CN104960195A - Joint structure used for flow casting control and weld stopping control of POCT chip product ultrasonic welding - Google Patents
Joint structure used for flow casting control and weld stopping control of POCT chip product ultrasonic welding Download PDFInfo
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- CN104960195A CN104960195A CN201510349820.6A CN201510349820A CN104960195A CN 104960195 A CN104960195 A CN 104960195A CN 201510349820 A CN201510349820 A CN 201510349820A CN 104960195 A CN104960195 A CN 104960195A
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
- B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of the parts to be joined
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- 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
- B29L2031/00—Other particular articles
- B29L2031/756—Microarticles, nanoarticles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a joint structure used for flow casting control and weld stopping control of POCT chip product ultrasonic welding. The joint structure is characterized in that a micro channel, weld ponds, weld stopping platforms and flow blocking platforms are formed in a substrate; energy-oriented ridges are formed in a cover plate; the cover plate is installed on the substrate, and the alignment and location between the cover plate and the substrate are achieved through the cooperation between the energy-oriented ridges and the weld ponds; in the ultrasonic welding process, molten polymers are stored in the weld ponds, the polymers are prevented from overflowing, and the melting and flow casting control of the polymers is achieved; a large amount of welding energy is absorbed through the weld stopping platforms, the fusion welding operation of the energy-oriented ridges is stopped, and the weld stopping control is achieved. By means of the joint structure, the problems that in the ultrasonic welding process of a POCT chip, the micro channel is prone to being blocked, and the control accuracy of the channel height is poor are solved, and the joint structure has the advantages of being simple in structure, convenient to align and high in welding strength.
Description
Technical field
The present invention relates to a kind of curtain coating for the ultrasonic bonding of POCT chip product control and only weld the joint design controlled, belong to medical polymer POCT chip product manufacturing technology field.
Background technology
Along with the fast development of science and technology, medical laboratory work is just moving towards easy, the just-in-time stage.POCT (Point Care of Testing) refers to the detection carried out beyond traditional inspection center by hospital professional person or layman, detects also referred to as bedside.POCT has quick obtaining testing result, use whole blood sample, sample consumption is few, the sample turnaround time is short, the feature of instrument miniaturization, report the test just-in-time.The application of POCT technology simplifies the detection method of traditional disease, instead of the checkout equipment needing high maintenance cost, from initial blood sugar, the myocardial damage till now of pregnant extension of detecting capability, cancer detection, Viral diagnosis and monitor drug concentration.In the last few years, polymer P OCT chip tromps to industrialization from the experimental stage, but the involution technology of POCT chip is the bottleneck problem of mass production always, not only requires that sealing strength is high, speed is fast, cost is low, also require not easily to block micro-raceway groove, involution is even, simple to operate.Therefore, the task of top priority that low cost, high efficiency, high reliability and encapsulation technology simple to operate have become the practical and industrialization of POCT chip product is developed.
At present, conventional POCT chip sealing method mainly contains: gluingly to connect, solvent welding, directly hot key and, plasmaassisted bonding, laser weld bonding etc.The defect of these methods existence all in various degree self, wherein, gluing connecing needs to introduce interstitial to realize the involution of chip with solvent welding, and interstitial not only can easily block micro-raceway groove, and has increased the weight of process complexity; Direct hot key and the higher bonding temperature of needs and longer bonding time, therefore, production efficiency is lower; Plasmaassisted key and be the direct hot key and method that improve, changes the surface nature of material by plasma treatment, and by hot key and the involution realizing chip, production efficiency is lower, complex process; Although laser weld bonding efficiency is high, equipment cost is high, and Material selec-tion also exists limitation.
Ultrasonic bonding is the high-frequency mechanical vibration by soldering tip, make constantly to rub, oppress and discharge between material interface to be welded, again can structure (energy-oriented-ridge) by leading of projection that chip is arranged, realize the concentration of energy in welding process, local heat production, energy-oriented-ridge is melted, realizes the process of chip involution.2006, Truckenmueller etc. carried out supersonic bonding test to the micro element that the characteristic sizes such as micro one-way valve and the micro-valve pump of dish type are 500 μm.This experimental verification utilizes ultrasonic wave to carry out the feasibility of polymers micro-devices encapsulation.Ultrasonic bonding has that efficiency is high, intensity is high, simple to operate, without the need to advantages such as interstitials, so, ultrasonic welding technique can be larger enhance productivity, reduce complex process degree and alleviate cost, make the mass of POCT chip, industrialization become possibility.
Because POCT chip integration is high, complex structure, passage are trickle.So the structural design of welding point is a very important link, if joint design design is improper, many drawbacks can be produced, be embodied in:
1) in welding process to fusing polymer controls ability, under pressure and dither, the polymer curtain coating of fusing is sprawled, and is easy to block micro-raceway groove.
2) depth of weld control ability is poor, and after welding, channel height is uneven, affects the type of flow of fluid in micro-raceway groove, causes follow-up medical science accuracy of detection.
3) joint design welding parameters is more responsive, and chip chamber welding uniformity is poor, and testing result deviation is comparatively large, affects the stability that follow-up medical science detects, makes quantitative analysis more difficult.
4) internal stress of welding generation is excessive, transports and easily snaps in use procedure and break.
Current ultrasonic weld joints structure is mainly used in the welding of macroscopical plastic device, carries out ultrasonic bonding and still has many limitations, be embodied in the POCT chip with a large amount of micro structure array:
1) more difficultly the complex joint structure being similar to macroscopic devices is produced.Micro-structural mainly has the two-dimensional structure of certain altitude, and the manufacture method of its manufacture craft and macroscopic devices has a great difference, and the more difficult Three dimensional joint structure producing complexity, as tenon tongue type, staged, interlocking-type etc.
2) higher to welding required precision, the joint design of macroscopic devices is more difficult meets its required precision.POCT chip internal microstructure size, at micron order, has higher requirement to welding precision.More than the general several millimeter of size of macroscopic devices, welding precision deviation is comparatively large, does not meet the requirement of POCT chip.
3) the curtain coating control ability of existing joint design is poor, and the polymer curtain coating melted in welding process is sprawled and can be blocked microchannel, affects testing result and precision.
4) only weldering control ability is poor for existing joint design, and in welding process, the more difficult height realizing microchannel is homogeneous, can produce larger impact to follow-up testing result.
Therefore, design a kind of POCT chip product ultrasonic bonding that is applicable to, and can curtain coating controls and only weldering controls joint design be the task of top priority realizing the fast development of POCT industry.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of joint design for the ultrasonic bonding of POCT chip product, for controlled melting polymer curtain coating and control welding and stop, to ensure that micro-raceway groove does not get clogged and the pin-point accuracy of micro-raceway groove.The present invention by energy-oriented-ridge, micro-raceway groove, choked flow platform, welding pond and only welding stage form; It is characterized in that:
Energy-oriented-ridge is distributed in micro-raceway groove both sides;
Energy-oriented-ridge width is 30 ~ 200 μm, is highly 30 ~ 150 μm;
Energy-oriented-ridge terminal end shape can be rectangle, triangle or semicircle.
Micro-channel width >=30 μm, the degree of depth is >=5 μm;
Choked flow platform is between welding pond and micro-raceway groove;
Choked flow platform upper surface is with only welding stage upper surface is concordant, and width is 50 ~ 300 μm;
Welding tank depth should ensure the height 5 ~ 30 μm being less than energy-oriented-ridge, width 100 ~ 300 μm;
Only welding stage width >=1mm, and be positioned at micro-raceway groove both sides.
The gap of 10 ~ 50 μm should be left between energy-oriented-ridge and choked flow platform;
Energy-oriented-ridge is arranged on cover plate, and micro-raceway groove, choked flow platform, welding pond, only welding stage are arranged on substrate;
By coordinating of energy-oriented-ridge and welding pond, realize aiming between cover plate with substrate.
This structure both can adopt injection molding forming method to make, and hot-press molding method also can be adopted to make.In supersonic welding termination process, major part welding energy can be assembled near energy-oriented-ridge, when energy exceedes certain value, energy-oriented-ridge will first melt, due to the existence in welding pond, the polymer of thawing can be made to be stored in welding pond, thus block the curtain coating of melt polymer, realize curtain coating and block control technology, avoid blocking micro-raceway groove.Along with the continuation of energy-oriented-ridge is melted, cover plate is also slowly diminishing with the gap of stopping welding stage, when energy-oriented-ridge is melted to a certain degree, the lower surface of cover plate will contact the only welding stage of substrate, because of till welding stage area larger, larger high-frequency vibratory energy can be absorbed, but this energy is still not enough to fusing only welding stage, and energy-oriented-ridge stops absorbing energy, stops welding, therefore channel height will be ensured, what realize hot polymerization collection and heat dissipation equalization only welds control technology.
Beneficial effect of the present invention is, except can ensureing that the micro-raceway groove of POCT chip does not get clogged, can also ensure the pin-point accuracy of micro-raceway groove.Solve the problem of easily blocking micro-raceway groove and micro-raceway groove welding precision difference.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure view of the present invention.
Fig. 2 is rectangle energy-oriented-ridge topology view of the present invention.
Fig. 3 is the semicircle energy-oriented-ridge topology view of the present invention.
Fig. 4 is triangle energy-oriented-ridge topology view of the present invention.
In figure: 1 energy-oriented-ridge; 2 micro-raceway grooves; 3 choked flow platforms; 4 welding ponds; 5 stop welding stage.
Detailed description of the invention
By reference to the accompanying drawings the specific embodiment of the present invention is described.
Fig. 1 is three-dimensional structure view of the present invention, comprising: energy-oriented-ridge 1, micro-raceway groove 2, choked flow platform 3, welding pond 4, only welding stage 5.
Energy-oriented-ridge 1 terminal end shape can be rectangle, triangle and semicircle.Fig. 2 is rectangle energy-oriented-ridge topology view, and Fig. 3 is semicircle energy-oriented-ridge topology view, and Fig. 4 is triangle energy-oriented-ridge topology view.
By coordinating of energy-oriented-ridge 1 and welding pond 4, realize aiming between cover plate with substrate.
In supersonic welding termination process, major part welding energy can be assembled near energy-oriented-ridge, when energy exceedes certain value, energy-oriented-ridge will first melt, due to the existence in welding pond, the polymer of thawing can be made to be stored in welding pond, thus block the curtain coating of melt polymer, realize curtain coating and block control technology, avoid blocking micro-raceway groove.Along with the continuation of energy-oriented-ridge is melted, cover plate is also slowly diminishing with the gap of stopping welding stage, when energy-oriented-ridge is melted to a certain degree, the lower surface of cover plate will contact the only welding stage of substrate, because of till welding stage area larger, larger high-frequency vibratory energy can be absorbed, but this energy is still not enough to fusing only welding stage, and energy-oriented-ridge stops absorbing energy, stops welding, therefore channel height will be ensured, what realize hot polymerization collection and heat dissipation equalization only welds control technology.Concrete operating process is as follows:
Design corresponding injection mold or hot pressing die according to the present invention and POCT chip structure, and carry out injection moulding and hot pressing, the cover plate required for production and substrate.
Cover plate and substrate are aimed at, cover plate upper, substrate under, ensure energy-oriented-ridge 1 all contact only welding stage 4 bottom surfaces, and put into together on the welding stage of ultrasonic plastic welder, aim at the position of POCT chip and soldering tip.
Arrange the relevant parameter of ultrasonic plastic welder, welding parameter should ensure that substrate and cover plate fit tightly completely, and can not melt only welding stage.
Decline soldering tip, opens ultrasonic plastic welder, completes the ultrasonic bonding of POCT chip.
Claims (2)
1. control for the curtain coating of POCT chip product ultrasonic bonding and the only joint design that controls of weldering, comprising: energy-oriented-ridge (1), micro-raceway groove (2), choked flow platform (3), welding pond (4) and stop welding stage (5); It is characterized in that:
Energy-oriented-ridge (1) is distributed in micro-raceway groove (2) both sides;
Energy-oriented-ridge (1) width is 30 ~ 200 μm, is highly 30 ~ 150 μm;
Energy-oriented-ridge (1) terminal end shape is rectangle, triangle or semicircle;
Micro-channel width >=30 μm, the degree of depth is >=5 μm;
Micro-raceway groove (2) is arranged between two welding ponds (4);
Welding pond (4) degree of depth is less than energy-oriented-ridge (1) height 5 ~ 30 μm, and the width of welding pond (4) is 100 ~ 300 μm;
Only welding stage (5) width >=1mm, and be positioned at micro-raceway groove (2) both sides;
Choked flow platform (3) is positioned between welding pond (4) and micro-raceway groove (2);
Choked flow platform (3) upper surface is with only welding stage (5) upper surface is concordant, and choked flow platform (3) width is 50 ~ 300 μm, and is positioned at micro-raceway groove (2) both sides;
The gap of 10 ~ 50 μm is had between energy-oriented-ridge (1) and choked flow platform (3).
2. a kind of curtain coating for the ultrasonic bonding of POCT chip product controls and only welds the joint design controlled as claimed in claim 1, it is characterized in that: joint adopts medical grade polymer material NAS30.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349820.6A CN104960195A (en) | 2015-06-19 | 2015-06-19 | Joint structure used for flow casting control and weld stopping control of POCT chip product ultrasonic welding |
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| CN201510349820.6A CN104960195A (en) | 2015-06-19 | 2015-06-19 | Joint structure used for flow casting control and weld stopping control of POCT chip product ultrasonic welding |
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| CN104960195A true CN104960195A (en) | 2015-10-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095829A1 (en) * | 2016-11-23 | 2018-05-31 | Koninklijke Philips N.V. | Ultrasonic welding of a microfluidic device |
| CN111302300A (en) * | 2020-03-02 | 2020-06-19 | 大连理工大学 | Method for manufacturing ultrasonic welding head for connecting thin-film microfluidic chip and supporting plate |
| CN113173335A (en) * | 2021-04-14 | 2021-07-27 | 深圳市固源塑胶制品有限公司 | Ultrasonic welding structure of hemispherical energy guiding rib |
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| CN101088912A (en) * | 2007-05-30 | 2007-12-19 | 大连理工大学 | Ultrasonic bonding structure for guiding energy, Guiding flow and locating precisely of polymer microstructure |
| US20090152326A1 (en) * | 2007-12-17 | 2009-06-18 | Electronics And Telecommunications Research Institute | Ultrasonic welding-based microfluidic device and method of manufacturing the same |
| CN101544350A (en) * | 2009-01-05 | 2009-09-30 | 大连理工大学 | Microstructure used for supersonic bonding of micro-passages of polymer microflow-control chips |
| JP2011161578A (en) * | 2010-02-10 | 2011-08-25 | Fujifilm Corp | Joining method, and method for manufacturing microchannel device |
| CN103640211A (en) * | 2013-12-23 | 2014-03-19 | 中国石油大学(华东) | Flexible material assisted polymer micro-structure ultrasonic bonding encapsulating method |
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| WO2018095829A1 (en) * | 2016-11-23 | 2018-05-31 | Koninklijke Philips N.V. | Ultrasonic welding of a microfluidic device |
| US10549480B2 (en) | 2016-11-23 | 2020-02-04 | Koninklijke Philips N.V. | Ultrasonic welding of a microfluidic device |
| CN111302300A (en) * | 2020-03-02 | 2020-06-19 | 大连理工大学 | Method for manufacturing ultrasonic welding head for connecting thin-film microfluidic chip and supporting plate |
| CN111302300B (en) * | 2020-03-02 | 2022-06-21 | 大连理工大学 | Method for manufacturing ultrasonic welding head for connecting thin-film microfluidic chip and supporting plate |
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