CN1598170A - Cover made by macromolecular composite material and its mfg. method - Google Patents
Cover made by macromolecular composite material and its mfg. method Download PDFInfo
- Publication number
- CN1598170A CN1598170A CN 200410040426 CN200410040426A CN1598170A CN 1598170 A CN1598170 A CN 1598170A CN 200410040426 CN200410040426 CN 200410040426 CN 200410040426 A CN200410040426 A CN 200410040426A CN 1598170 A CN1598170 A CN 1598170A
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- hot pressing
- manhole cover
- well lid
- supporting base
- skeleton
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention discloses a macromolecule composite material die pressing manhole cover. It manufactures as follows: at least one layer rigidity net barrier framework is clamped between the mixture which is mixed by macromolecule unsaturation resin (25%-35%), short-cut glass fiber (20%-30%), hard rubber (10%-20%), and curing agent bulking agent, stirring, the mould is demould to form after hot pressing heat preservation by hot pressing moulding machine, the manhole cover or water-grate formed by hot pressing is structure tightness, robustness, bear-insolate, hardiness, good toughness, anastomose tightness, high quality of fit, installation convenience, easy to turn on, and long useful life.
Description
Technical field
The present invention relates to a kind ofly be used to check that underground pipeline implements to be covered in manhole cover, the water grate on ground.
The invention still further relates to the manufacture method of this manhole cover.
Background technology
The underground pipeline well lid that is widely used in municipal administration enforcement in the known technology is continued to use the thick black heavy cast iron manufacturing of tradition always, this fragility is big, not shock-resistant, the casting iron well lid of easy-to-rust is very serious because of having the stolen phenomenon of regeneration recovery value, becomes the road surface trap of harm vehicle and pedestrains safety.For addressing this problem, seek the well lid utilization that nonmetal no regeneration is worth and gives birth to, thereby overall plastic well lid occurred, steel fibre well lid, supra polymer plastics well lid, the waste or used plastics combined manhole cover, plastic alloy well lid, glass fiber reinforced plastic MULTILAYER COMPOSITE well lid, the steel fibrous concrete well lid,, tempered glass steel well lid, the well lid that different materials such as polypropylene fiber concrete well lid are formed.Replace traditional casting iron well lid though these well lids have such-and-such advantage, also have this or that different defectives and deficiency.They be not too heaviness be exactly too light or intensity and toughness not enough, be not life-span weak point be exactly easy wear out or cost high, otherwise be complex forming technology.Such as No. 02149379.0 disclosed " resin base composite material manhole cover " patent of invention of Chinese patent, the main well lid of forming by the glass fiber about the resin more than 50% and 40%, formed well lid does not break away from the category of glass fiber reinforced plastic, its moulding process is more complicated also, and to twine glass fiber at the reinforcing rib position, lay the interlaced glass fiber woven roving of 45 degree at dull and stereotyped position.It pressurizes at normal temperatures, and tight ness rating is not high yet.No. 02129523.9 disclosed " a kind of combined manhole cover and preparation method thereof " patent of invention of Chinese patent, it is the composition of glass fabric and resin that well lid periphery and levels are provided, the intermediate layer is full of the cellular-core of filler.It is complicated to lay layer, and operation is many, and the sandstone and the resin of filling in the honeycomb have increased lid weight, and poor toughness, easily produces fracture.
Summary of the invention
The present invention is further improvement and the development to the nonmetal well lid of prior art.
It is durable, corrosion-resistant to the purpose of this invention is to provide a kind of close and firm, and long service life is from heavy and light, supporting capacity is big, and the material basically identical does not have the value of recycling, manufacturing process is simple, and the yield rate height can be made the polymer composite mold pressing manhole cover of net grid skeleton without screw-thread steel.
Another object of the present invention provides the generation method of making this moulded well covers.
In order to reach the foregoing invention purpose, a kind of polymer composite mold pressing manhole cover provided by the invention, comprise lid, it is characterized in that described well lid, macromolecule unsaturated-resin by 25%～35,20%～30 short glass fiber, 10～20% hard rubber, all the other are the mixture that curing compound and filler are formed, after the stirring, be clipped between the mixture with one deck rigid mesh grid skeleton at least, form by the hot pressing die machine mould heat pressure insulation back demoulding.
The well lid rigid mesh grid skeleton that is used for of the present invention can be by plastic-steel unit's bar or the staggered reinforcing rib grid of forming that overlaps of screw-thread steel unit bar.The protrusion module that is shaped on the described hot pressing die machine counterdie is passed the groove that alleviates that described reinforcement net grid skeleton grid forms the downside hot pressing of its well lid proper alignment roughly.
Manhole cover of the present invention also comprises the walling crib supporting base of the mold pressing manhole cover that coincide.
The rigid mesh grid skeleton that is used for the walling crib supporting base of the present invention can be that plastic-steel unit's bar or steel unit bar isoplanar are coiled into the supporting base skeleton that annulus connects to form.
Supporting base rigid mesh grid skeleton of the present invention is clipped under mixture and the hot pressing die machine between the die cavity, forms the walling crib supporting base of well head shape and identical well lid through patrix hot pressing insulation.
The method of this moulded well covers of manufacturing provided by the invention comprises the steps:
(1). get the raw materials ready:
1). make the rigid mesh grid skeleton of supporting base and well lid,
2). at normal temperatures, with 25%～35 macromolecule unsaturated-resin, 20%～30 short glass fiber, 10～20% hard rubber, all the other mixtures that are curing compound, accelerator and French chalk are formed stir with mixer;
(2). above-mentioned stirring thing is filled in the mold cavity of hot pressing die machine, puts into the rigid mesh grid skeleton that coincide with mold cavity, continue to fill up mixture and stir thing;
(3). by hot pressing die machine patrix counterdie is pressurizeed, and the demoulding is taken out after surplus being incubated ten minute.
The present invention has following useful good effect than prior art.
The present invention adopts the polymer composite mixture, through the well lid or the water grate of the necessarily hot pressing die machine hot pressing formation of tonnage, tightr, sturdy and durable than the prior art structure of normal temperature cure, anti-insolation, cold-resistant freezing, good toughness, it is tight to coincide, the quality of fit height, easy for installation, easily open long service life.Evidence the present invention is tilting not steadily, and roll and do not bounce, noiseless, pollution-free, no be full of cracks, expansion, surperficial blushing.Steady quality is reliable, can be non-maintaining.Have good impact strength and wear-corrosion resistance.Show that through Sichuan Province's product quality supervision and testing institute survey report every indexs such as anti-back of the present invention property have all surpassed cast iron, cement well lid.It is light to conduct oneself with dignity, lighter by 56% than the casting iron well lid of 156 kilogram weights, load test 〉=240KN, compressive strength 〉=30Mpa, rupture strength 〉=14Mpa, artificial ageing rupture strength relative change rate≤3% has reached the CJ/T3012-93 of Ministry of Construction's " castiron well cover " standard.Supporting capacity has surpassed casting iron well lid, and it is low to recycle value, has fundamentally solved the harm that the theft well lid brings for pedestrian and vehicle.Manufacturing process is simple, and technological process is short, and cost is few.The material uniformity, not stratified combination, the yield rate height can be without screw-thread steel.
Further specify the present invention below in conjunction with drawings and Examples, but therefore do not limit the present invention among the described scope of embodiments.
Description of drawings
Fig. 1 is a profile construction front view of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Embodiment
Fig. 1, Fig. 2 have described by macromolecule unsaturated-resin, short glass fiber, macromolecule hard rubber, after adding curing compound, filler and filler mixture stirring, be clipped between the mixture layer manhole cover of after the hot pressing die machine mould heat pressure insulation demoulding, making with one deck rigid mesh grid skeleton.Described hard rubber can be a polystyrene.Can add thinner in whipping process, described thinner can be a styrene.Described short glass fiber can be the glass fiber bar that is cut into five centimetres of left and right sides length.Described curing compound can be uncle's fourth fat or NaOH, described filler or filler can be the French chalk that adds, dicalcium powder and/light calcium carbonate powder or calcium oxide, also can be that other do not influence intensity, amalgamation is material preferably, and adding this type of filler or filler can reduce cost.Also can consider some accelerator in case of necessity such as different cobalt green styrene and so on.Be consideration attractive in appearance, can add a certain amount of colorant, also can add a certain amount of age resister.For alleviating the weight of lid, according to mechanics principle can on hot pressing die machine counterdie plane, make crisscross rectangle and/circle or circular arc protrusion module, and in forming crisscross groove thus, put into described rigid mesh grid skeleton 3, so that what make under at least 200 tons of hot pressing functions that well lid 1 forms proper alignment roughly alleviates recess hole 2, this recess hole 2 is a lightening core, be again reinforced hole, the shape size in hole, even have or not and can change or change.For convenience easy for installation and that inspection is opened, be shaped on open hole 4 on the well lid 1.Wherein said rigid mesh grid skeleton 3 can be by plastic-steel unit's bar or the staggered reinforcing rib grid of forming that overlaps of screw-thread steel unit bar, the first bar of described plastic-steel can be a screw thread unit bar, the first bar of described plastic-steel also can be a carbon fiber screw thread unit bar, can be with high temperature resistant, high-intensity nonmetals are equal to replacement.Diameter can be Φ 10～Φ 20 usually.The walling crib supporting base contour structures of in like manner making is basic identical with prior art, and difference is can be shaped on its excircle cylinder strengthening rib strip of parallel bus.
The manufacture method of making manhole cover of the present invention is:
(1). get the raw materials ready:
1). make the rigid mesh grid skeleton of supporting base and well lid,
A. plastic-steel unit's bar or the screw-thread steel unit staggered overlap joint of bar are formed the reinforcing rib grid;
B. plastic-steel unit's bar or steel unit bar are coiled into the supporting base skeleton that isoplanar annulus weldering connects to form.Described supporting base skeleton is clipped under mixture and the hot pressing die machine between the die cavity, forms the walling crib supporting base of well head shape and identical well lid through patrix hot pressing insulation.
2). at normal temperatures, 25%～35 the unsaturated-resin that will add respectively with mixer, 20%～30 short glass fiber, 10～20% polystyrene and/the styrene hard rubber, a certain amount of curing compound and thinner, dicalcium powder and/mixture that French chalk or light calcium carbonate powder filler are formed stirs in mixer, simultaneously colorant can be added, also aging-proof agent can be entered;
3). above-mentioned stirring thing is filled in the mold cavity of hot pressing die machine, inserts shop fixtures earlier and stir thing, put into the rigid mesh grid skeleton that a that coincide with mold cavity or b describe then, continue to fill up mixture again and stir thing; Can smear the routine techniques release agent to mold cavity before this.
4). the hot pressing die machine patrix that starts about 300 tons pressurizes to counterdie, takes out with 120～180 temperature insulation back demoulding in about ten minutes.
Another embodiment of the present invention is: repeat above-mentioned steps, according to step 2), respectively with 15%～30 unsaturated-resin, 10%～20 short glass fiber, 8～15% polystyrene and/the styrene hard rubber, a certain amount of curing compound, dicalcium powder and/French chalk or light calcium carbonate powder filler enter mixer mixing stirring.
For change of the present invention and improvement will be possible, and can not exceed design and the scope that accessory claim limits.Well lid of the present invention is round manhole cover not necessarily, and it can be any geometry.
The present invention is applicable to the overburden of municipal underground pipeline enforcement manhole cover, water grate and other scope of application.
Claims (8)
1. polymer composite mold pressing manhole cover, comprise lid, it is characterized in that described well lid, macromolecule unsaturated-resin by 25%～35,20%～30 short glass fiber, 10～20% hard rubber, all the other are the mixture that curing compound and filler are formed, after the stirring, be clipped between the mixture, form by the hot pressing die machine mould heat pressure insulation back demoulding with one deck rigid mesh grid skeleton at least.
2. manhole cover according to claim 1 is characterized in that the described reinforcing rib grid that well lid rigid mesh grid skeleton is made up of plastic-steel unit's bar or the screw-thread steel unit staggered overlap joint of bar that is used for.
3. manhole cover according to claim 1 is characterized in that being shaped on the described hot pressing die machine counterdie and can pass described reinforcement net grid skeleton grid, and its well lid downside hot pressing is formed the roughly protrusion module that alleviates groove of proper alignment.
4. manhole cover according to claim 1 is characterized in that: the walling crib supporting base that also comprises the mold pressing manhole cover that coincide.
5. manhole cover according to claim 4 is characterized in that the described rigid mesh grid skeleton that is used for the walling crib supporting base can be that plastic-steel unit's bar or steel unit bar isoplanar are coiled into the supporting base skeleton that annulus connects to form.
6. manhole cover according to claim 5 is characterized in that described supporting base skeleton is clipped under mixture and the hot pressing die machine between the die cavity, forms the walling crib supporting base of well head shape and identical well lid through patrix hot pressing insulation.
7. a manufacture method of making the described manhole cover of claim 1 is characterized in that described method comprises the steps:
(1). get the raw materials ready:
1). make the rigid mesh grid skeleton of supporting base and well lid,
2). at normal temperatures, with 25%～35 macromolecule unsaturated-resin, 20%～30 short glass fiber, 10～20% hard rubber, all the other mixtures that are curing compound, thinner and French chalk are formed stir with mixer;
(2). above-mentioned stirring thing is filled in the mold cavity of hot pressing die machine, puts into the rigid mesh grid skeleton that coincide with mold cavity, continue to fill up mixture and stir thing;
(3). by hot pressing die machine patrix counterdie is pressurizeed, and the demoulding is taken out after surplus being incubated ten minute.
8. manufacture method according to claim 7, it is characterized in that at normal temperatures, respectively with 15%～30 unsaturated-resin, 10%～20 short glass fiber, 8～15% polystyrene and/the styrene hard rubber, a certain amount of curing compound, dicalcium powder and/French chalk or light calcium carbonate powder filler enter mixer mixing stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040426 CN1256486C (en) | 2004-08-11 | 2004-08-11 | Cover made by macromolecular composite material and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040426 CN1256486C (en) | 2004-08-11 | 2004-08-11 | Cover made by macromolecular composite material and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598170A true CN1598170A (en) | 2005-03-23 |
| CN1256486C CN1256486C (en) | 2006-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040426 Expired - Fee Related CN1256486C (en) | 2004-08-11 | 2004-08-11 | Cover made by macromolecular composite material and its mfg. method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383190C (en) * | 2006-05-19 | 2008-04-23 | 天津市博安塑胶制品有限公司 | Resin base polymer composite manhole cover |
| CN102071704A (en) * | 2010-12-16 | 2011-05-25 | 吕云南 | Well lid |
| CN102189689A (en) * | 2011-04-02 | 2011-09-21 | 上海交通大学 | Preparation method for municipal manhole cover through fragmenting and sorting waste circuit boards |
| CN103286959A (en) * | 2012-03-05 | 2013-09-11 | 辽宁辽杰科技有限公司 | Manhole cover and manufacturing method thereof |
| CN103452142A (en) * | 2013-09-22 | 2013-12-18 | 宁夏盾牌建材有限公司 | Metal-free high-polymer inspection well lid and base combination of inspection well |
| CN104250979B (en) * | 2013-06-27 | 2016-05-04 | 蓝星（北京）特种纤维技术研发中心有限公司 | Composite shock-absorbing well cover and manufacture method thereof |
| CN106563921A (en) * | 2016-10-31 | 2017-04-19 | 四川邑诚科技有限公司 | Method for manufacturing anti-corrosion titanium material well ring |
| CN108914977A (en) * | 2018-07-31 | 2018-11-30 | 陈瑞钦 | A kind of collapse well lid |
| CN110014542A (en) * | 2019-04-17 | 2019-07-16 | 安徽省飞龙新型材料有限公司 | Compound resin is molded sewage-collecting well well seat production technology |
| CN110541435A (en) * | 2019-09-09 | 2019-12-06 | 陈志良 | Insulating material inspection well cover and manufacturing method thereof |
| CN112479631A (en) * | 2020-12-02 | 2021-03-12 | 金华市华发新型建材有限公司 | Composite resin well lid capable of forming patterns by heating |
| CN113605450A (en) * | 2021-08-08 | 2021-11-05 | 明光智源复合材料有限公司 | High-molecular composite material manhole cover and manufacturing method thereof |
| CN114559684A (en) * | 2022-03-07 | 2022-05-31 | 江苏瑞源塑业有限公司 | Light plastic well lid processing and forming device and forming method |
| CN117901323A (en) * | 2024-03-19 | 2024-04-19 | 山东宝盖新材料科技股份有限公司 | Automatic equipment for producing cover plate |
-
2004
- 2004-08-11 CN CN 200410040426 patent/CN1256486C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383190C (en) * | 2006-05-19 | 2008-04-23 | 天津市博安塑胶制品有限公司 | Resin base polymer composite manhole cover |
| CN102071704A (en) * | 2010-12-16 | 2011-05-25 | 吕云南 | Well lid |
| CN102189689A (en) * | 2011-04-02 | 2011-09-21 | 上海交通大学 | Preparation method for municipal manhole cover through fragmenting and sorting waste circuit boards |
| CN102189689B (en) * | 2011-04-02 | 2014-07-02 | 上海交通大学 | Preparation method for municipal manhole cover through fragmenting and sorting waste circuit boards |
| CN103286959A (en) * | 2012-03-05 | 2013-09-11 | 辽宁辽杰科技有限公司 | Manhole cover and manufacturing method thereof |
| CN104250979B (en) * | 2013-06-27 | 2016-05-04 | 蓝星（北京）特种纤维技术研发中心有限公司 | Composite shock-absorbing well cover and manufacture method thereof |
| CN103452142A (en) * | 2013-09-22 | 2013-12-18 | 宁夏盾牌建材有限公司 | Metal-free high-polymer inspection well lid and base combination of inspection well |
| CN103452142B (en) * | 2013-09-22 | 2015-11-04 | 宁夏盾牌建材有限公司 | Without metal-polymer inspection shaft manhole cover and inspection shaft well seat thereof |
| CN106563921A (en) * | 2016-10-31 | 2017-04-19 | 四川邑诚科技有限公司 | Method for manufacturing anti-corrosion titanium material well ring |
| CN108914977A (en) * | 2018-07-31 | 2018-11-30 | 陈瑞钦 | A kind of collapse well lid |
| CN110014542A (en) * | 2019-04-17 | 2019-07-16 | 安徽省飞龙新型材料有限公司 | Compound resin is molded sewage-collecting well well seat production technology |
| CN110541435A (en) * | 2019-09-09 | 2019-12-06 | 陈志良 | Insulating material inspection well cover and manufacturing method thereof |
| CN112479631A (en) * | 2020-12-02 | 2021-03-12 | 金华市华发新型建材有限公司 | Composite resin well lid capable of forming patterns by heating |
| CN113605450A (en) * | 2021-08-08 | 2021-11-05 | 明光智源复合材料有限公司 | High-molecular composite material manhole cover and manufacturing method thereof |
| CN114559684A (en) * | 2022-03-07 | 2022-05-31 | 江苏瑞源塑业有限公司 | Light plastic well lid processing and forming device and forming method |
| CN114559684B (en) * | 2022-03-07 | 2023-01-31 | 江苏瑞源塑业有限公司 | Light plastic cement well lid processing and forming device and forming method |
| CN117901323A (en) * | 2024-03-19 | 2024-04-19 | 山东宝盖新材料科技股份有限公司 | Automatic equipment for producing cover plate |
| CN117901323B (en) * | 2024-03-19 | 2024-05-14 | 山东宝盖新材料科技股份有限公司 | Automatic equipment for producing cover plate |
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| Publication number | Publication date |
|---|---|
| CN1256486C (en) | 2006-05-17 |
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