CN101161716A - Plastics-steel composite manhole and preparation method thereof - Google Patents
Plastics-steel composite manhole and preparation method thereof Download PDFInfo
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- CN101161716A CN101161716A CNA2007101133053A CN200710113305A CN101161716A CN 101161716 A CN101161716 A CN 101161716A CN A2007101133053 A CNA2007101133053 A CN A2007101133053A CN 200710113305 A CN200710113305 A CN 200710113305A CN 101161716 A CN101161716 A CN 101161716A
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Abstract
The present invention discloses a composite metal-plastic well cover and a preparation method thereof. The well cover comprises, by the following wt percent, 65 percent-75 percent of PVC, 4 percent-6 percent of fiberglass, 8 percent-12 percent of steel frame, 1.5 percent-2.5 percent of coupling agent, 1 percent-3 percent of anti-aging agent, 0 percent-12 percent of silicate and 0 percent-2 percent of brightening agent. The impact resilience and bearing capacity is improved substantially. Taken lightweight well cover with a thickness of 4.5mm as an example, the breaking load of the well cover of the invention is not less than 340KN, according to the standard CJ/T121-2000.
Description
Technical field
The present invention relates to a kind of well lid and preparation method thereof, particularly a kind of plastics-steel composite manhole and preparation method thereof.Described well lid is the well lid that is mainly used in the various inspection chambers in street or road surface, sub-district.
Background technology
Existing well lid mainly comprises the metal well lid, cement well lid and silicon plastic well lid etc.Wherein, it is big that the metal well lid has intensity, the advantage that bearing capacity is strong, but its cost height easily gets rusty, and easily stolen, noise is big, and weight is big, and construction and maintenance are convenient inadequately.Though cement well lid has the low advantage of cost, exist noise big equally, the shortcoming that weight is big, and also bearing capacity ratio is less.
Silicon plastic well lid is the well lid of a kind of macromolecule material of rising in recent years, and it is little to have proportion, and cost is low, and noise is little, the advantage of easy construction.But find that through using its main drawback is that bearing capacity can not meet the demands, grind the out-of-date phenomenon that has fragmentation or fracture at heavier vehicle and take place.On the other hand, generally outside-10 ℃-+20 ℃, the scope of application is narrower for the shrinkage strain temperature of this product; And easily aging, working life is generally about 5 years.
Summary of the invention
The present invention aims to provide a kind of plastics-steel composite manhole and preparation method thereof, technical problem to be solved is, with the macromolecular material is main raw material, compound small amounts of inorganic material, under the prerequisite that possesses advantages such as the macromolecular material well lid is in light weight, noise is little, cost is low, convenient construction substantially, increase substantially its supporting capacity, temperature variation adaptive faculty and ageing-resistant performance.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of plastics-steel composite manhole is characterized in that: it mainly is made up of according to described part by weight following component:
PVC65-75%, glass fibre 4-6%, steelframe 8-12%, coupling agent 1.5-2.5%, antiaging agent 1-3%, silicate 0-12%, brightener 0-2%.
Preferred ratio is: PVC70%, glass fibre 5%, steelframe 10%, coupling agent 2%, antiaging agent 1.5%, silicate 10%, brightener 1.5%.
The preparation method of this plastics-steel composite manhole is characterized in that:
At first that the material beyond the steelframe is mixing, extrude; After being placed on steelframe on the first layer extruded stock, above steelframe, lay the same extruded stock of the second layer again, use the pressing machine extrusion molding at last;
Wherein, two-layer up and down extruded stock thickness is basic identical; Used steelframe is the basic reticulated structure uniformly of distribution that steel bar is made.
The present invention has following positively effect: (1), shock resistance and supporting capacity obviously improve.With the light-duty well lid of thickness 4.5cm is example, according to the CJ/T121-2000 standard test, and the failing load 〉=340KN of well lid of the present invention, and the failing load of the silicon plastic well lid of same thickness is about 130KN.(2), since solar ultraviolet can't penetrate material of the present invention, so well lid ageing-resistant performance of the present invention is very good, apart from the measuring and calculating, working life is generally above 15 years.(3), indeformable in-40 ℃ of-+50 ℃ of scopes, widened the scope of application greatly.(4), to have cost low, noise is little, easily installs, easy advantage such as unlatchings is simultaneously because substantially recycling value is difficult for stolen.(5), well lid of the present invention in the contraction ratio under high temperature and the low temperature environment about one of seven percentages, suitable with the metal well lid.(6), the preparation method is simple.
Embodiment
Further specify the present invention below in conjunction with specific embodiment.
Embodiment one
At first with 70 parts of PVC (weight part, down with), 5 parts in glass fibre, 2 parts of coupling agents, 1.5 parts of antiaging agents, 10 parts of silicate, 1.5 parts of brighteners, high speed is mixing, extrudes;
After being placed on 10 parts of steelframes on the first layer extruded stock then, above steelframe, lay the same extruded stock of the second layer again;
Use 300 t hydraulic press extrusion moldings at last;
Wherein, two-layer up and down extruded stock thickness is basic identical; Used steelframe is the basic reticulated structure uniformly of distribution that steel bar is made.
Embodiment two
PVC65 part (weight part, down together), 6 parts in glass fibre, 12 parts of steelframes, 2.5 parts of coupling agents, 1 part of antiaging agent, 12 parts of silicate, 1.5 parts of brighteners.
Other are with embodiment one.
Embodiment three
PVC75 part (weight part, down together), 4 parts in glass fibre, 8 parts of steelframes, 1.5 parts of coupling agents, 3 parts of antiaging agents, 7 parts of silicate, 1.5 parts of brighteners.
Other are with embodiment one.
Embodiment four
PVC75 part (weight part, down together), 6 parts in glass fibre, 12 parts of steelframes, 2.5 parts of coupling agents, 2.5 parts of antiaging agents, 2 parts of brighteners.
Other are with embodiment one.
Embodiment five
PVC66.5 part (weight part, down together), 6 parts in glass fibre, 12 parts of steelframes, 2.5 parts of coupling agents, 1 part of antiaging agent, 12 parts of silicate.
Other are with embodiment one.
The brightener that uses in the embodiment of the invention is: the PVC section bar brightener that the new first chemical industry in Great Wall, Jilin limited liability company produces.
The antiaging agent that uses in the embodiment of the invention is: the antioxidant H that Yingkou Tianyuan industry Fine Chemical Co., Ltd produces, chemical name: N, N '-diphenyl-para-phenylene diamine.
The silicate that uses in the embodiment of the invention is: 525 above silicate cements.
The coupling agent that uses in the embodiment of the invention is: the KH-172 type silane coupling agent that Jinan chemical industry company limited of state nation produces, chemical name: vinyl three (b-methoxy ethoxy) silane.
Claims (3)
1. plastics-steel composite manhole, it is characterized in that: it mainly is made up of according to described part by weight following component:
PVC 65-75％，
Glass fibre 4-6%,
Steelframe 8-12%,
Coupling agent 1.5-2.5%,
Antiaging agent 1-3%,
Silicate 0-12%,
Brightener 0-2%.
2. plastics-steel composite manhole according to claim 1 is characterized in that: it is made up of according to described part by weight following component:
PVC 70％，
Glass fibre 5%,
Steelframe 10%,
Coupling agent 2%,
Antiaging agent 1.5%,
Silicate 10%,
Brightener 1.5%.
3. the preparation method of plastics-steel composite manhole as claimed in claim 1 or 2 is characterized in that:
At first that the material beyond the steelframe is mixing, extrude; After being placed on steelframe on the first layer extruded stock, above steelframe, lay the same extruded stock of the second layer again, use the pressing machine extrusion molding at last;
Wherein, two-layer up and down extruded stock thickness is basic identical; Used steelframe is the basic reticulated structure uniformly of distribution that steel bar is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133053A CN101161716A (en) | 2007-09-25 | 2007-09-25 | Plastics-steel composite manhole and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133053A CN101161716A (en) | 2007-09-25 | 2007-09-25 | Plastics-steel composite manhole and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101161716A true CN101161716A (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101133053A Pending CN101161716A (en) | 2007-09-25 | 2007-09-25 | Plastics-steel composite manhole and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942994A (en) * | 2019-04-23 | 2019-06-28 | 江苏拓轶智能科技有限公司 | A kind of high pressure resistance corrosion resistant well lid formula materials and its preparation process |
-
2007
- 2007-09-25 CN CNA2007101133053A patent/CN101161716A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942994A (en) * | 2019-04-23 | 2019-06-28 | 江苏拓轶智能科技有限公司 | A kind of high pressure resistance corrosion resistant well lid formula materials and its preparation process |
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Open date: 20080416 |