparkle forming materials; i
2: specific heat of water; i
3: the heat of vaporization of water; i
1: the specific heat of mold materials; T
2: the temperature after the mold heated; T
1: the mold temperature during biodegradable finished product depanning;
Hot-die compression moulding foam process of the present invention is to arrive mold heated temperature required earlier, and then the Biodegradable pollution-free sparkle material put into heated former by the requirement of loading, the formpiston that closes rapidly gets final product die sinking after treating that discharge of steam stops in the mould, takes out shaped article.
Accompanying drawing 1 is the mould structure schematic diagram of bowl for snack, is a specific embodiment of hot-die of the present invention.Formpiston 1 is formed by bulk metal turning.Former 3 is that the iron plate punching out with 0.5Mmm～2mm forms, and is more than 1/3 height of bottom, full for ease of material by dredging to the close aperture of several apertures below Φ 0.3mm that have from it, during exhaust, the die cavity planted agent keeps 0.3 atmospheric pressure.For conveniently stripped, on the working face of formpiston and former, scribble one deck polytetrafluoroethylmaterial material.
The hot-die process of present embodiment is: earlier with mold heated to 150 ℃～200 ℃ (can not above 200 ℃), then according to the requirement of loading, with 0.6g/cm
3Calculated value the Biodegradable pollution-free sparkle material is put into heated formpiston, the formpiston that closes rapidly, generally after 2 seconds, material begins violent foaming, and is attended by a large amount of steam raisings.At this moment, the pressure in the mould is very big, and the work that need not remake any heating or cooling just makes the Biodegradable pollution-free sparkle material fill out any old place in the mould molding chamber effectively.Get final product die sinking when discharge of steam stops (generally only needing about 1.5～2 minutes), will take out a bone dry, moulding, complete this moment from mould, and the product that can not be out of shape, and the proportion of this product is 0.2g/cm
3
Utilize hot-die of the present invention and moulding foaming shaping process thereof, with forming process, dried Dry process, type-approval process are accomplished without any letup, energy-and time-economizing not only, and also its product has into The distinguishing features such as type is good, and quality is light. Both can be used for the Biodegradable pollution-free sparkle material Manufactured goods are produced, and also can be widely used in making high density, middle density, low-density fibre The product of material also can be applicable to the fields such as brick making from fly-ash, and food production
Claims (4)
1, a kind of by the hot-die that molding cavity constituted between former, formpiston and formpiston and the former, it is characterized in that:
(1), described former have one the fixed number breeder tube;
(2), the quality of described formpiston is:
Wherein:
M: the quality of formpiston; D: the weight (be about institute's water content 90%) that needs evaporation water during the Biodegradable pollution-free sparkle forming materials; t
2: the vapourizing temperature of water; t
1: the temperature before the Biodegradable pollution-free sparkle forming materials; i
2: specific heat of water; i
3: the heat of vaporization of water; i
1: the specific heat of mold materials; T
2: the temperature after the mold heated; T
1: the mold temperature during biodegradable finished product depanning;
2, hot-die as claimed in claim 1 is characterized in that: scribble one deck polytetrafluoroethylmaterial material on the working face of described formpiston and former.
3, as claim 1,2 described hot-dies, it is characterized in that: on the described former wall from its bottom 1/3 height more than, have the aperture of several apertures below Φ 0.3mm by dredging, and the pressure of described wall-forming cavity of dawn when work remains on 0.3 below the atmospheric pressure to close.
4, a kind of process of utilizing the described hot-die of claim 1 to carry out the die mould foaming, it is characterized in that: earlier mold heated is arrived the needed temperature of forming materials, and then material put into heated formpiston by the requirement of loading, formpiston closes rapidly, after treating that discharge of steam stops in the mould, shaped article is taken out in die sinking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104054 CN1081119C (en) | 1994-05-14 | 1994-05-14 | Hot mould and moulding foaming shaping process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104054 CN1081119C (en) | 1994-05-14 | 1994-05-14 | Hot mould and moulding foaming shaping process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1124691A true CN1124691A (en) | 1996-06-19 |
| CN1081119C CN1081119C (en) | 2002-03-20 |
Family
ID=5031401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94104054 Expired - Fee Related CN1081119C (en) | 1994-05-14 | 1994-05-14 | Hot mould and moulding foaming shaping process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081119C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873810A (en) * | 2012-10-16 | 2013-01-16 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing sound-insulating pad of car trunk |
| CN111158412A (en) * | 2020-03-25 | 2020-05-15 | 湖南飞沃新能源科技股份有限公司 | Bar-shaped object heating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717463B (en) * | 2011-03-29 | 2014-10-22 | 峰盈高分子材料(惠东)有限公司 | Device and method for three-dimensional PU object molding |
-
1994
- 1994-05-14 CN CN 94104054 patent/CN1081119C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873810A (en) * | 2012-10-16 | 2013-01-16 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing sound-insulating pad of car trunk |
| CN102873810B (en) * | 2012-10-16 | 2014-11-19 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing sound-insulating pad of car trunk |
| CN111158412A (en) * | 2020-03-25 | 2020-05-15 | 湖南飞沃新能源科技股份有限公司 | Bar-shaped object heating device |
| CN111158412B (en) * | 2020-03-25 | 2021-04-27 | 湖南飞沃新能源科技股份有限公司 | Bar-shaped object heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1081119C (en) | 2002-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |