CN103030878A - High strength composite manhole cover and its manufacturing method - Google Patents
High strength composite manhole cover and its manufacturing method Download PDFInfo
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- CN103030878A CN103030878A CN2011102916057A CN201110291605A CN103030878A CN 103030878 A CN103030878 A CN 103030878A CN 2011102916057 A CN2011102916057 A CN 2011102916057A CN 201110291605 A CN201110291605 A CN 201110291605A CN 103030878 A CN103030878 A CN 103030878A
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- strength composite
- catch basin
- basin cover
- cover according
- manhole cover
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Abstract
The invention relates to a high strength composite manhole cover and its manufacturing method. The manhole cover is manufactured from the following raw materials by weight: 20-50 parts of polypropylene plastics, 10-20 parts of glass fibers, and 30-50 parts of light calcium carbonate. The method includes: mixing the raw materials according to the weight parts, conducting stirring and wire drawing, pelletizing the mixture into particles by a pelletizer under high temperature, and then employing a special vertical injection molding machine to conduct secondary processing and injecting the plastic particles into a steel skeleton-equipped mold to perform cooling shaping. With good compressive strength and strong toughness, the composite manhole cover cannot break when it falls from high buildings, can guard against theft naturally (as its materials has no reutilization value), has no noise, can resist corrosion by acid, alkali, oil and various chemical agents, and has a fire prevention effect. With a beautiful appearance, the product can be made into various colors and character patterns, and has a long service life.
Description
Technical field
The present invention relates to a kind of well lid, more specifically, the present invention relates to a kind of high-strength composite catch basin cover and manufacture method thereof, especially a kind of ultimate compression strength is high, without noise, can be naturally antitheft composite manhole cover and manufacture method thereof.
Background technology
At present, the inspection well cover mostly made for cast iron, steel fibre cement, glass reinforced plastic and fibrous magnesium oxide are compound etc. of existing well lid.The material that these well lids have can recycle, so often occur stolen, such as casting iron well lid, in order to prevent the stolen well lid locking device that often adopts of casting iron well lid, this has not only strengthened expense, also brought many inconvenience, the reason owing to the well lid material that has often occur fracture, broken, renovate, waft, oxidation, the drawback such as the life-span is short, noise is large, brought trouble to the city Road construction department that has stable political situation.Simultaneously, also bring and cause various traffic accidents, as: people and vehicle fall the phenomenons such as well, overturning, even cause life danger.
Summary of the invention
In order to address the above problem, the invention discloses a kind of high-strength composite catch basin cover, its raw material manufacturing by following weight part forms: thermoplastic material 20-100 part, organic fibre 10-50 weight part, filler 10-100 weight part.
As an optimal technical scheme of the present invention, the weight ratio of each raw material is thermoplastic material 20-50 part, organic fibre 10-20 weight part, filler 10-50 weight part.
Thermoplastic material of the present invention can be selected from vinyon, acrylic plastering, polybutene plastics, ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR) etc., optimization polypropylene plastics; Organic fibre can be selected from glass fibre, tynex, trevira, polyetheretherketonefiber fiber etc., preferred glass fibers, and the form of glass fibre is glass fiber more preferably.Filler can be the mineral filler of commonly using, such as calcium carbonate, silicon-dioxide, barium sulfate, white carbon black, wilkinite etc., preferred calcium carbonate, more preferably light calcium carbonate.
The present invention also provides the manufacture method of this high-strength composite catch basin cover, and it may further comprise the steps:
(1) raw material with above-mentioned weight part mixes and fully stirring;
(2) with tablets press to mixture pelleting;
(3) with moulding in the material injecting mould of injection moulding machine after with granulation.
Wherein the temperature of injection moulding machine is 100-250 ℃.
The present invention compared with prior art, its ultimate compression strength is good, is generally the various products such as 1 ton to 100 tons, good toughness, high building are thrown can be not broken, better than existing any well lid intensity.Can be naturally antitheft (its material without again with being worth), without noise, can acid-proof, alkali, the corrosion of the various chemical agents of wet goods can be prevented fires, product is attractive in appearance, can make color and printed words, long service life.
Embodiment
Embodiment 1
With acrylic plastering 40kg, glass fiber 10kg, light calcium carbonate 50kg mix and fully stir; With tablets press to mixture pelleting.Lower to inject die for molding be composite manhole cover at 100 ℃ with the raw material of injection moulding machine after with granulation.
Its intensity is tested, and the discovery ultimate load is 36T.
Embodiment 2
With acrylic plastering 50kg, glass fiber 20kg, light calcium carbonate 30kg mix and fully stir; With tablets press to mixture pelleting.Lower to inject die for molding be composite manhole cover at 100 ℃ with the raw material of injection moulding machine after with granulation.
Its intensity is tested, and the discovery ultimate load is 36T.
Embodiment 3
With acrylic plastering 100kg, glass fiber 50kg, light calcium carbonate 100kg mix and fully stir; With tablets press to mixture pelleting.Lower to inject die for molding be composite manhole cover at 100 ℃ with the raw material of injection moulding machine after with granulation.
Its intensity is tested, and the discovery ultimate load is 75T.
As seen composite manhole cover intensity of the present invention is high, and its material there is no with being worth again, can be naturally antitheft, and composite manhole cover not be because its material can produce noise simultaneously, can acid-proof, the corrosion of the chemical reagent such as alkali, long service life.
The above describes the present invention with way of example, but the invention is not restricted to above-mentioned specific embodiment, and all any change or modification of doing based on the present invention all belong to the scope of protection of present invention.
Claims (10)
1. high-strength composite catch basin cover, its raw material manufacturing by following weight part forms: thermoplastic material 20-100 part, organic fibre 10-50 weight part, filler 10-100 weight part.
2. high-strength composite catch basin cover according to claim 1, wherein the weight ratio of each raw material is thermoplastic material 20-50 part, organic fibre 10-20 weight part, filler 10-50 weight part.
3. high-strength composite catch basin cover according to claim 1 and 2, wherein said thermoplastic material is selected from vinyon, acrylic plastering, polybutene plastics, ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR).
4. high-strength composite catch basin cover according to claim 3, wherein said thermoplastic material is acrylic plastering.
5. high-strength composite catch basin cover according to claim 1 and 2, wherein said organic fibre is selected from glass fibre, tynex, trevira, polyetheretherketonefiber fiber.
6. high-strength composite catch basin cover according to claim 5, wherein said organic fibre is glass fibre.
7. high-strength composite catch basin cover according to claim 1 and 2, wherein said filler is selected from calcium carbonate, silicon-dioxide, barium sulfate, white carbon black, wilkinite.
8. high-strength composite catch basin cover according to claim 7, wherein said filler is light calcium carbonate.
9. method of making each described high-strength composite catch basin cover of claim 1-8, it may further comprise the steps:
(1) raw material is mixed also fully stirring;
(2) with tablets press to mixture pelleting;
(3) with moulding in the material injecting mould of injection moulding machine after with granulation.
10. method according to claim 9, the injection temperature of wherein said injection moulding machine is 100-250
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102916057A CN103030878A (en) | 2011-09-30 | 2011-09-30 | High strength composite manhole cover and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102916057A CN103030878A (en) | 2011-09-30 | 2011-09-30 | High strength composite manhole cover and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103030878A true CN103030878A (en) | 2013-04-10 |
Family
ID=48018304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102916057A Pending CN103030878A (en) | 2011-09-30 | 2011-09-30 | High strength composite manhole cover and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103030878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254103A (en) * | 2017-06-27 | 2017-10-17 | 苏州菱慧电子科技有限公司 | A kind of electronic product insulating materials |
| GB2541694B (en) * | 2015-08-26 | 2019-08-14 | A2B Plastics Ltd | Access cover or grate for use in paved surface |
| CN113214567A (en) * | 2021-01-20 | 2021-08-06 | 苏州工业园区宏图精密科技有限公司 | Corrosion-resistant plastic lower cover and manufacturing process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990961A (en) * | 2005-12-28 | 2007-07-04 | 曾建祥 | Composite material moulded well covers |
-
2011
- 2011-09-30 CN CN2011102916057A patent/CN103030878A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990961A (en) * | 2005-12-28 | 2007-07-04 | 曾建祥 | Composite material moulded well covers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541694B (en) * | 2015-08-26 | 2019-08-14 | A2B Plastics Ltd | Access cover or grate for use in paved surface |
| CN107254103A (en) * | 2017-06-27 | 2017-10-17 | 苏州菱慧电子科技有限公司 | A kind of electronic product insulating materials |
| CN113214567A (en) * | 2021-01-20 | 2021-08-06 | 苏州工业园区宏图精密科技有限公司 | Corrosion-resistant plastic lower cover and manufacturing process thereof |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130410 |