CN102514200A - Hot extrusion and cold compression forming method of plastic inspection well - Google Patents

Hot extrusion and cold compression forming method of plastic inspection well Download PDF

Info

Publication number
CN102514200A
CN102514200A CN201110420209XA CN201110420209A CN102514200A CN 102514200 A CN102514200 A CN 102514200A CN 201110420209X A CN201110420209X A CN 201110420209XA CN 201110420209 A CN201110420209 A CN 201110420209A CN 102514200 A CN102514200 A CN 102514200A
Authority
CN
China
Prior art keywords
plastic
plastics
inspection well
mold
mould
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.)
Pending
Application number
CN201110420209XA
Other languages
Chinese (zh)
Inventor
吴张永
卞光明
李意昆
吴喜
代龙
温成卓
王庆辉
李委陵
高晓艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNMING XINRONGTONG PLASTIC CO Ltd
Kunming University of Science and Technology
Original Assignee
KUNMING XINRONGTONG PLASTIC CO Ltd
Kunming University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KUNMING XINRONGTONG PLASTIC CO Ltd, Kunming University of Science and Technology filed Critical KUNMING XINRONGTONG PLASTIC CO Ltd
Priority to CN201110420209XA priority Critical patent/CN102514200A/en
Publication of CN102514200A publication Critical patent/CN102514200A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B29C47/92

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a hot extrusion and cold compression forming method of a plastic inspection well and belongs to the field of municipal engineering. According to the forming method, firstly, a grinding tool is manufactured according to the required inspection well, then, plastics are heated to a fusion state, next, the plastics in the fusion state are quantificationally extruded into a mold according to the plastic quantity required by the workpiece forming so that the plastics are cooled and formed in a mold die cavity, then, the grinding tool is taken down, and finally, workpieces are assembled into the required inspection well. In the step of heating the plastics to the fusion state, the temperature of the plastics is raised to 110 DEG C to 300 DEG C, cooling water is introduced during the pressure maintaining and mold matching, the mold matching is carried out on the mold at the pressure being 300KN to 20000KN, and the pressure maintaining time is 2 minutes to 8 minutes. The forming method has the advantages that the yield matching problem of plastic extruding machine and press machine molding forming is solved, a plurality of plastic extruding machines can be combined for material supplying, a heat insulation material storage mold and a heat insulation molding pressing device are omitted, and in addition, the automatic control can be realized.

Description

A kind of plastic inspection well hot extruding and cold press method
Technical field
The present invention relates to OnePlant plastic inspection well hot extruding and cold press method, belong to the municipal works field.
Background technology
Inspection shaft is to be used for the rain sewage vent line; The vertical shaft of on the underground utilities position, building at a certain distance; Pipeline in order to connect different tube diameters, different directions, differing heights uses; The main nurse people of keeping makes regular check on dredging pipeline, removes the mud foreign matter, prevents line clogging etc., is one of urban road underground foundation facility.Inspection shaft mainly partly is made up of well seat, well body and well lid etc., and monoblock type plastic inspection well and combined plastic inspection shaft are arranged, and has had the moulding technique of report that injection mo(u)lding, Wrapping formed, rotation molding etc. are arranged; But exist equipment investment big on equipment, technology manufacturing and the structure, mould is complicated, is difficult to continuous automatic production; Product strength is not enough; Connectivity is poor, and seam difficulty, sealing such as can not guarantee at problem.
Injection mo(u)lding is to use injection molding machine of plastic and mould high-pressure injection molding; Like the patent No. is " composite electric inspection shaft " patent of 200920198427.1,200910153484.2, uses injection mo(u)lding to be the trading halt that stagnates, and there is slot the trading halt both sides that stagnate; On inserted sheet is arranged; Under caulking groove is arranged, slot is linked and packed into the inspection shaft framework with the Corner Link of injection mo(u)lding or the straight flange connector of injection mo(u)lding, in an inspection shaft framework, has at least in the stagnant trading halt and has only the conduit access port; Being stagnated by polylith, trading halt is compound to be assembled into whole inspection shaft framework, can adjust the size and the height of well.This forming method, injection-moulding device is huge, complex structure, it is huge that production starts investment, and operating cost is high; The mould project organization is complicated, and mould is various, costs an arm and a leg; Higher to specification requirement, go into operation slowly; Production efficiency is low, and product cost is high.Be difficult to moulding for heavy wall, large-scale plastic inspection well, the goods shrinkage factor is big, and the injection moulding waste material is arranged, and is prone to depression, defectives such as buckling deformation, change in size.
Wrapping formed production plastic inspection well is a raw material with polyethylene (HDPE); Adopt extruder to extrude the base pipe; Helically-wound shaped again; It like the patent No. " Wrapping formed inspection well prepared from plastic in environmental protection and manufacturing approach thereof " patent of invention of 200510021346.0; Process plastics or the plastic composite that 10 ~ 200 millimeters of diameters are band shape or wire with the plastic grain fusion, plastics or the plastic composite of using 10 ~ 200 millimeters of diameters to be band shape or wire are again made 360 ° of spirals around centerline axis and are twined molten sticking moulding, and there is spiral reinforcing rod at the plastics or the molten each other place of being connected of plastic composite that are band shape or wire; Each parts buckle-type constitutes inspection shaft, perhaps connects with plastic seal adapter sleeve or rubber ring.This forming method, technological process is long, complex process; Complex equipments, quantity is many, and investment is big, and production cost is high, and efficient is low; Operation requires high, has welding hidden danger, and can not produce tapering and eccentric type plastic checking-well.
Rotation molding is with mould heating, plastic raw materials is poured into again and is done 360 ° in the mould and rotatablely move, and along with the motion of mould, plastic raw materials constantly is attached to the mould inwall shape chamber of having heated, and makes it reach certain thickness.It like the patent No. " the monoblock type plastic inspection well of rotation molding " utility model patent of 200820223974.6.This forming method, the equipment mechanism complicated movement, the mold heated area is big, and heating needs with the gas-fired heating, and energy consumption is big, and the thermal efficiency is extremely low, heats inhomogeneously, and air pollution is big; Mold cools down is inconvenient, and water-cooled is big to the mould damage, yielding or corrosion, and the air-cooled time is long, efficient is low; Plastic raw materials needs through grinding, and energy consumption is big; The workman operates and requires height, and environmental condition is poor, and labour intensity is big; The goods packing is low, and be prone to bending, shrink, burn variable color, interior bubble, wall unevenness, defectives such as structural strength difference, molding cycle is long, is difficult to produce in batches.
It is with the plastic plate heating that hot blow is inhaled moulding, and one side compressed air blows, and another side vacuumizes suction; The forming shape that acquisition needs is " hot blow-suction molding device of plastic inspection well and method for using thereof " patent of invention of 201010197628.7 like the patent No., and the plastics firing rate is slow; Complicated operation; Production efficiency is low, and workpiece wall thickness is wayward, can not production large scale inspection shaft.
Hot extruding and cold press is to extrude molten plastic with plastic extruder; Be cast into plastic inspection well by press and mould again; It like the patent No. " method of hot extruding and cold press plastic inspection well " patent of invention of 200610022564.0; The production capacity matching problem of unresolved plastic extruder and press compression molding need be established the insulation storing mould of 160 degree ~ 220 degree and the insulation molding device of 100KN ~ 400KN; Die moves, and for guaranteeing the matched moulds of die and punch, higher running fix precision must be arranged; Dwell time is long, and packing pressure is low, influences the packing of production efficiency and workpiece compacting.
The plastic inspection well forming method that also has adopts structured wall popes such as winding pipe; Be processed into welding, mode bonding or mechanical connection, defectives such as insufficient strength, cracking seepage appear in connecting portion easily, and this kind plastic inspection well well seat is heavy; Waste of raw materials is big, expends man-hour.
Summary of the invention
The purpose of this invention is to provide a kind of OnePlant plastic inspection well hot extruding and cold press method, produce the problem that moulding technique exists to solve existing plastic inspection well.
Technical scheme of the present invention is:
OnePlant plastic inspection well hot extruding and cold press method; At first make grinding tool, again with the plastics heating and melting, again according to the required amount of plastic of Workpiece shaping according to required inspection shaft; Quantitatively be extruded into the plastics under the molten condition in the mould; Make plastics cooling forming in mold cavity, take off grinding tool then, at last workpiece is assembled into required inspection shaft.
Make the plastics temperature rise to 110 ℃ ~ 300 ℃ during said heating and melting, feed cooling water in the time of the pressurize matched moulds, with the mould matched moulds, the time of pressurize is 2min ~ 8min under the pressure of 300KN ~ 20000KN.Make plastics cooling forming in mold cavity, make the same time of cooling and moulding accomplish.
The method of the invention can be implemented with existing equipment, the steps include:
(1) is that the plastics that are not more than graininess or the sheet of 50mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.The heating of plastic extruder and holding temperature are regulated setting according to plastics kind and ratio requirement, generally make the plastics temperature rise to 110 ℃ ~ 300 ℃ and get final product.Molten plastic quantitative (weight or volume) is according to how many settings of the plastic inspection well workpiece needs plastics weight of extruding, generally at 1kg ~ 130kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under pressure, and for energy-conservation and boost productivity, press extruding force and dwell pressure are set according to plastic inspection well workpiece size and squish area size, and generally pressure is between 300KN ~ 20000KN.The press matched moulds dwell time, confirm according to the mold cools down operating mode, generally be set in 2min ~ 8min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, through conventional assembling such as welding, bolt connection connected mode, workpiece is assembled into needed plastic inspection well again.
Compression mod matched moulds of the present invention can adopt external mold (die) fixing, and internal mold (punch) activity also can adopt internal mold (punch) fixing, external mold (die) activity.Hydraulic pressure or pneumatic ejection device are adopted in external mold (die) demoulding, and internal mold (punch) demoulding is adopted the pressure-air demoulding for avoiding damaging workpiece, also plays vacuum and the mold cools down effect eliminated.
Device therefor device of the present invention is commercially available equipment and device.
The invention has the beneficial effects as follows:
(1) solved the production capacity matching problem of plastic extruder and press compression molding, available many plastic extruders combination feed has saved insulation storing mould and insulation molding device.
(2) startup of plastic extruder, plastics heating and insulation, molten plastic are quantitatively extruded and can be realized automation control.
(3) molten plastic is put into compression mod, press startup, the demoulding, workpiece and is released and can realize automation control.
(4) hot extruding and cold press technology is compared with roll moulding shaping technology, and is simple to operate, and energy consumption is low, cleaning, and pollution-free, die life is long, and operation is few, and production efficiency is high; Compare with injection molding process, low in energy consumption; Compare with winding shaping process, technology is simple, and is easy and simple to handle, and operation is few, and production efficiency is high.
(5) forming die structure is simple, and cooling is convenient, and cooling effect is good, and the mould manufacturing expense is low, small investment.
(6) be easy to the various inspection shaft sub-assemblies of moulding, form polytype inspection shaft, therefore reduced mould kind quantity, reduced mould and dropped into expense.
(7) be mostly common apparatus, equipment is simple, combined and instant, and area occupied is little, small investment, operation and maintenance cost is low.
(8) workpiece article construction wall is thin, can save raw material, and is in light weight; The structure packing is high, and intensity is good; Dimensional accuracy is high, and outward appearance is good, and percent defective is low.
(9) the workpiece goods are Integratively formed, and shape is accurately unified, and not yielding, dimensional interchangeability is good, and for the assembling welding sequence provides assurance, assembling speed is fast; Not only can moulding minor diameter inspection shaft also can the moulding major diameter close up, eccentric inspection shaft.
Description of drawings
Fig. 1 is the front view of technological process of the present invention;
Fig. 2 is the vertical view of technological process of the present invention;
Each label is among the figure: 1: extrusion moulding apparatus, 2: preformed device, 3: hopper, 4: preformed heating chamber, 5: extrusion molding incubation cavity, 6: head, 7: press, 8: mould, 9: push piece device, 10: Work transfer device, 11: raw material conveying device.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further, but content of the present invention is not limited to said scope.
Instance 1: OnePlant plastic inspection well hot extruding and cold press method; At first make grinding tool, again with the plastics heating and melting, again according to the required amount of plastic of Workpiece shaping according to required inspection shaft; Quantitatively be extruded into the plastics under the molten condition in the mould; Make plastics cooling forming in mold cavity, take off grinding tool then, at last workpiece is assembled into required inspection shaft.
Make the plastics temperature rise to 110 ℃ during said heating and melting, feed cooling water in the time of the pressurize matched moulds, with the mould matched moulds, the time of pressurize is 2min under the pressure of 300KN.Make plastics cooling forming in mold cavity, make the same time of cooling and moulding accomplish.
Instance 2: OnePlant plastic inspection well hot extruding and cold press method; At first make grinding tool, again with the plastics heating and melting, again according to the required amount of plastic of Workpiece shaping according to required inspection shaft; Quantitatively be extruded into the plastics under the molten condition in the mould; Make plastics cooling forming in mold cavity, take off grinding tool then, at last workpiece is assembled into required inspection shaft.
Make the plastics temperature rise to 300 ℃ during said heating and melting, feed cooling water in the time of the pressurize matched moulds, with the mould matched moulds, the time of pressurize is 8min under the pressure of 20000KN.Make plastics cooling forming in mold cavity, make the same time of cooling and moulding accomplish.
Instance 3: OnePlant plastic inspection well hot extruding and cold press method, the steps include:
(1) is that the granular plastics of 50mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.Make the plastics temperature rise to 110 ℃.Molten plastic quantitatively is 1kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under 300KN pressure, and the dwell time is 2min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, workpiece is welded again, and is assembled into needed plastic inspection well.
Instance 4: OnePlant plastic inspection well hot extruding and cold press method, the steps include:
(1) is that the plastics of the sheet of 31mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.Make the plastics temperature rise to 300 ℃.Molten plastic quantitatively is 130kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under 20000KN pressure, and the dwell time is 8min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, again workpiece is assembled into needed plastic inspection well with bolt.
Instance 5: OnePlant plastic inspection well hot extruding and cold press method, the steps include:
(1) is that the plastics of the sheet of 43mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.Make the plastics temperature rise to 205 ℃.Molten plastic quantitatively is 75kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under 10000KN pressure, and the dwell time is 5min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, workpiece is welded again, and is assembled into needed plastic inspection well.
Instance 6: OnePlant plastic inspection well hot extruding and cold press method, the steps include:
(1) is that the granular plastics of 18mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.Make the plastics temperature rise to 185 ℃.Molten plastic quantitatively is 50kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under 8000KN pressure, and the dwell time is 4min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, again workpiece is assembled into needed plastic inspection well with bolt.
Instance 7: OnePlant plastic inspection well hot extruding and cold press method, the steps include:
(1) is that the plastics of the sheet of 12mm add in the hopper 3 of plastic extruder with diameter, starts the preformed device 2 of plastic extruder, push plastics in the preformed heating chamber 4 of plastic extruder and carry out heating and melting.Make the plastics temperature rise to 240 ℃.Molten plastic quantitatively is 110kg.
(2) extrusion moulding apparatus 1 of startup plastic extruder; Molten plastic in the preformed heating chamber 4 is pushed in the extrusion molding incubation cavity 5; When molten plastic filled up extrusion molding incubation cavity 5, the extrusion moulding apparatus 1 of plastic extruder made the molten plastic in the extrusion molding incubation cavity 5 quantitatively extruded by plastic extruder head 6 through time control.
(3) molten plastic after extruding falls into raw material conveying device 11, delivers in mould 8 die cavities through raw material conveying device 11.
(4) start press 7, mould 8 is matched moulds under 16000KN pressure, and the dwell time is 6min.Feed cooling water simultaneously, plastics are cooling forming in mould 8 die cavities.
(5) press 7 is carried out the die sinking action, and through the ejecting mechanism of press 7 workpiece is pushed up to certain altitude, ejects lower mould.
(6) start push piece device 9, the workpiece after ejecting is pushed Work transfer device 10.
(7) start Work transfer device 10, through Work transfer device 10, workpiece is delivered to assigned address.
(8) last, the deburring check is carried out in manual work, workpiece is welded again, and is assembled into needed plastic inspection well.

Claims (1)

1. OnePlant plastic inspection well hot extruding and cold press method, at first make grinding tool, again with the plastics heating and melting according to required inspection shaft; According to the required amount of plastic of Workpiece shaping, the plastics under the molten condition quantitatively are extruded in the mould again, make plastics cooling forming in mold cavity; Take off grinding tool then; At last workpiece is assembled into required inspection shaft, it is characterized in that: make the plastics temperature rise to 110 ℃ ~ 300 ℃ during said heating and melting, feed cooling water in the time of the pressurize matched moulds; With the mould matched moulds, the time of pressurize is 2min ~ 8min under the pressure of 300KN ~ 20000KN.
CN201110420209XA 2011-12-15 2011-12-15 Hot extrusion and cold compression forming method of plastic inspection well Pending CN102514200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110420209XA CN102514200A (en) 2011-12-15 2011-12-15 Hot extrusion and cold compression forming method of plastic inspection well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110420209XA CN102514200A (en) 2011-12-15 2011-12-15 Hot extrusion and cold compression forming method of plastic inspection well

Publications (1)

Publication Number Publication Date
CN102514200A true CN102514200A (en) 2012-06-27

Family

ID=46285400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110420209XA Pending CN102514200A (en) 2011-12-15 2011-12-15 Hot extrusion and cold compression forming method of plastic inspection well

Country Status (1)

Country Link
CN (1) CN102514200A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103085304A (en) * 2013-01-23 2013-05-08 南宁燎旺车灯有限责任公司 High-speed plastic stamping host
CN104325614A (en) * 2014-09-11 2015-02-04 达州洪福科技开发有限公司 Method for producing plastic section through extrusion, hot cutting and static fixing, and apparatus system thereof
CN109333768A (en) * 2018-10-18 2019-02-15 苏州苏绝电工材料股份有限公司 A kind of manufacturing method of abnormity mica part

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1986201A (en) * 2006-12-21 2007-06-27 四川天鑫塑胶管业有限公司 Hot extruding and cold pressing process for forming plastic inspection well
WO2009119560A1 (en) * 2008-03-25 2009-10-01 新日本石油株式会社 Production method and production system of solidified sulfur
CN201330406Y (en) * 2008-12-31 2009-10-21 四川天鑫塑胶管业有限公司 Reinforced plastic inspection chamber bottom plate by hot extrusion cold press forming method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1986201A (en) * 2006-12-21 2007-06-27 四川天鑫塑胶管业有限公司 Hot extruding and cold pressing process for forming plastic inspection well
WO2009119560A1 (en) * 2008-03-25 2009-10-01 新日本石油株式会社 Production method and production system of solidified sulfur
CN201330406Y (en) * 2008-12-31 2009-10-21 四川天鑫塑胶管业有限公司 Reinforced plastic inspection chamber bottom plate by hot extrusion cold press forming method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103085304A (en) * 2013-01-23 2013-05-08 南宁燎旺车灯有限责任公司 High-speed plastic stamping host
CN104325614A (en) * 2014-09-11 2015-02-04 达州洪福科技开发有限公司 Method for producing plastic section through extrusion, hot cutting and static fixing, and apparatus system thereof
CN109333768A (en) * 2018-10-18 2019-02-15 苏州苏绝电工材料股份有限公司 A kind of manufacturing method of abnormity mica part

Similar Documents

Publication Publication Date Title
CN103112151B (en) Continuous cap making machine
CN101284414B (en) Composite long rod insulator injection molding machine
CN102514200A (en) Hot extrusion and cold compression forming method of plastic inspection well
CN100448644C (en) One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush
CN210937056U (en) Die casting die convenient to use
CN103722036B (en) A kind of nuclear power super pipeline ozzle draw device and method
CN201098979Y (en) Plastic inspection well main-well body die-casting forming die
CN214645534U (en) Mould for rubber products
CN201240034Y (en) Composite long rod insulator injection molding machine
CN201098978Y (en) Plastic inspection well launder body die-casting forming die
CN202826273U (en) Runnerless mould for plastic package of stator
CN210308914U (en) Energy-saving injection molding machine with heat recovery and reuse function
CN201077134Y (en) Building plastic formwork die
CN204955468U (en) Crowded cold press molding mould of building ash bucket heat
CN2738979Y (en) Pipeline mould of direct-combustion rotary moulding machine
CN113459235A (en) Building flitch system of processing
CN208392476U (en) A kind of horizontal more injection hole injection molding machines
CN2339608Y (en) Rotary-disc type automatic forming machine for disposable tableware
CN219727162U (en) Plastic product bottle blowing shaping mechanism
CN219360136U (en) Injection mold for rapid molding of interior trim parts
CN213472066U (en) Injection mold for automobile armrest plate
CN203381108U (en) Multi-mould cavity mould device for producing plastic section
CN214491509U (en) High viscosity material injection mold structure
CN214926653U (en) Novel double-color injection mold
CN216373129U (en) Durable type plastics door and window profile shapes design mould

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20120627