CN105881801A - Production technology of well lid - Google Patents
Production technology of well lid Download PDFInfo
- Publication number
- CN105881801A CN105881801A CN201610298203.2A CN201610298203A CN105881801A CN 105881801 A CN105881801 A CN 105881801A CN 201610298203 A CN201610298203 A CN 201610298203A CN 105881801 A CN105881801 A CN 105881801A
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- leftover pieces
- production technology
- well lid
- mould
- temperature
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a production technology of a well lid. According to the technical scheme, the production technology is characterized by comprising the steps that firstly, leftover materials are selected, and one or several kinds of glass fibers, carbon fibers and epoxy resin materials serve as the leftover materials; secondly, plastic films on the surfaces of the leftover materials are removed; thirdly, the weight of the required leftover materials is subjected to weighing and matching according to the weight of a completed product; fourthly, the leftover materials are put into a preheating oven to be heated and softened, the heating temperature ranges from 60 DEG C to 90 DEG C, and the heating time ranges from 15 min to 25 min; fifthly, the softened leftover materials are plugged into a mold and then compacted through a hydraulic machine; sixthly, the mold obtained after compaction is put into a forming oven, the temperature of the forming oven ranges from 180 DEG C to 220 DEG C, and the heating time ranges from 20 min to 30 min; seventhly, demolding is carried out; eighthly, after demolding, natural cooling is carried out till the temperature ranges from 90 DEG C to 110 DEG C, and coarse polishing is carried out while heat exists; and ninthly, natural cooling is carried out till the normal temperature is achieved, and fine polishing is carried out. The effects that the cost is low, environment friendliness is achieved, and polishing is efficient are achieved.
Description
Technical field
The present invention relates to a kind of road equipment production method, particularly to a kind of well lid production technology.
Background technology
Constantly build along with urban road and develop, being matched in all kinds of facility well lids of road, sluicing well lid increases severely day by day.Traditional manhole has casting iron well lid, concrete well cover, plastics well lid, resin compounded well lid etc., wherein casting iron well lid is easily stolen, concrete well cover easily peels off broken, plastics well lid is yielding aging, the easy embrittlement of resin compounded well lid does not carries, its root is that the fibre that well lid uses draws thing to be glass fibre, because glass fibre quality is crisp, easily disconnects under greater impact power effect.
Thus solve resin combined manhole cover the problem that do not carries it is crucial that replace glass fibre with the fiber that pull resistance is stronger.On the other hand, produce substantial amounts of leftover pieces during the Chinese clothing of 1,300,000,000 populations, according to the tensile strength of generation after the measuring fiber in test leftover pieces and resin cast considerably more than the intensity of glass fibre Yu resin alloy.
In prior art, the method producing well lid refers to the Chinese patent of Application No. 201210412234.8, and great majority use raw materials to mix, and then slurry is poured mould into and produced；Or application reference number is the Chinese patent of 201510096410.5, some leftover pieces is melted form slurry and adds adjuvant formation compound, then pour compound into mould and produce.
And selected leftover pieces are different, the well lid quality the most difference produced.In current material, the pad pasting etc. on the pad pasting of some on empennage or circuit board after aircraft, commonly used glass dimension, carbon fiber or epoxide resin material.And during materials'use, a lot of leftover pieces can be produced, and these leftover pieces arbitrarily abandon and more waste, and also result in certain pollution.Meanwhile, after product stripping after forming, needing to polish it, the needs of polishing are more careful, polish slower.
Summary of the invention
It is an object of the invention to provide that a kind of cost is relatively low, the more more efficient well lid production technology of environmental protection and polishing.
The above-mentioned technical purpose of the present invention has the technical scheme that a kind of well lid production technology,
Step one: select leftover pieces, the material of leftover pieces is one or more in glass dimension, carbon fiber and epoxide resin material；
Step 2: remove the plastic sheeting on leftover pieces surface；
Step 3: according to the weight of leftover pieces needed for the weight of product after completing itself, weighing proportioning；
Step 4: leftover pieces are put into preheating baking box in thermoplastic, heating-up temperature between to 60 DEG C to 90 DEG C, heat time heating time 15min to 25min；
Step 5: the leftover pieces after softening are filled in mould, are compacted by hydraulic press afterwards；
Step 6: will compacting after mould put into shaping baking box in, shape oven temperature between 180 DEG C to 220 DEG C, heat time heating time 20min to 30min；
Step 7: the demoulding；
Step 8: naturally cool to after demoulding, between 90 DEG C to 110 DEG C, the most slightly polish；
Step 9: naturally cool to room temperature after thick polishing, carries out essence polishing, puts in storage afterwards.
By above technical scheme: materials'use is leftover pieces, more environmental protection, and only need to be put into mould by the raw material of solid-state, facilitate proportioning, convenient operation, overall production cost is relatively low；And raw material is through high temperature mill pressure one-shot forming, makes material be integrated, the product bearing capacity produced is bigger；Ensure that the epoxy resin abundant infiltration in carbon fiber, glass dimension, enhance bonding force greatly, the product made is under Cyclic Load, it is not easy to produces internal injury, layering, thus ensure that the service life of this product；Simultaneously, product hardness is three times of cast iron, weight is 1/3rd of cast iron, is 1/5th of concrete resin composite materials, and well lid model is different, vary in weight, the lightest tens kilograms, 30 kilograms of the heaviest effects, single workman can easily install, assist without crane gear, reduce installation cost；Product non-corrosive, nontoxic, having is significantly the multiple functions such as strong acid-base, corrosion resistance, aging resistance；Product does not support burning, and anti-flammability is splendid.During polishing, slightly polishing time the most while hot, now product is softer, conveniently repaiies bigger burr, and essence is polished at this moment, and imprudence can be easily damaged product；After being cooled to room temperature for this, carrying out essence polishing, less burr is being repaiied.
It is also preferred that the left leftover pieces can be placed after removing plastic sheeting in step 2, hiding with thin film during placement, standing time is less than 30min.
Pass through technique scheme, in real work, the leftover pieces being removed plastic sheeting are susceptible to phenomenons such as aoxidizing, aging, and there is certain viscosity on surface, becomes easily infected by dust, by the covering of thin film, play dust-proof effect to a certain extent, reduce standing time, it is ensured that material will not excessively aoxidize or aging, it is ensured that the quality of product simultaneously.
It is also preferred that the left the material of leftover pieces is carbon fiber, the heating-up temperature preheating baking box in step 4 is 80 DEG C.
By technique scheme, carbon fiber sufficiently can be softened.
It is also preferred that the left the material of leftover pieces is glass dimension, the heating-up temperature preheating baking box in step 4 is 70 DEG C.
By technique scheme, glass dimension sufficiently can be softened, also it will not reach the degree of fusing.
It is also preferred that the left the heat time heating time preheating baking box in step 4 is 20min.
Pass through technique scheme, it is ensured that raw material softens fully, also will not delay the longer time, it is ensured that work efficiency.
It is also preferred that the left in step 5, by leftover pieces being radially arranged along mould of 2 to 4 bar shapeds, and when original state, being positioned at the bottom of mould in the middle part of the leftover pieces of bar shaped, two ends are positioned at outside mould, all put into the two ends of bar shaped leftover pieces after in mould at all leftover pieces and place in mould.
Pass through technique scheme, when filler process in which materials is the most fluffy, can be tied, when filler defective tightness by the leftover pieces of radially strip, easily material can be pulled out mould by holding the two ends of the radially leftover pieces of strip, conveniently carry out filler again.
It is also preferred that the left hydraulic press pressurizes 3 to 4 times.
By technique scheme, during compacting is raw-material, there is certain air between material, repeatedly pressurize, air within the off time of pressurization can be made conveniently to discharge, it is ensured that combine the tightst between material.
It is also preferred that the left shaping oven temperature in step 6 is 200 DEG C.
Pass through technique scheme, product its without any metallic additions, thus serve insulation effect truly, can complicated and changeable, severe, require that high place uses, grind pressure through 200 DEG C of high temperature to form, normally can use under-50 DEG C to 150 DEG C adverse circumstances, material therefor does not support burning, and anti-flammability is splendid.
It is also preferred that the left the heat time heating time shaping baking box in step 6 is 20min.
By above technical scheme so that material is the most melted, combine the tightst between material, it is ensured that product quality.
It is also preferred that the left the mass ratio of glass dimension, carbon fiber and epoxide resin material is 2:1:1.
By above technical scheme, it is ensured that after material at high temperature mill is molded, product has preferable bearing capacity and physical life.
In sum, the method have the advantages that service life is longer so that product has higher bearing capacity, light easy installation, corrosion-resistant, polishing is convenient and is not easy to damage product, and cost is relatively low.
Detailed description of the invention
A kind of well lid production technology, step one: leftover pieces purchase returned are classified, glass dimension, carbon fiber and epoxide resin material are separated from each other, separately during material, what material volume was similar is placed on a pile, can be less leftover pieces a pile, bigger a pile, if oversize or the biggest leftover pieces can carry out cutting.(illustrating at this: less and bigger leftover pieces are comparatively speaking, and the area of less leftover pieces can be less than 0.06, and the area of bigger leftover pieces may be greater than 0.06, when sub-material without the most accurate)
Step 2: can manually the plastic sheeting on leftover pieces surface be removed, the plastic sheeting on leftover pieces plays certain buffer action, places leftover pieces and occurs when transport is deposited to aoxidize or aging, this be on leftover pieces per se with；Need in use by plastics remove, except under plastic sheeting can be used to make plastic grain.And when removing, the most first remove the plastic sheeting on bigger leftover pieces, then it is stacked upon.
During stacking, with thin film, material in heaps can be hidden, so be possible to prevent dust, and standing time is less than 30min, can remove thin film, while carrying out next step operation.
Step 3: owing to the model of each product is different, the required material quantity of its product itself also has difference, according to the weight of product after completing itself, the weighing instrument of use electronic scale, to required for material carry out counterweight.Can be that a product uses a kind of material, it is also possible to be to use material in 2 to 3.The material quantity representing a product is individually put a pile after completing by counterweight.During counterweight, the mass ratio of glass dimension, carbon fiber and epoxide resin material can be 2:1:1.
During counterweight, if weight within an ace of, can be added less leftover pieces, torn off by the plastic sheeting on less leftover pieces during interpolation.
Step 4: after counterweight completes, leftover pieces are put into thermoplastic in preheating baking box, the heating-up temperature of baking box is between to 60 DEG C to 90 DEG C, when the material of leftover pieces is carbon fiber, the heating-up temperature of preheating baking box can be 80 DEG C, when the material of leftover pieces is glass dimension, the heating-up temperature of preheating baking box can be 70 DEG C；Preheating oven heat time 15min to 25min, can be 15min, 25min, preferably 20min.
Step 5: can fill in mould by the leftover pieces after manually softening, during putting into leftover pieces, can be by manually carrying out preliminary compacting；Then put in hydraulic press by loading complete mould, by hydraulic press, leftover pieces are compacted.Hydraulic press, during pressurization, can pressurize 3 times or 4 times.
Before inserting leftover pieces, first smearing release agent on mould, releasing agent is epoxy resin release agent.
When filling out leftover pieces, by leftover pieces being radially arranged along mould of 2 to 4 bar shapeds, namely the bottom of mould now can put two or four leftover pieces being disposed radially, and two ends are positioned at outside mould, all put into the two ends of bar shaped leftover pieces after in mould at all leftover pieces and place in mould.Certainly, during putting leftover pieces, it is also possible to place the leftover pieces being radially arranged again；So when filler process in which materials is the most fluffy, can be tied by the leftover pieces of radially strip, when filler defective tightness, easily material can be pulled out mould by holding the two ends of the radially leftover pieces of strip, conveniently carry out filler again.
Step 6: the mould after being compacted by leftover pieces is put in shaping baking box, and shaping oven temperature, between 180 DEG C to 220 DEG C, can be 200 DEG C；Heat time heating time, 20min to 30min, can be 20min.
Step 7: the mould after formed product is taken out from shaping baking box, carries out the demoulding.
The defective material in a lower mold can be understood after the demoulding, it is possible to smearing release agent, carry out the production of next product.
Step 8: can be placed on after demoulding on ground and carry out natural cooling, cools down 10min to 15min so that the temperature of product is between to 90 DEG C to 110 DEG C, when can be 100 DEG C, carry out rough polishing the most while hot, mainly say that bigger burr removes, facilitate the essence polishing in later stage；
Step 9: naturally cool to room temperature after thick polishing, carries out essence polishing, it is ensured that product smooth, polish more efficient and convenient, warehouse-in after polishing.
Product after molding has a following effect:
One, bearing capacity is big: raw material, through high temperature mill pressure one-shot forming, makes material be integrated, and the product bearing capacity produced is bigger.
Two, service life is long: being worked in coordination with by carbon fibre/glass increases the product that epoxide resin material is made, ensure that the resin abundant infiltration in carbon fibre, glass, greatly enhance both bonding forces, make material under Cyclic Load, do not produce internal injury, layering, thus ensure that service life, and meet, beyond other, the disadvantage that material well lid bonding force is poor, its service life was up to more than 50 years；
Three, light, easily installation: whole U-type groove body is without any framework of steel reinforcement, hardness is three times of cast iron, weight is 1/3rd of cast iron, is 1/5th of concrete resin composite materials, and well lid model is different, vary in weight, the lightest tens kilograms, 30 kilograms of the heaviest effects, single workman can easily install, assist without crane gear, reduce installation cost；
Four, high temperature resistant/low temperature, fire-retardant, good insulating: it is without any metallic additions, thus serve insulation effect truly, can complicated and changeable, severe, require that high place uses, grind pressure through 200 DEG C of high temperature to form, normally can use under-50 DEG C to 150 DEG C adverse circumstances, material therefor does not support burning, and anti-flammability is splendid；
Five, corrosion-resistant: its non-corrosive, nontoxic, having is significantly the multiple functions such as strong acid-base, corrosion resistance, aging resistance；
Six, attractive in appearance smooth, transport without worry: through high temperature mill pressure, one-time formed, either outward appearance or internal structure, it is all smooth, its lightweight, lid, seat fastening precision simultaneously, problems such as " jump, lift up, shift " that overcome other well lid, and the toughness of whole U-type groove body is the best, density is big, intensity is high, bearing capacity is big, do not have during transportation and packing frangible, easily split, deformation etc.；
Seven, environmental protection: material is checked through national product quality surveillance, all technical all meets and exceeds building material industry JC/T1009-2006 and construction industry CJ/T121-200 standard-required, and has exceeded international EU criteria EN1433 and EN124 standard-required.
According to standard, product is carried out load test, applying finder charge 600kN, and keeping 30 seconds, unloading, it is desirable to be the product destruction that should not occur affecting bearing capacity.
Concrete outcome refers to following table:
| Trial target 1 | Trial target 2 | Trial target 3 | Trial target 4 | Trial target 5 | |
| Shape oven temperature | 200 | 200 | 200 | 200 | 200 |
| Shape the baking box time | 20 | 20 | 20 | 20 | 20 |
| Material mixture ratio | Carbon is fine: glass | Carbon is fine: epoxy resin | Carbon is fine: glass: epoxy resin | Carbon is fine: glass: epoxy resin | Glass |
| Quality of materials ratio | 1:1 | 2:1 | 2:1:1 | 1:1:1 | |
| Assay | Qualified | Qualified | Qualified | Qualified | Qualified |
| Ultimate load | 717 | 725 | 778 | 756 | 703 |
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in scope of the presently claimed invention.
Claims (10)
1. a well lid production technology, it is characterised in that:
Step one: select leftover pieces, the material of leftover pieces is one or more in glass dimension, carbon fiber and epoxide resin material；
Step 2: remove the plastic sheeting on leftover pieces surface；
Step 3: according to the weight of leftover pieces needed for the weight of product after completing itself, weighing proportioning；
Step 4: leftover pieces are put into preheating baking box in thermoplastic, heating-up temperature between to 60 DEG C to 90 DEG C, heat time heating time 15min to 25min；
Step 5: the leftover pieces after softening are filled in mould, are compacted by hydraulic press afterwards；
Step 6: will compacting after mould put into shaping baking box in, shape oven temperature between 180 DEG C to 220 DEG C, heat time heating time 20min to 30min；
Step 7: the demoulding；
Step 8: naturally cool to after demoulding, between 90 DEG C to 110 DEG C, the most slightly polish；
Step 9: naturally cool to room temperature after thick polishing, carries out essence polishing, puts in storage afterwards.
Well lid production technology the most according to claim 1, it is characterised in that: in step 2, leftover pieces can be placed after removing plastic sheeting, hides with thin film during placement, and standing time is less than 30min.
Well lid production technology the most according to claim 1, it is characterised in that: the material of leftover pieces is carbon fiber, and the heating-up temperature preheating baking box in step 4 is 80 DEG C.
Well lid production technology the most according to claim 1, it is characterised in that: the material of leftover pieces is glass dimension, and the heating-up temperature preheating baking box in step 4 is 70 DEG C.
Well lid production technology the most according to claim 1, it is characterised in that: the heat time heating time preheating baking box in step 4 is 20min.
Well lid production technology the most according to claim 1, it is characterized in that: in step 5, by leftover pieces being radially arranged along mould of 2 to 4 bar shapeds, and when original state, the bottom of mould it is positioned in the middle part of the leftover pieces of bar shaped, two ends are positioned at outside mould, all put into the two ends of bar shaped leftover pieces after in mould at all leftover pieces and place in mould.
Well lid production technology the most according to claim 1, it is characterised in that: hydraulic press pressurizes 3 to 4 times.
Well lid production technology the most according to claim 1, it is characterised in that: shaping oven temperature in step 6 is 200 DEG C.
Well lid production technology the most according to claim 1, it is characterised in that: the heat time heating time shaping baking box in step 6 is 20min.
10. according to production technology described in claim 1 to 9 any one, it is characterised in that: the mass ratio of glass dimension, carbon fiber and epoxide resin material is 2:1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298203.2A CN105881801B (en) | 2016-05-06 | 2016-05-06 | A kind of well lid production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298203.2A CN105881801B (en) | 2016-05-06 | 2016-05-06 | A kind of well lid production technology |
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| Publication Number | Publication Date |
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| CN105881801A true CN105881801A (en) | 2016-08-24 |
| CN105881801B CN105881801B (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610298203.2A Expired - Fee Related CN105881801B (en) | 2016-05-06 | 2016-05-06 | A kind of well lid production technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943548A (en) * | 2018-09-07 | 2018-12-07 | 米库玻璃纤维增强塑料泰州有限责任公司 | A kind of carbon fibre composite manufacturing process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393604A (en) * | 2001-06-21 | 2003-01-29 | 王进喜 | Permanent manhole cover made of garbage |
| CN1559779A (en) * | 2004-03-10 | 2005-01-05 | 陈光威 | Nonmetal manhole cover and its manufacturing method |
| 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 |
| CN102493489A (en) * | 2011-11-15 | 2012-06-13 | 刘士祥 | High-toughness fabric fiber resin road manhole cover |
-
2016
- 2016-05-06 CN CN201610298203.2A patent/CN105881801B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393604A (en) * | 2001-06-21 | 2003-01-29 | 王进喜 | Permanent manhole cover made of garbage |
| CN1559779A (en) * | 2004-03-10 | 2005-01-05 | 陈光威 | Nonmetal manhole cover and its manufacturing method |
| 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 |
| CN102493489A (en) * | 2011-11-15 | 2012-06-13 | 刘士祥 | High-toughness fabric fiber resin road manhole cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943548A (en) * | 2018-09-07 | 2018-12-07 | 米库玻璃纤维增强塑料泰州有限责任公司 | A kind of carbon fibre composite manufacturing process |
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| CN105881801B (en) | 2018-05-25 |
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