CN103640141B - Disposal vacuum heparin tube PET pipe Shooting Technique - Google Patents
Disposal vacuum heparin tube PET pipe Shooting Technique Download PDFInfo
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- CN103640141B CN103640141B CN201310724880.2A CN201310724880A CN103640141B CN 103640141 B CN103640141 B CN 103640141B CN 201310724880 A CN201310724880 A CN 201310724880A CN 103640141 B CN103640141 B CN 103640141B
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C2045/0096—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
- B29L2023/007—Medical tubes other than catheters
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to disposal vacuum heparin tube PET pipe Shooting Technique, the main component of PET pipe is: polyester slice (PET) 97-97.5%, additive 3-2.5%; Processing step: 1) materials: select Shanghai far to spin bottle-grade polyester chip; PETCB-651S or CB-602 as injection raw material, Choice and process auxiliary agent master batch AP-30-1137S(60) as additive; 2) raw material drying; 3) additive package; 4) plastify; 5) matched moulds; 6) injection filling mould: 7) pressurize 8) cooling and shaping; 9) die sinking, 10) packaging: plastic tube is packed; By above-mentioned steps, the product stain diameter < 1.00mm of acquisition, quantity is less than 2, meets company standard; Range estimation product transparency is obviously bright; Product surface viscosity meets company standard, does not affect the carrying out of subsequent handling.Reduce intrinsic viscosity, improve the mobility of PET, insignificant dimension overproof < 0.05mm; The breakage-proof experiment of bottleneck shows that product strength is high, meets company standard safety requirements; Product qualification rate reaching 99% ~ 99.5%.Compared with prior art, there is novelty and creativeness.
Description
Technical field
The present invention relates to plastic tube Shooting Technique, particularly disposal vacuum heparin tube PET pipe Shooting Technique, can be widely used in: the moulding manufacture field of bottle-grade polyester chip (PET).
Background technology
PET is the polymer of milky or light yellow highly crystalline, surface smoothing and glossy.Resistance to creep, fatigue resistance, rub resistance are good, wear away little and hardness is high, have toughness maximum in thermoplastic; Electrical insulation capability is good, and temperature influence is little, but corona resistance is poor.Nontoxic, against weather, chemical proof good stability, water absorption rate is low, weak acid resistant and organic solvent;
That company of Gray utilized it to disturb gesture in plastic cement industry in 1985, invented PET plastic cement vacuum blood collection series, became the product of most innovation in blood sampling field.
Disposal vacuum heparin tube is made up of plastic tube, stopper, label needle holder.According to the venous blood liquid measure that inspection institute needs, be pumped into corresponding vacuum in advance in process of production, utilize principle of negative pressure, by single use venous collection pin, automatic ration gathers venous samples.
Vacuum test tube industry first time turning point at 2001-2002.
Along with China's medicine equipment constantly integrates with international standard, in hematology testing, develop into disposal vacuum negative pressure hemostix mode by traditional Blood collection.Preliminary ripe, the production management preliminary specification of domestic vacuum industry production level, vacuum test tube industry has welcome turning point at 2001-2002, and ministry of Health of China performs administrative regulation, promotes clinical examination and must use disposable glass/PET vacuum test tube.
Within 2003, enter the vacuum test tube industry growth stage so far, mainly contain following two large features:
1) diversification of investment subjects, in the enterprise of domestic product PET vacuum test tube more than family more than 100;
2) production capacity expands rapidly, and according to statistics, global aggregated capacity has reached annual output 27.6 hundred million glass/PET vacuum test tubes, and wherein the share of glass tube is very little.Domestic year uses heparin tube total amount to be about 3,000,000,000.
As the plastic tube of one of vitals in hemostix, selected PET, as injection raw material, has good development space from safety, applicability, market sales volume.It has following characteristic:
1) PET pipe water white transparency is one of best transparent pipe beyond glass tube;
2) PET pipe is straight and upright, indeformable;
3) PET pipe intensity is high, can bear sizable impulsive force and not damaged, and have non-friable characteristic, security is high;
4) PET pipe has high gas barrier property, and fidelity is empty for up to more than 1 year;
5) PET pipe has by the function such as high-temperature sterilization and radiation treatment;
6) PET cost is lower.
We by after comprehensively analyzing it to numerous PET, therefrom have selected Shanghai and far spin bottle-grade polyester chip (PET) CB-651S, or CB-602 plastics are as the injection raw material of disposable PET vacuum test tube plastic tube.
The unique enterprise that can produce disposable PET vacuum test tube plastic tube in the sub-only Tianjin of middle ring.
Because disposable PET vacuum test tube industry belongs to new industry, the production materials of plastic tube are of a great variety, neither one unified standard, and product quality is very different, still have many defects to need to improve.
The structure of disposable PET vacuum test tube plastic tube belongs to thin-walled injection moulding part, direct use PET cannot direct injection molding, this is because bottle-grade polyester chip (PET) CB-651S is far spun in Shanghai as its intrinsic viscosity of injection raw material (dl/g) specification value be: 0.755 ± 0.015, or CB-602 as its intrinsic viscosity of injection raw material (dl/g) specification value is: 0.800 ± 0.015, flowing is not easy to during injection moulding, the product insatiable hunger mould injected, the not demoulding, need reduce intrinsic viscosity.
Various additives on market are numerous, and general professional, for improving the quality of products, always adopts and adds various additive, or the method for more additive formula.The product quality that result injects after using differs, and defect is obvious, and cause poor product quality, occur that the ratio of major defect is high, major defect comprises: 1, stain number is many, and diameter > 2.00mm; 2, product transparency is low; 3, product surface has viscosity, when the packing of product, after contacting with each other between product, makes tube wall to occur scratch; 4, bottle mouth position distortion is more obvious; 5, significant dimensions is overproof, causes difficulty to client's assembling; 6, the breakage-proof experiment tube body of bottleneck is broken, shows that product strength is low, does not meet safety requirements; 7, product percent of pass is low.
Summary of the invention
Object of the present invention is exactly for overcoming the deficiencies in the prior art, disposal vacuum heparin tube PET pipe injection moulding process is provided, have employed Shanghai and far spin bottle-grade polyester chip (PET) CB-651S or CB-602 as injection raw material, using processing aid master batch AP-30-1137S(60) as additive, and take less additive formula, by this method, product qualification rate reaching 99% ~ 99.5%, greatly improve product percent of pass, simplify the treatment process to reactant simultaneously, reduce power consumption, reduce costs, outward appearance and the impact of performance are all good; Plastic tube is made to meet the requirement of client.
The present invention is realized by such technical scheme: disposal vacuum heparin tube PET pipe Shooting Technique, is characterized in that: the main component of PET pipe: polyester slice (PET) 97-97.5%, additive 3-2.5%;
Use equipment comprises:
Injection machine Husky(Hess base), model: H225RS65/60;
Europeanized removal moisture drying feeding unit mahine, model: believe easy SCD-450U/200H-D;
The monochromatic machine tool of europeanized metering-type, model: believe easy SCM-38-12;
Water-cooled cooling water machine, model: believe easy SIC-25W;
Use injection mold: 32 chamber hot runner plastic injection moulds;
Hot runner controller, Husky(Hess base) 46th district;
Processing environment: 100,000 grades of clean rooms;
This technique comprises the step of following order:
1) materials: select Shanghai far spin bottle-grade polyester chip: PETCB-651S or CB-602 as injection raw material, Choice and process auxiliary agent master batch AP-30-1137S(60) as additive;
2) raw material drying: by PETCB-651S drying dehumidification 6hours, temperature: 160 ° of C ± 5 ° C
Or by PETCB-602 drying dehumidification 6hours, temperature: 168 ° of C ± 5 ° C;
The dew point of dry air is lower than-45 ° of C; Its residue water content is less than 0.0050%;
3) additive package: by PETCB-651S97-97.5%, processing aid master batch
AP-30-1137S(60) 3-2.5% to mix; Or by PETCB-60297-97.5%, processing aid master batch AP-30-1137S(60) 3-2.5% to mix;
4) plastify: raw material that is dry, that mix enters injection machine gun barrel/screw rod and plastifies, and injection machine gun barrel 1-5 sections of temperature are set as respectively: 276 ° of C, 282 ° of C, 290 ° of C, 295 ° of C, 298 ° of C; Fusion time: 1.9s;
5) matched moulds: mould closes;
6) injection filling mould: by the feed injection after plasticizing in die cavity; Nozzle temperature is set as: 300 ° of C; Hot flow path the 1st section of sprue temperature is set as: 330 ° of C, and 2-9 sections of sprue temperature are all set as:
295 ° of C, corresponding mould 1#-32# chamber hot flow path runner temperature is set as respectively:
1# chamber: 308 ° of C, 2# chambeies: 310 ° of C, 3# chambeies: 338 ° of C, 4# chambeies: 304 ° of C,
5# chamber: 312 ° of C, 6# chambeies: 302 ° of C, 7# chambeies: 310 ° of C, 8# chambeies: 338 ° of C,
9# chamber: 314 ° of C, 10# chambeies: 305 ° of C, 11# chambeies: 302 ° of C, 12# chambeies: 310 ° of C,
13# chamber: 302 ° of C, 14# chambeies: 310 ° of C, 15# chambeies: 310 ° of C, 16# chambeies: 310 ° of C,
17# chamber: 302 ° of C, 18# chambeies: 310 ° of C, 19# chambeies: 310 ° of C, 20# chambeies: 328 ° of C,
21# chamber: 310 ° of C, 22# chambeies: 310 ° of C, 23# chambeies: 328 ° of C, 24# chambeies: 318 ° of C,
25# chamber: 302 ° of C, 26# chambeies: 330 ° of C, 27# chambeies: 310 ° of C, 28# chambeies: 315 ° of C,
29# chamber: 302 ° of C, 30# chambeies: 310 ° of C, 31# chambeies: 330 ° of C, 32# chambeies: 310 ° of C;
Inject time: 0.31S; Injection pressure is set as: 2406PSI; 1-3 sections of injection speeds are set as respectively: 240mm/s, 260mm/s, 220mm/s;
7) pressurize: apply pressure to the melt in mould, until the sealing of cast gate place melt cooling; 1-3 periods of dwell times are set as respectively:: 0.7s, 0.4s, 0.3s; 1-3 sections of dwell pressures are set as respectively: 2000PSI, 1650PSI, 1450PSI;
8) cooling and shaping: plastic tube is shaping in die cavity; Cool time: 2.5s;
9) die sinking: the plastic tube demoulding; Eject pressure: 2450PSI, eject speed: 530mm/s, pressure is moved back on top: 2450PSI, top back speed degree: 530mm/s;
10) pack: plastic tube is packed;
By above-mentioned steps, the product stain diameter < 1.00mm of acquisition, quantity is less than 2, meets company standard; Range estimation product transparency is obviously bright; Product surface viscosity meets company standard, does not affect the carrying out of subsequent handling.
Reduce intrinsic viscosity, improve the mobility of PET, insignificant dimension overproof < 0.05mm; The breakage-proof experiment of bottleneck shows that product strength is high, meets company standard safety requirements; Product qualification rate reaching 99% ~ 99.5%.Compared with prior art, there is novelty and creativeness.
The invention has the beneficial effects as follows: disposal vacuum heparin tube PET pipe Shooting Technique, have employed Shanghai and far spin bottle-grade polyester chip (PET) CB-651S, or CB-602 need add processing aid master batch AP-30-1137S(60 as injection raw material) as additive, and the method for less additive formula, product qualification rate reaching 99% ~ 99.5%, product quality high-quality, greatly improve product percent of pass, simplify the treatment process to reactant simultaneously, eliminate product defects, process-cycle is reduced to 7.26S/ mould, decrease power consumption, reduce cost, outward appearance and the impact of performance are all good, plastic tube product is made to meet the requirement of client.
Accompanying drawing explanation
Fig. 1 is disposal vacuum heparin tube PET pipe front view.
Detailed description of the invention
For a more clear understanding of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments:
As shown in Figure 1, be disposal vacuum heparin tube PET pipe profile; Under the hardware conditions such as injection machine, subsidiary engine, 32 cavity moulds, processing environment, use Shanghai far to spin bottle-grade polyester chip (PET) CB-651S or CB-602 and need add processing aid master batch AP-30-1137S(60) additive 2.5-3%, disposal vacuum heparin tube PET pipe can be made to complete injection molding smoothly.Eliminate product defects, the process-cycle is reduced to 7.26S/ mould, product quality high-quality.
Process of the test key data of the present invention:
1) use the bottle-grade polyester chip (PET) of Yuanfang Industry (Shanghai) Co., Ltd., in its report, main specifications Value Data is:
CB-651SCB-602
Color is transparent
Intrinsic viscosity (dl/g) 0.755 ± 0.0150.800 ± 0.015
Fusing point (DEG C) 256 ± 2250 ± 3
Colour L > 82 > 82
La＞-4＞-4
Lb＜1＜1
Moisture content (%) < 0.4 < 0.4
2) evaluation criteria:
A) PET pipe injection defect (with additive about) inspection method:
Major defect inspection method
Stain: use some rule
Transparency is low: contrast range estimation
Nozzle distortion: range estimation
Product insatiable hunger mould: contrast range estimation
Demoulding difficulty: mould electronic protection detects
Off-dimension: slide calliper rule/special horizontal measurer
Tube-surface has viscosity: get firm demoulding product 8 A4 copy papers and be cut into 50*8mm totally 8;
Product is placed certain hour, and standing time, according to company standard requirement, is put on paper respectively, and whether test plastic tube can stick up paper slip.
Body is easily broken: use is fallen instrument 0.5kg weight 50cm and highly freely fallen the mouth of pipe, observes whether have Fragmentation Phenomena.
B) PET pipe injection defect (relevant with additive) is mainly by following standard rating:
Product defects standard rating
Stain, water are dirty: diameter < 1.50mm quantity≤2
Stain: diameter < 0.40mm quantity≤1
Transparency: overall contrast does not see a phenomenon for crow
Nozzle distortion: range estimation is without obviously distortion
Product insatiable hunger mould: nothing
Demoulding difficulty: nothing
Off-dimension: the overproof < 0.05mm of non-fit dimension
Tube-surface has viscosity: paper slip can not stick up by < 15S
Body is easily broken: bottle mouth position has distortion without large crackle
3) the above-mentioned evaluation criteria of experimental evidence is carried out, and carries out test and comprises:
A) additive-free test: directly use Shanghai far to spin bottle-grade polyester chip (PET) CB-651S or CB-602 injection moulding, because its intrinsic viscosity is high, be not easy to flowing during injection moulding, the major defects such as insatiable hunger mould, the not demoulding appear in the product injected.
B) have selected 11 kinds of additives altogether before and after, have employed 4 kinds of proportionings of 2%, 3%, 4%, 5%, far spin bottle-grade polyester chip (PET) CB-651S or CB-602 mixed injection molding respectively to test with Shanghai, to the analysis of Comprehensive Assessment data after test of many times, selected processing aid master batch AP-30-1137S(60) as additive, in the ratio of 3%, bottle-grade polyester chip (PET) CB-651S or CB-602 mixed injection molding is far spun in Shanghai with 97%, product no significant defect, optimal quality, cost are minimum, and proportioning is the most reasonable.
4) use Shanghai far to spin bottle-grade polyester chip (PET) CB-651S or CB-602 and add processing aid master batch AP-30-1137S(60) additive 3%, the plastic tube injected shows in quality:
Product defects shows
Stain, water is dirty: diameter < 1.50mm quantity≤2 because of have in particle moisture content slightly water smoke occur, performance is better than other additive;
Stain: purity is high, free from admixture occurs, be better than other additive without non-melt grain, performance;
Transparency: the phenomenon of acomia crow, this additive be blueness can be used as conditioning agent serve in and the yellow (Lb) of PET improve the transparency of body;
Nozzle distortion: range estimation is without obviously distortion; Reduce intrinsic viscosity, the mobility (ideal characterisitics k value is: 0.58-0.60dL/g) that improve PET is better than other additive;
Product insatiable hunger mould: nothing;
Demoulding difficulty: nothing;
Off-dimension: the overproof < 0.05mm of non-fit dimension;
Tube-surface has viscosity: it is be better than the carrying out that other additive does not affect subsequent handling most that paper slip can not be sticked up this performance by placement < 8S;
Body is easily broken: bottle mouth position has distortion not affect product strength without large crackle additive to meet safety requirements;
Product percent of pass: 99.5%;
Injection cycle (S): 7.26 ± 0.25;
5) after in actual production more than a year, monochromatic for europeanized metering-type machine tool is believed easy SCM-38-12 processing aid master batch AP-30-1137S(60) proportioning of additive adjusts scope at 2.5-3%, each production makes an inventory depletion of additive data also in this scope, the product produced is without major defect, without customer complaint, product quality is best.
Far spinning bottle-grade polyester chip (PET) CB-651S or CB-602 injection moulding using Shanghai to produce disposable PET vacuum test tube plastic tube and add upper marine products processing aid master batch AP-30-1137S(60) product produced of additive 2.5-3% is after having issued 12 clients, and the evaluation provided is: excellent quality.
6) after test of many times aggregation of data being analyzed and evaluates (comprising the judge of client), additive processing aid master batch AP-30-1137S(60) far spin after bottle-grade polyester chip (PET) CB-651S or CB-602 be combined with Shanghai, without major defect, product quality is best, and proportioning is the most reasonable.
This Shooting Technique feature and advantage:
Shooting Technique improves the quality of product, and make plastic tube meet the requirement of client, outward appearance and the impact of performance are all good;
The additive formula of 2.5-3%, on the basis ensureing product quality, take into account cost again; Have passed through this independent research Shooting Technique of production leadtime more than a year, to drastically reduce the area product bad; This independent research Shooting Technique reaches the object shortening the production cycle.
Producing the product of more than 1,000 ten thousand over one year, also not having client to raise an objection for adopting the product of this explained hereafter.
According to the above description, the solution of the present invention can be realized in conjunction with art technology.
Claims (1)
1. disposal vacuum heparin tube PET pipe Shooting Technique, is characterized in that: the main component of PET pipe: polyester slice PET97-97.5%, additive 3-2.5%;
Use equipment comprises:
Injection machine Husky(Hess base), model: H225RS65/60;
Europeanized removal moisture drying feeding unit mahine, model: believe easy SCD-450U/200H-D;
The monochromatic machine tool of europeanized metering-type, model: believe easy SCM-38-12;
Water-cooled cooling water machine, model: believe easy SIC-25W;
Use injection mold: 32 chamber hot runner plastic injection moulds;
Hot runner controller, Husky(Hess base) 46th district;
Processing environment: 100,000 grades of clean rooms;
This technique comprises the step of following order:
1) materials: select Shanghai far spin bottle-grade polyester chip: PETCB-651S or CB-602 as injection raw material, Choice and process auxiliary agent master batch AP-30-1137S(60) as additive;
2) raw material drying: by PETCB-651S drying dehumidification 6hours, temperature: 160 ° of C ± 5 ° C
Or by PETCB-602 drying dehumidification 6hours, temperature: 168 ° of C ± 5 ° C;
The dew point of dry air is lower than-45 ° of C; Its residue water content is less than 0.0050%;
3) additive package: by PETCB-651S97-97.5%, processing aid master batch AP-30-1137S(60) 3-2.5% to mix;
Or by PETCB-60297-97.5%, processing aid master batch AP-30-1137S(60) 3-2.5% to mix;
4) plastify: raw material that is dry, that mix enters injection machine gun barrel/screw rod and plastifies, and injection machine gun barrel 1-5 sections of temperature are set as respectively: 276 ° of C, 282 ° of C, 290 ° of C, 295 ° of C, 298 ° of C; Fusion time: 1.9s;
5) matched moulds: mould closes;
6) injection filling mould: by the feed injection after plasticizing in die cavity; Nozzle temperature is set as: 300 ° of C; Hot flow path the 1st section of sprue temperature is set as: 330 ° of C, and 2-9 sections of sprue temperature are all set as: 295 ° of C, and corresponding mould 1#-32# chamber hot flow path runner temperature is set as respectively:
1# chamber: 308 ° of C, 2# chambeies: 310 ° of C, 3# chambeies: 338 ° of C, 4# chambeies: 304 ° of C,
5# chamber: 312 ° of C, 6# chambeies: 302 ° of C, 7# chambeies: 310 ° of C, 8# chambeies: 338 ° of C,
9# chamber: 314 ° of C, 10# chambeies: 305 ° of C, 11# chambeies: 302 ° of C, 12# chambeies: 310 ° of C,
13# chamber: 302 ° of C, 14# chambeies: 310 ° of C, 15# chambeies: 310 ° of C, 16# chambeies: 310 ° of C,
17# chamber: 302 ° of C, 18# chambeies: 310 ° of C, 19# chambeies: 310 ° of C, 20# chambeies: 328 ° of C,
21# chamber: 310 ° of C, 22# chambeies: 310 ° of C, 23# chambeies: 328 ° of C, 24# chambeies: 318 ° of C,
25# chamber: 302 ° of C, 26# chambeies: 330 ° of C, 27# chambeies: 310 ° of C, 28# chambeies: 315 ° of C,
29# chamber: 302 ° of C, 30# chambeies: 310 ° of C, 31# chambeies: 330 ° of C, 32# chambeies: 310 ° of C;
Inject time: 0.31S; Injection pressure is set as: 2406PSI; 1-3 sections of injection speeds are set as respectively:
240mm/s、260mm/s、220mm/s；
7) pressurize: apply pressure to the melt in mould, until the sealing of cast gate place melt cooling; 1-3 periods of dwell times are set as respectively: 0.7s, 0.4s, 0.3s; 1-3 sections of dwell pressures are set as respectively: 2000PSI, 1650PSI, 1450PSI;
8) cooling and shaping: plastic tube is shaping in die cavity; Cool time: 2.5s;
9) die sinking: the plastic tube demoulding; Eject pressure: 2450PSI, eject speed: 530mm/s, pressure is moved back on top:
2450PSI, top back speed degree: 530mm/s;
10) pack: plastic tube is packed;
By above-mentioned steps, the product stain diameter < 1.00mm of acquisition, quantity is less than 2; Range estimation product transparency is obviously bright; Product qualification rate reaching 99% ~ 99.5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724880.2A CN103640141B (en) | 2013-12-18 | 2013-12-18 | Disposal vacuum heparin tube PET pipe Shooting Technique |
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| CN201310724880.2A CN103640141B (en) | 2013-12-18 | 2013-12-18 | Disposal vacuum heparin tube PET pipe Shooting Technique |
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| CN103640141B true CN103640141B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104149259A (en) * | 2014-07-25 | 2014-11-19 | 马鞍山市西满塑料包装有限公司 | Production method of bottle embryos |
| CN105348570A (en) * | 2015-11-23 | 2016-02-24 | 安徽信灵检验医学科技有限公司 | Disposable degradable vacuum blood collecting tube and manufacturing method thereof |
| CN106003540B (en) * | 2016-06-02 | 2018-10-02 | 威海赛威医疗科技有限公司 | A kind of processing technology of disposable medical sodium citrate vacuum blood collection tube |
| CN106078465A (en) * | 2016-06-20 | 2016-11-09 | 苏州鱼跃医疗科技有限公司 | Blood taking tube mold cores, its finishing method and blood taking tube forming method |
| CN110090676A (en) * | 2019-04-04 | 2019-08-06 | 浙江拱东医疗器械股份有限公司 | Micro tube |
| CN112321997B (en) * | 2020-11-04 | 2022-12-13 | 宁波欣上材料科技有限公司 | Disposable vacuum blood collection tube test tube and preparation method thereof |
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| CN2317068Y (en) * | 1997-12-26 | 1999-05-05 | 於岩君 | Injection plastic moulding apparatus with several mould cavities |
| CH695332A5 (en) * | 2000-12-22 | 2006-04-13 | Netstal Ag Maschf Giesserei | Cooler for sleeve-shaped injection molded parts, as well as the use of the after-cooler. |
| ITRM20010138A1 (en) * | 2001-03-16 | 2002-09-16 | Sipa Spa | DEVICE AND METHOD FOR COOLING AND THERMAL CONDITIONING OF A TUBULAR OBJECT. |
| CN1730116A (en) * | 2004-08-06 | 2006-02-08 | 贝克顿迪肯森公司 | Conduct assembly and injection molding technological process and making equipment thereof |
| EP1987936A4 (en) * | 2006-02-03 | 2013-01-16 | Molmasa Aplicaciones Tecn S L | Apparatus and method for the production of bimaterial hollow bodies by means of injection overmoulding |
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