CN109694179A - Hand-set lid protects the 3D compression molding and fiber reinforcement device and method of glass - Google Patents
Hand-set lid protects the 3D compression molding and fiber reinforcement device and method of glass Download PDFInfo
- Publication number
- CN109694179A CN109694179A CN201910100286.3A CN201910100286A CN109694179A CN 109694179 A CN109694179 A CN 109694179A CN 201910100286 A CN201910100286 A CN 201910100286A CN 109694179 A CN109694179 A CN 109694179A
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- Prior art keywords
- glass
- fiber
- hand
- set lid
- pressed
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
- C03B13/12—Rolling glass with enclosures, e.g. wire, bubbles, fibres, particles or asbestos
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B21/00—Severing glass sheets, tubes or rods while still plastic
- C03B21/02—Severing glass sheets, tubes or rods while still plastic by cutting
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
Abstract
The invention discloses the 3D compression molding of hand-set lid protection glass and fiber reinforcement device and method; feeding system is with flat ellipse glass melt feed; fiber distribution system evenly distributes physics enhancing web or staple fiber on flat ellipse glass melt, and the flat ellipse glass melt for being assigned web or staple fiber is pressed into glass tape by roll-in system in advance；After cutting system cuts glass tape, glass tape to be pressed is subjected to the adjusting of forming temperature system, moulding system treats pressure glass tape and carries out 3D compression molding.Shaping efficiency of the invention improves 7 times or more, and single line odd-numbered day production quantity is up to 8000 more than one piece；The once molding formed technique of present invention breakthrough ultrathin products; the 3D compression molding surface quality of hand-set lid protection glass is substantially improved; the cold line of surface 3D hand-set lid protection glass surface and scissors line phenomenon are eliminated, and critical impulse intensity value concentration degree improves, discreteness reduces.
Description
Technical field
The present invention relates to glass be pressed and molded technical field, and in particular to hand-set lid protect glass 3D compression molding and
Fiber reinforcement device and method.
Background technique
In October, 2013, Samsung, South Korea issue a 3D curve screens mobile phone, are different from conventional mobile phone screen plane
Feature, but screen has certain radian, as shown in Figure 1.The mobile phone grip feeling of 3D moulding is good, meets retina radian, video body
It is good to test effect.3D curve screens are to be commonly called as 3D cover board protection glass by the 3D constitution realization of glass outside screen.3D curve screens
Mobile phone screen area is bigger, shields accounting up to 93% or more, visual display effect is fabulous.
On December 7th, 2018, China announce that the 5G communications frequency range of development and application is 2.5-2.6GHz, 3.4-
3.6GHz,4.8-4.9GHz.The 5G communication technology have at high speed 100 times or more of 4G (its speed be), (its time delay is only for low delay
For characteristics such as 1ms), low energy consumption, network all standings, people's moment can be made to be in network, reach all things on earth interconnection state.China
Will be in beginning 5G communication business in 2019, therefore the 5G communication technology can bring more humanized, facilitation, safety
Property, more efficient service, people is closely connected with periphery things together with.
Smart phone has become important personal digital assistant device, and glass material becomes smart phone important component,
Such as front shroud, display screen, back shroud.Under 5G communication condition, cell phone rear cover plate is using glass as preferred material, because of metal material
Material 5G high-frequency signal can be generated it is significant absorb and shielding action, and glass material can be such that electromagnetic signal smoothly transmit and saturating
It crosses, the rear cover of metal material needs 9 piece-root graftings receipts and transmitting antenna, and glass back cover only needs 2 antennas, illustrates glass material
Material does not generate signal shielding, there is good wave transparent ability.
In addition, metal back cover is almost without any application possibility, and glass material can as wireless charging technology develops
To be competent at very well.For the high-frequency signal of 5G communication, glass material must reduce dielectric constant, to reduce dielectric damage
Consumption, therefore high permeability (light transmission and wave transparent), high rigidity, the wearability of glass are to shield and shield comprehensively the excellent of curved surface hand-set lid comprehensively
Material selection, but the brittleness of glass and crash resistance deficiency are also its key, therefore the back shroud drop resistant performance as smart phone
It is particularly important.
3D moulding cell phone rear cover plate protects glass to pass through hot bending process usually using thickness 0.7-0.9mm plate glass original piece
Molding, back shroud protection glass generally uses can be with the alkali aluminosilicate glass of chemical strengthening, such as Chinese patent
The composition of glass chemistry described in ZL200810147442.3 and chemical strengthening method, the glass chemistry form (wt%): SiO2 55
~65, B2O30.1~3, Al2O36~24, MgO+CaO+BaO+SrO 3~9, ZrO20~1, ZnO 0~2, Cl20.1~
0.5、Sb2O30.1~1.0, SO30.1~0.5, F20.1~0.5；Above-mentioned glass composition is raw by well known plate glass
The preparation of production method, intensive treatment is then carried out using chemical toughening method, maximum ion exchanges depth up to 75 μm, maximum surface
Compression reaches 830MPa.Its chemical toughening method use potassium nitrate fused-salt medium, temperature be 430 DEG C~490 DEG C, processing the time be
3~8 hours.Its main technical principle is that glass body intensity (elasticity modulus, hardness) is promoted to rely on alumina content increasing
Calais realizes, improves glass surface adhesion strength；Make (0-75 μm) of glass surface production additionally by the reinforcing of chemical strengthening ion
Raw compression inhibits and Florence Griffith fine crack is prevented inwardly to extend under percussion, and then promotes glass drop resistant performance.
So far, mobile phone protects glass mainly with the serial alkali aluminium of Corning Incorporated Gorilla (gorilla) with high-strength cover plate
Silicate glass is as industry mark post, and with intensity height, modulus of elasticity is big, wearability and scratch resistant are good, easy progress chemistry is strong
The characteristics of ion exchange enhancing of change.After going into operation from 2007, P series glass kind Al2O3Content is constantly promoted, from
Gorilla 1 generation 8wt%~9wt%Al2O3Increase to 23wt%~24wt%Al2O3, the 6th generation product is had evolved to so far,
Wherein SiO2For 55wt%~62wt%, Na2O is 8wt%~15wt%, while 2wt%~4wt%Li is added2O and 3wt%~
6wt%P2O5Equal oxides promote ion exchange.In paper " the ultra-thin alkali alumina silicate glass general situation of development of chemical reinforcing type and exhibition
Hope " in, ion exchange rear surface compression >=850MPa of Gorilla cover board protection glass, bearing stress depth >=75mm,
Impact strength can make whole mobile phone drop into rough surface upper cover plate protection glass serviceability rate up to 80% from 1.6m height.
In order to promote the impact strength of cover board protection glass, having carried out a large amount of technological innovations in glass body first is to visit
Rope is based primarily upon improvement in terms of glass structure, reduces glass brittleness, creates bigger network gap, be conducive to chemical strengthening from
Son exchange occurs；It is improved secondly by the velocity of ion exchange of chemical strengthening, ion exchange depth is promoted to improve, impact is avoided to make
Used time crackle breaks through compressive stress layer and extends to inside glass tensile stress layer, so beginning to use two after 4 generation of Gorilla product
Footwork chemical strengthening technique promotes ion exchange depth to 75 μm or more from 50 μm.
Under existing industrial condition, Al is relied on2O3Content raising can face a series of problems such as glass melting and molding, several
It has been encountered greater difficulties than ever that, deep ploughing and intensive cultivation can only be also carried out in terms of glass structure.In addition, chemical strengthening is because of hand
Cover glass sheet, which has, there is second of research boom, and nearly all fused salt type, (high temperature modification [is higher than ion-exchange temperature
Knee pointy temperature], low form [be lower than knee pointy temperature]), ion exchange number (one-step method, two step method) is attempted and visits
Rope.
3D cover board protection glass machining technique process is as shown in Fig. 2, process includes that original sheet glass cuts blanking, CNC processing
The processes such as (computer control precise Carving Machining), hot bending shape, surface grinding polishing, chemical strengthening, silk-screen printing/plated film.
Wherein hot bending shape technique belongs to highly important process procedure, it is the key that realize mobile phone 3D shape.Hot bending shape is basic
Technical principle is that plate glass original piece is heated near softening point, applies certain pressure by means of mold, makes the plate of softening
Original sheet glass is shaped to expendable 3D form, and 3D cover board protects glass bending moulding process principle and temperature schedule such as Fig. 3
It is shown.
3D cover board protects glass bending moulding process although having pushed the development of 3D shape mobile phone, and 3D cover board protects glass
Glass hot bending shape technique still remains following problem:
1,3D cover board protection glass bending finished product after molding thinning, the only original sheet glass thickness 0.6- that shows avris
0.7 times, as shown in figures 1 and 3；Mobile phone products after assembling, it is relatively poor in crash resistance, often there is hand-set lid avris portion
Rupture；
2,3D cover board protection glass bending moulding process belongs to second heat processing and forming technology, will increase dramatically energy consumption；
3, hot bending shape temperature is near softening point, and existing Gorilla P series glass softening point temperature is all larger than 850
DEG C, only graphite jig can be competent at, and also need to carry out graphite jig inert gas shielding and heating furnace sealing, even if this
The oxidation of sample graphite mold surface and surface, which collapse, becomes the key for restricting 3D cover board protection glass surface quality；
4, furnace temp field uniformity and die pressure are difficult accurately to control；
5,3D cover board protection glass bending molding manufacturing cost is higher, and the big 70-120 member/piece of 3D bend glass price is
3-4 times of 2.5D glass price；
6,3D cover board protection glass bending forming manufacture technique difficulty is larger, and yields generally only has 40~60%, even
It is lower；
7,3D cover board protects glass bending shaping efficiency generally not high, for example, 18 station glass bending molding machines production capacity only
For 700-1000 piece/for 24 hours.
Currently, glass compression moulding technique mainly have feeding system (glass melt be fed technique process it is as shown in Figure 4),
Distribution system, formation system (process of glass melt punch forming process is as shown in Figure 5).Feeding system is mostly punching press and scissors
It constitutes, glass melt is cut into the consistent drop of weight by scissors；Distribution system is mainly used for drop distribution, is sent to it accordingly
Mold in；Formation system is mainly made of mold (former) 2 and pressure head (formpiston) 3, after glass melt 1 enters mold 2, pressure
First 3 depressed fast makes glass melt 1 be filled in the gap between pressure head 3 and mold 2, forms glassware 4, and bed die ejection takes
Glassware 4 out.
But traditional compression moulding can only produce the glassware of thickness 2mm or more, and glass melt quality is required to be greater than
100g, and 5-6 inch hand-set lid protection glass quality only has 16-19 grams and thickness requirement 0.6-0.8mm, when glass melt is fed
When quality is less than normal, the brought shortage of heat problem of glass melt will lead to, mould inner surface can not be made to maintain opposite equilibrium temperature,
After glass melt enters mold, glass melt heat is rapidly absorbed, and causes to be quickly cooled down with mold contact glass, viscosity
It increases rapidly, even if glass melt also cannot effectively extend, and the glass contacted with mold under the effect of pressure head (formpiston) pressure
Glass surface will appear the cold line of apparent glass, as shown in fig. 6, being similar to wave pours into the form presented when sandy beach, serious shadow
Glass surface appearance and flatness are rung, it can not be made to disappear totally using flame polish, grinding and polishing needs to consume a large amount of people
Power material resources.In addition, glass melt is when scissors action is cut to form drop, scissors is in the state of cooling, at the cutting of drop
It will form very coarse ellipse scissors trace, disappearance can not be flattened when suppressing into mold, but it is molten to be extruded to glass
Internal portion, as shown in fig. 7, scissors trace can hardly be eliminated, long-standing problem press-formed product presentation quality.
It is insufficient based on the protection glass bending molding of above-mentioned 3D cover board and once molding formed technique deficiency and impact strength,
Urgent need is improved in terms of moulding process and impact strength, and production efficiency is substantially improved, reduces energy consumption, reduction surface lacks
It falls into, complete machine crash resistance improves.
Summary of the invention
Aiming at the shortcomings existing in the above problems, the present invention provides the 3D compression molding of hand-set lid protection glass
And fiber reinforcement device and method, the 3D compression molding of cell phone rear cover plate protection glass and physics enhancement method are combined, it is real
Existing shaping efficiency improves and impact strength is promoted.
The invention discloses a kind of 3D compression molding of hand-set lid protection glass and fiber reinforcement devices, successively include:
Feeding system for glass melt to be fed with flat ellipse glass melt, and adjusts the flat ellipse glass
The glass viscosity of melt is 104.2-4.5dPa·s；The feeding system includes the platinum pipe for conveying glass melt, the platinum
For golden pipe along the curved pipe that glass melt flow direction is that gradual change is shunk, the platinum pipe discharge port is flat ellipse；
Fiber distribution system, for evenly distributing physics enhancing web or staple fiber in the flat ellipse glass
On melt；
Roll-in system, for the flat ellipse glass melt for being assigned web or staple fiber to be pressed into glass tape in advance；Institute
Stating roll-in system includes two rolls, and the surface temperature of the roll is 30-50 lower than the temperature of the flat ellipse glass melt
℃；
Cutting system forms glass tape to be pressed for cutting the glass tape；
Transmission system, for the glass tape to be pressed to be fallen into the former in transmission belt, and it is defeated by technique requirement progress
It send；
The heating system, for carrying out the adjusting of forming temperature system to the glass tape to be pressed and maintaining former not
Lower than glass viscosity 107.6Temperature corresponding to dPas；
Moulding system is formed for carrying out 3D compression molding to the glass tape to be pressed in the heating system by formpiston
3D hand-set lid protects chunk glass；
Pickup system, for taking out the 3D hand-set lid protection chunk glass.
As a further improvement of the present invention, the feeding system further includes feed basin and calandria；
The glass viscosity of glass melt is 10 in the feed basin3.5-3.8DPas, the platinum pipe will be in the feed basins
Glass melt is delivered in the roll-in system with flat ellipse glass melt；
The calandria is mounted on the outer wall of the platinum pipe, for adjusting the temperature and viscosity of the glass melt,
Make the glass viscosity 10 of the flat ellipse glass melt4.2-4.5dPa·s。
As a further improvement of the present invention, when using web, the fiber distribution system include web spool,
Guide roller and web, the web are wrapped on the web spool, evenly distribute under the action of the guide roller
On the flat ellipse glass melt；
The web includes but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, middle alkali glass
Glass fiber, copper metal fiber, stainless steel fibre and nickel chromium triangle fiber, the web of above-mentioned long fibre braiding, monfil diameter is not
Greater than 10 μm, bundle is not more than 200 μm, and metal-based fibers mesh is greater than 10mm, and inorganic base fiber mesh is 3-6mm.
As a further improvement of the present invention, when using staple fiber, the fiber distribution system include staple fiber warehouse,
Vibration sieve disperser and staple fiber, the staple fiber warehouse are stored for the staple fiber, and the vibration sieve disperser is for described short
Fiber dispersion and control fiber consumption；Staple fiber in the staple fiber warehouse is uniformly divided under the action of disperser is sieved in the vibration
It fits on the flat ellipse glass melt；
The staple fiber includes but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, middle alkali glass
Glass fiber, ceramic fibre, copper metal fiber, stainless steel fibre and nickel chromium triangle fiber, monfil diameter are not more than 10 μm, above-mentioned fibre
Dimension is by the processing that is chopped, fibre length 2-12mm.
As a further improvement of the present invention, the height of the platinum pipe discharge port is 3-10mm, width is hand-set lid
1.1-1.2 times for protecting glass length or width, the distribution width of the fiber distribution system are that hand-set lid protects glass long
1.1-1.2 times of degree or width, the spacing of two rolls are 1.2-2 times that hand-set lid protects thickness of glass.
As a further improvement of the present invention, the Transmission system includes driving wheel and the transmission belt；
The driving wheel drives the transmission belt movement, the driving speed of the driving wheel by sprocket engagement or gear engagement
It spends consistent with the speed beat of the moulding system.
As a further improvement of the present invention, the heating system includes heating furnace and torch；
The heating furnace includes the heating furnace body of relative closure, the heating furnace body interior receptacle transmission belt, described
Driving wheel and residue transmission band are exposed in heating furnace body both ends, and the heating furnace body upper space positioned inside heating rod is described to add
Upper temp is from glass viscosity 10 in hot stove body5Temperature corresponding to dPas is until glass viscosity 1011Temperature corresponding to dPas；
The torch is the burner that natural gas and oxygen form, and for preheating the former in the transmission belt, is made described
The surface temperature and internal temperature of former are increased to glass viscosity 104.5-5.5Temperature corresponding to dPas.
As a further improvement of the present invention, the moulding system includes cylinder, the formpiston and former；
The former is fixed on the external peripheral surface of the transmission belt, and 5-20mm is reserved between the two neighboring former
Spacing；The formpiston can be movable up and down by cylinder driving, when the former moves to the formpiston underface, the gas
Cylinder drives the formpiston to move downward, and squeezes the glass tape to be pressed and is filled between the former and formpiston, after being pressed into place,
The cylinder drives the formpiston to move upwards, and the glass tape to be pressed is pressed into the 3D hand-set lid protection glass fiber
Base.
As a further improvement of the present invention, further includes: protection gas system；
The protection gas system includes protection tracheae, and protection is passed through into the heating system by the protection tracheae
Gas excludes or consumes oxygen in the heating system, and the heating system is made to reach reducing atmosphere or neutral atmosphere.
The invention also discloses a kind of 3D compression molding of hand-set lid protection glass and fiber reinforcement methods, comprising:
Glass melt in step (1), feed basin forms flat ellipse glass melt after platinum pipe conveying；Wherein:
The glass viscosity of glass melt is 10 in the feed basin3.5-3.8DPas, the glass of the flat ellipse glass melt
Glass viscosity is 104.2-4.5DPas, the flat ellipse glass melt is that hand-set lid protects glass with a thickness of 3-10mm, width
1.1-1.2 times of glass length or width；
Step (2) evenly distributes physics enhancing web or staple fiber on the flat ellipse glass melt；
The flat ellipse glass melt for being assigned web or staple fiber is pressed into glass through two rolls by step (3) in advance
Band；Wherein:
The surface temperature of the roll is 30-50 DEG C lower than the temperature of the flat ellipse glass melt, between the roll
Away from 1.2-2 times for protecting thickness of glass for hand-set lid；
It is glass tape to be pressed that step (4), the glass tape, which are cut, and the glass tape to be pressed falls into the former in transmission belt
It is interior；
Step (5) carries out the adjusting of forming temperature system to glass tape to be pressed in the former, and maintains the former not low
In glass viscosity 107.6Temperature corresponding to dPas；
Step (6), when the former moves to immediately below formpiston, cylinder drives the formpiston to move downward, described in extruding
Glass tape to be pressed is filled between the former and formpiston, and after being pressed into place, the cylinder drives the formpiston to move upwards, institute
It states glass tape to be pressed and is pressed into 3D hand-set lid protection chunk glass；
Step (7) takes out the 3D hand-set lid protection chunk glass, is post-processed to obtain hand-set lid protection glass
Glass.
Compared with prior art, the invention has the benefit that
1), the single line odd-numbered day production quantity of relatively existing secondary hot bending shape only has more than 1000 parts, molding effect of the invention
Rate improves 7 times or more, and single line odd-numbered day production quantity is up to 8000 more than one piece；
2) relatively existing once molding formed, the present invention breaks through the once molding formed technique of ultrathin products, is substantially improved
Hand-set lid protects the 3D of glass to be pressed and molded surface quality, eliminates the surface 3D hand-set lid protection cold line of glass surface and cuts
Knife mark phenomenon；
3), fiber reinforcement significantly increases 3D cell phone rear cover glass sheet with once molding formed, and critical impulse is strong
Angle value concentration degree improves, and discreteness reduces.
Detailed description of the invention
Fig. 1 is that existing hand-set lid protects glass model figure；
Fig. 2 is that existing 3D cover board protects glass machining technique flow chart；
Fig. 3 is that existing 3D cover board protects glass bending moulding process principle and temperature schedule figure；
Fig. 4 is that existing glass melt is fed process flow chart；
Fig. 5 is existing glass melt punch forming process flow chart；
Fig. 6 is the cold line aspect graph of existing glass surface；
Fig. 7 is the remaining scissors mark figure of existing glass surface；
Fig. 8 is 3D compression molding and the fiber reinforcement device that hand-set lid disclosed in the embodiment of the present invention 1 protects glass
Structural schematic diagram；
Fig. 9 is 3D compression molding and the fiber reinforcement device that hand-set lid disclosed in the embodiment of the present invention 2 protects glass
Structural schematic diagram；
Figure 10 be an embodiment of the present invention disclosed in web enhancing, short fiber reinforced with without fibre-reinforced critical punching
Hit intensity result comparative diagram.
Detailed description of the invention:
In Fig. 5:
1, glass melt；2, mold；3, pressure head；4, glassware；5, bed die.
In Fig. 8:
1, feed basin；2, platinum pipe；3, calandria；4, discharge port；5, roll；6, glass tape；7, clipping apparatus；8, it heats
Furnace；9, cylinder；10, formpiston；11, glass tape to be pressed；12, former；13, tracheae is protected；14, vacuum pickup device；15,3D phone cover
Plate protects chunk glass；16, transmission belt；17, driving wheel；18, torch；19, support roller；20, web；21, web spool；
22, guide roller.
In Fig. 9:
1, feed basin；2, platinum pipe；3, calandria；4, discharge port；5, roll；6, glass tape；7, clipping apparatus；8, it heats
Furnace；9, cylinder；10, formpiston；11, glass tape to be pressed；12, former；13, tracheae is protected；14, vacuum pickup device；15,3D phone cover
Plate protects chunk glass；16, transmission belt；17, driving wheel；18, torch；19, support roller；20, staple fiber；21, staple fiber warehouse；
22, vibration sieve disperser.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
The present invention is described in further detail with reference to the accompanying drawing:
Embodiment 1:
As shown in figure 8, the 3D that the present invention provides a kind of hand-set lid protection glass is pressed and molded and fiber reinforcement device, packet
Include: feeding system, roll-in system, cuts system, Transmission system, heating system, moulding system, pickup system at fiber distribution system
System and protection gas system, feeding system, fiber distribution system, roll-in system, cutting system, heating system, moulding system and take
Part system process is closely connected, and front and back process can not overturn；Transmission system and protection gas system are to realize hand-set lid protection glass
The 3D of glass is pressed and molded auxiliary system, the speed of Transmission system and the molding rate for cutting the cutting rate of system, moulding system
It is consistent.It is specific:
The effect of feeding system of the invention are as follows: realize the conveying and glass temperature-viscosity regulatory function of glass melt；Its
In:
Feeding system of the invention includes feed basin 1, platinum pipe 2 and calandria 3, and feed basin 1 is for storing glass melt, feed basin
The glass viscosity of interior glass melt is 103.5-3.8dPa·s；Platinum pipe 2 is connected with feed basin 1, by the glass melt in feed basin with flat
Shape ellipse glass melt is delivered in roll-in system；Calandria 3 is mounted on the outer wall of platinum pipe 2, for adjusting glass melt
Temperature and viscosity, make the glass viscosity 10 of flat ellipse glass melt4.2-4.5dPa·s.Platinum pipe 2 is along glass melt stream
Dynamic direction is the curved pipe that gradual change is shunk, and platinum pipe discharge port 4 is flat ellipse, partial enlarged view as shown in Figure 8；Platinum
The thickness (height) of pipe discharge port 4 is 3-10mm, and width is 1.1-1.2 times of hand-set lid protection glass length or width dimensions
, 4 width of discharge port depend primarily on the hand-set lid in transmission belt 16 protection glass female mold 12 be it is horizontal (the mobile phone longitudinal axis with
It is vertical to transmit the direction of motion) or it is longitudinal (the mobile phone longitudinal axis is parallel with the transmission direction of motion), and recommending mobile phone cover board protects glass female mold
To be horizontal, the driving wheel diameter of transmission belt 16 can be minimized.
The effect of fiber distribution system of the invention are as follows: evenly distribute physics enhancing in flat ellipse glass with web
On melt, for 3D cell phone rear cover plate protection glass after molding, fiber will be located to be contacted with mobile phone device and battery etc.
Inside；Wherein:
Fiber distribution system (web distribution system) of the invention includes web spool 21, guide roller 22 and web
20, web spool 21 is stored for web 20, and guide roller 22 is combed and transmitted for web 20, transmission speed and glass
Glass band 6 is consistent；20 material of web include but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, in
Alkali containing glass fibre, copper metal fiber, stainless steel fibre, nickel chromium triangle fiber etc., the web of above-mentioned long fibre braiding, monfil are straight
Diameter is not more than 10 μm, and bundle is not more than 200 μm, and metal-based fibers mesh is greater than 10mm, and inorganic base fiber mesh is greater than
2mm, preferably 3-6mm, no matter inorganic base web or metal-based fibers net surface reduce organic binder and boundary to greatest extent
Face agent use, guarantee hot pressing when organic volatile and smoke conditions occur, be not only able to satisfy through the above way enhanced strength need but also
It is able to achieve mobile telephone microwave signal to receive and propagate, it is hand-set lid protection glass length or width dimensions that 20 width of web, which should be,
1.1-1.2 times, it is mainly related in 16 disposing way of transmission belt to former 12, by the glass melt discharge port of feeding system
Width is selected.
The effect of roll-in system of the invention are as follows: the flat ellipse glass melt for being assigned web or staple fiber is further
It is pressed into flat glass band 6 in advance；Wherein:
Roll-in system of the invention carries out roll-in flat using the roll 5 that two diameter 200-300mm are inwardly moved in opposite directions
Oval glass melt, two 5 positional relationships of roll are placement up and down, and 5 spacing of roll is hand-set lid protection glass actual (real) thickness
1.2-2 times, the material of roll 5 is commercialized heat-resistant steel, can be resistant to 1200-1420 DEG C；In order to prolong its service life and subtract
Few roll deformation can take water flowing inside roll cooling, but roller surface temperature must be ensured than glass viscosity 104.2- 4.5Temperature corresponding to dPas is 30-50 DEG C low, can reach roll-in purpose occur not only glass roll banding happen but also
Also 6 surface of glass tape is avoided cold line, the 6 surface relative smooth of glass tape after making roll-in occur.
The effect of cutting system of the invention are as follows: the glass tape 6 for cutting roll-forming forms glass tape 11 to be pressed；Wherein:
Cutting system of the invention includes support roller 19 and two panels clipping apparatus 7, and glass tape 6 is delivered to cutting dress by support roller 19
Set at 7, clipping apparatus 7 is made of the heating resisting metal with cutting edge, two panels clipping apparatus 7 carried out under the driving of cylinder it is opposite and
Reverse motions, similar scissors working principle；The operating frequency of clipping apparatus 7 depends on the compression molding speed of whole system, should
System recommendation cuts the period as 3-10S, and 24 hours cutting action frequencies are 8640-28800 times, that is, cuts and form 8640-28800
Piece glass tape 11 to be pressed.
The effect of heating system of the invention are as follows: carry out the adjusting of forming temperature system for glass tape 11 to be pressed, maintain wait press
11 temperature of glass tape is uniform, reduces 11 surface radiating of glass tape to be pressed, and former 12 is in addition made to maintain higher temperature, is not less than glass
Viscosity 107.6Temperature corresponding to dPas；Wherein:
Heating system of the invention includes heating furnace 8 and torch 18, and heating furnace 8 includes the heating furnace body of relative closure, is added
Driving wheel 17 and residue transmission band, heating furnace body top are exposed in hot furnace interior accommodating portion transmission belt 16, heating furnace body both ends
Space interior disposes calandria, and calandria recommends Si-Mo rod；Heating furnace body internal upper part temperature is from glass viscosity 105DPas institute is right
Temperature is answered until glass viscosity 1011Temperature corresponding to dPas.The burner of natural gas and oxygen composition can be used in torch 18, can
Think one or more, for preheating the former in transmission belt, so that the surface temperature of former and internal temperature is increased to glass glutinous
Degree 104.5-5.5Temperature corresponding to dPas, it is ensured that when pressing glass tape 11 to enter mould, 11 lower surface of glass tape to be pressed does not generate cold line
Be adhered.
The effect of Transmission system of the invention are as follows: glass tape 11 to be pressed is fallen into the former 12 in transmission belt 16, and is made
Former 12 is moved by technique requirement, with 10 exactitude position of formpiston；Wherein:
Transmission system of the invention includes driving wheel 17 and transmission belt 16, and driving wheel 17 is to provide driving for transmission belt 16
Power takes sprocket engagement or gear to engage between driving wheel 17 and transmission belt 16, driving speed and hand-set lid protect glass
It is consistent that 3D is pressed and molded whole system speed beat.Driving wheel 17, all materials of transmission belt 16 are heat proof material, heat-resisting temperature
Degree requires to be preferred up to 1100-1400 DEG C.
The effect of moulding system of the invention are as follows: realize the 3D compression molding of hand-set lid protection glass；Wherein:
Moulding system of the invention includes former 12, cylinder 9 and formpiston 10, and former 12 is fixed on 16 outer circle weekly form of transmission belt
On face, 5-20mm spacing is reserved between former 12, and recommends former 12 longitudinal (the as longitudinal direction of hand-set lid glass) and transmission
Direction is vertical, creates conditions for 16 radius of gyration of transmission belt, driving wheel minimum；Formpiston 10 can be transported up and down by the driving of cylinder 9
Dynamic, when former 12 moves to immediately below formpiston 10, and cylinder 9 drives 10 sharp downward movement of formpiston, formpiston 10 squeezes glass to be pressed
Glass band 11 makes between 11 squeeze pack former 12 of glass tape and formpiston 10 to be pressed, and extra glass tape is extruded to mold surrounding, squeezes
After being pressed onto position, cylinder 9 drives formpiston 10 to move upwards, by the downtrodden 3D mobile phone of 3D morphological constraints glass tape 11 to be pressed of mold
Cover board protects chunk glass.Former 12, all materials of formpiston 10 are heat proof material, and heat resisting temperature is preferred up to 1100-1400 DEG C,
Mold surface finish and oxidation resistance are the important leverages on 3D hand-set lid protection chunk glass surface.
The effect of pickup system of the invention are as follows: 3D hand-set lid protection chunk glass 15 is removed into former 12；Pickup system
System uses small-sized heat resisting vacuum pickup device 14, and vacuum pickup device 14 generates adsorption by negative pressure of vacuum.
The effect of protection gas system of the invention are as follows: prevent mold and metalwork from aoxidizing；Protect gas system mainly by protecting
One or more of nitrogen, argon gas and hydrogen that tracheae 13 is passed through into heating furnace 8 gaseous mixture excludes or consumes oxygen in furnace
Gas makes to reach reducing atmosphere or neutral atmosphere in furnace；It is heating furnace upper end that protection gas, which is passed through position, and air-flow is by heating furnace end
End flows to front end (i.e. glass tape inlet).
Embodiment 2:
As shown in figure 9, embodiment 2 and the difference of embodiment 1 are only that:
The effect of fiber distribution system in embodiment 2 are as follows: evenly distribute physics enhancing in flat ellipse glass with staple fiber
On glass melt, for 3D cell phone rear cover plate protection glass after molding, fiber will be located to be connect with mobile phone device and battery etc.
The inside of touching；Wherein:
Fiber distribution system (staple fiber distribution system) of the invention includes including staple fiber warehouse 21, vibration sieve disperser 22
With staple fiber 20, staple fiber warehouse 21 is stored for staple fiber 20, and vibration sieve disperser 22 disperses for staple fiber 20 and controls fine
Wesy's amount；Staple fiber 20 in staple fiber warehouse 31 evenly distributes molten in flat ellipse glass under the action of disperser 22 are sieved in vibration
On body.Staple fiber includes but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, middle alkali glass fiber
Dimension, ceramic fibre, copper metal fiber, stainless steel fibre, nickel chromium triangle fiber etc., monfil diameter are not more than 10 μm, above-mentioned fiber
Through being chopped processing, fibre length 2-12mm, optimum range 3-5mm, fiber surface reduce to greatest extent organic binder and
Interfacial agents use, and avoid hot pressing from smoldering and volatilize generation, are unfavorable for fiber and glass interface intensity.
The present invention provides the 3D compression molding and fiber reinforcement method of a kind of hand-set lid protection glass, firstly, feed system
System tentatively gives glass melt to flat ellipse；Secondly, physics, which enhances system, is distributed in flat ellipse for web or staple fiber
Glass melt upper surface；Furthermore web or staple fiber and flat ellipse glass melt are rolled into foliated glass by roll-in system
Band；After again, the glass tape of surface recombination fiber is pressed and molded and protects glass for 3D cell phone rear cover plate by moulding system.
It specifically includes:
Glass melt in step (1), feed basin forms flat ellipse glass melt after platinum pipe conveying；Wherein:
The glass viscosity of glass melt is 10 in feed basin3.5-3.8The glass viscosity of dPas, flat ellipse glass melt is
104.2-4.5DPas, flat ellipse glass melt is that hand-set lid protects glass length or width with a thickness of 3-10mm, width
1.1-1.2 times；
Step (2) evenly distributes physics enhancing web or staple fiber on flat ellipse glass melt；
The flat ellipse glass melt for being assigned web or staple fiber is pressed into glass through two rolls by step (3) in advance
Band；Wherein:
The surface temperature of roll is 30-50 DEG C lower than the temperature of flat ellipse glass melt, and the spacing of roll is hand-set lid
1.2-2 times for protecting thickness of glass；
It is glass tape to be pressed that step (4), glass tape, which are cut, and glass tape to be pressed is fallen into the former in transmission belt；
Step (5) carries out the adjusting of forming temperature system to glass tape to be pressed in former, and maintains former glutinous not less than glass
Degree 107.6Temperature corresponding to dPas；
Step (6), when former moves to immediately below formpiston, cylinder driving formpiston moves downward, and squeezes glass tape to be pressed and fills
It fills out between former and formpiston, after being pressed into place, cylinder driving formpiston is moved upwards, and glass tape to be pressed is pressed into 3D phone cover
Plate protects chunk glass；
Step (7) takes out 3D hand-set lid and protects chunk glass, and the post-processing that polish etc. obtains hand-set lid protection glass
Glass.
The present invention can the 3D hand-set lid of production specification 5-7 inch protect glass, while also can according to need and extending downwardly
Product is dressed to the 0.5 other appropriate products of inch specification, such as electronics；It upwardly extends and produces 18 inch specifications, such as automobile touch screen,
The electronic window etc. of instrument appliance.
The present invention is by protecting glass 3D compression molding to carry out effectively compound, fiber point with fiber reinforcement cell phone rear cover plate
Match system is between feeding system and roll-in system；Not only the protection glass 3D compression molding of cell phone rear cover plate had been solved the problems, such as, but also
It solves cell phone rear cover plate and protects glass drop resistant strength problem.
Using the glass of Chinese patent ZL200810147442.3 form and chemical strengthening method in embodiment 2 as assessment
Comparison other, selects appropriate glass raw material to calculate glass formula by glass chemistry composition, glass is melted in pilot plant, by this
Experimental provision is built in invention, and a portion glass melt is pressed process system parameter, is made without fibre-reinforced 3D mobile phone
Back shroud protects 100, glass, and a portion glass melt is pressed process system parameter, the 3D hand that manufacture has web to enhance
Machine back shroud protects 100, glass and the 3D cell phone rear cover plate of web of staple fibers enhancing to protect 100, glass.
The said goods thickness is 0.70+0.03mm, specification 150mm (length) × 71mm (width) × 6mm (camber), corner
135 °, by the protection chunk glass periphery glass removal of 3D cell phone rear cover plate, glass specimen no longer carries out other surfaces and punching adds
Work.By one-step method chemical strengthening technique, potassium nitrate temperature of molten salt is 460 DEG C, enhanced time 6h, glass specimen after chemical strengthening
Clean to be measured, by purchase Chinese Patent Application No. 201821986214.0, " a kind of impact of screen protection glass transition is damaged
The instrument and method of energy meter " carry out, and Charpy impact position is that cell phone rear cover plate protects glass appearance surface center position, base
This falls that stress situation is consistent, and measurement result is joule (J) with mobile phone, is shown in Table shown in 1 and Figure 10.
Table 1
From the point of view of measurement result average value, the impact strength > of the impact strength > short fiber reinforced of web enhancing is without fibre
Dimension enhancing (patent comparative example), fibre-reinforced impact strength are strong relative to the shock resistance of no fiber reinforcement (patent comparative example)
Degree promotes 27.7%-41.7%, and for impact mechanical performance, this has made much progress, and strong by impact
From the point of view of degree distribution, the impact strength distribution concentration degree and convergence of web enhancing " are better than " impact strength point of short fiber reinforced
Cloth concentration degree and convergence " being better than " impact strength distribution concentration degree and convergence without fiber reinforcement (patent comparative example).
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. 3D compression molding and the fiber reinforcement device of a kind of hand-set lid protection glass, which is characterized in that successively include:
Feeding system for glass melt to be fed with flat ellipse glass melt, and adjusts the flat ellipse glass melt
Glass viscosity be 104.2-4.5dPa·s；The feeding system includes the platinum pipe for conveying glass melt, the platinum pipe
It is the curved pipe that gradual change is shunk along glass melt flow direction, the platinum pipe discharge port is flat ellipse；
Fiber distribution system, for evenly distributing physics enhancing web or staple fiber in the flat ellipse glass melt
On；
Roll-in system, for the flat ellipse glass melt for being assigned web or staple fiber to be pressed into glass tape in advance；The roller
Pressure system includes two rolls, and the surface temperature of the roll is 30-50 DEG C lower than the temperature of the flat ellipse glass melt；
Cutting system forms glass tape to be pressed for cutting the glass tape；
Transmission system for falling into the glass tape to be pressed in the former in transmission belt, and is conveyed by technique requirement；
The heating system, for carrying out the adjusting of forming temperature system to the glass tape to be pressed and being not less than former maintenance
Glass viscosity 107.6Temperature corresponding to dPas；
Moulding system forms 3D hand for carrying out 3D compression molding to the glass tape to be pressed in the heating system by formpiston
Cover plate protects chunk glass；
Pickup system, for taking out the 3D hand-set lid protection chunk glass.
2. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
The feeding system further includes feed basin and calandria；
The glass viscosity of glass melt is 10 in the feed basin3.5-3.8DPas, the platinum pipe melt the glass in the feed basin
Body is delivered in the roll-in system with flat ellipse glass melt；
The calandria is mounted on the outer wall of the platinum pipe, for adjusting the temperature and viscosity of the glass melt, makes institute
The glass viscosity for stating flat ellipse glass melt is 104.2-4.5dPa·s。
3. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
When using web, the fiber distribution system includes web spool, guide roller and web, and the web is wrapped in
On the web spool, evenly distributed under the action of the guide roller on the flat ellipse glass melt；
The web includes but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, middle alkali glass fiber
Dimension, copper metal fiber, stainless steel fibre and nickel chromium triangle fiber, the web of above-mentioned long fibre braiding, monfil diameter are not more than
10 μm, bundle is not more than 200 μm, and metal-based fibers mesh is greater than 10mm, and inorganic base fiber mesh is 3-6mm.
4. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
When using staple fiber, the fiber distribution system includes staple fiber warehouse, vibration sieve disperser and staple fiber, the staple fiber storage
Storehouse is stored for the staple fiber, and the vibration sieve disperser disperses for the staple fiber and control fiber consumption；The short fibre
Staple fiber in dimension warehouse evenly distributes on the flat ellipse glass melt under the action of disperser is sieved in the vibration；
The staple fiber includes but is not limited to carbon fiber, quartz fibre, high silica fiber, alkali-free glass fibre, middle alkali glass fiber
Dimension, ceramic fibre, copper metal fiber, stainless steel fibre and nickel chromium triangle fiber, monfil diameter are not more than 10 μm, above-mentioned fiber warp
Cross the processing that is chopped, fibre length 2-12mm.
5. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
The height of the platinum pipe discharge port is 3-10mm, width is hand-set lid protection glass length or width 1.1-1.2 times, institute
The distribution width for stating fiber distribution system is 1.1-1.2 times of hand-set lid protection glass length or width, two rolls
Spacing be that hand-set lid protects 1.2-2 times of thickness of glass.
6. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
The Transmission system includes driving wheel and the transmission belt；
The driving wheel drives transmission belt movement by sprocket engagement or gear engagement, the driving speed of the driving wheel with
The speed beat of the moulding system is consistent.
7. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as claimed in claim 6, which is characterized in that
The heating system includes heating furnace and torch；
The heating furnace includes the heating furnace body of relative closure, the heating furnace body interior receptacle transmission belt, the heating
Expose driving wheel and residue transmission band, the heating furnace body upper space positioned inside heating rod, the heating furnace in furnace body both ends
Internal upper temp is from glass viscosity 105Temperature corresponding to dPas is until glass viscosity 1011Temperature corresponding to dPas；
The torch is that the burner that natural gas and oxygen form makes the former for preheating the former in the transmission belt
Surface temperature and internal temperature be increased to glass viscosity 104.5-5.5Temperature corresponding to dPas.
8. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as claimed in claim 7, which is characterized in that
The moulding system includes cylinder, the formpiston and former；
The former is fixed on the external peripheral surface of the transmission belt, between the two neighboring former between reserved 5-20mm
Away from；The formpiston can be movable up and down by cylinder driving, when the former moves to the formpiston underface, the cylinder
It drives the formpiston to move downward, squeezes the glass tape to be pressed and be filled between the former and formpiston, after being pressed into place, institute
Stating cylinder drives the formpiston to move upwards, and the glass tape to be pressed is pressed into the 3D hand-set lid protection chunk glass.
9. 3D compression molding and the fiber reinforcement device of hand-set lid protection glass as described in claim 1, which is characterized in that
Further include: protection gas system；
The protection gas system includes protection tracheae, and protection gas is passed through into the heating system by the protection tracheae, is arranged
Oxygen in the heating system is removed or consumed, the heating system is made to reach reducing atmosphere or neutral atmosphere.
10. the 3D compression molding and fiber reinforcement method of a kind of hand-set lid protection glass, which is characterized in that application such as right is wanted
Ask 3D compression molding and the fiber reinforcement device of the protection glass of hand-set lid described in any one of 1-9, comprising:
Glass melt in step (1), feed basin forms flat ellipse glass melt after platinum pipe conveying；Wherein:
The glass viscosity of glass melt is 10 in the feed basin3.5-3.8DPas, the glass viscosity of the flat ellipse glass melt
It is 104.2-4.5DPas, the flat ellipse glass melt is that hand-set lid protects glass length with a thickness of 3-10mm, width
Or 1.1-1.2 times of width；
Step (2) evenly distributes physics enhancing web or staple fiber on the flat ellipse glass melt；
The flat ellipse glass melt for being assigned web or staple fiber is pressed into glass tape through two rolls by step (3) in advance；Its
In:
The surface temperature of the roll is 30-50 DEG C lower than the temperature of the flat ellipse glass melt, and the spacing of the roll is
Hand-set lid protects 1.2-2 times of thickness of glass；
It is glass tape to be pressed that step (4), the glass tape, which are cut, and the glass tape to be pressed is fallen into the former in transmission belt；
Step (5) carries out the adjusting of forming temperature system to glass tape to be pressed in the former, and maintains the former not less than glass
Glass viscosity 107.6Temperature corresponding to dPas；
Step (6), when the former moves to immediately below formpiston, cylinder drives the formpiston to move downward, and squeezes described wait press
Glass tape is filled between the former and formpiston, and after being pressed into place, the cylinder drives the formpiston to move upwards, it is described to
Pressure glass tape is pressed into 3D hand-set lid protection chunk glass；
Step (7) takes out the 3D hand-set lid protection chunk glass, is post-processed to obtain hand-set lid protection glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100286.3A CN109694179A (en) | 2019-01-31 | 2019-01-31 | Hand-set lid protects the 3D compression molding and fiber reinforcement device and method of glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100286.3A CN109694179A (en) | 2019-01-31 | 2019-01-31 | Hand-set lid protects the 3D compression molding and fiber reinforcement device and method of glass |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272651A (en) * | 1968-05-16 | 1972-05-03 | Atomic Energy Authority Uk | Improvements in or relating to composite materials |
| CN1041342A (en) * | 1988-09-28 | 1990-04-18 | 詹姆斯·阿瑟·艾伯特·希克曼 | Wired glass |
| CN2568648Y (en) * | 2002-08-05 | 2003-08-27 | 李世卿 | One step forming processing system for curve glass ware |
| CN101481202A (en) * | 2008-01-07 | 2009-07-15 | 梁银生 | On-line production method of glass plate product |
-
2019
- 2019-01-31 CN CN201910100286.3A patent/CN109694179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272651A (en) * | 1968-05-16 | 1972-05-03 | Atomic Energy Authority Uk | Improvements in or relating to composite materials |
| CN1041342A (en) * | 1988-09-28 | 1990-04-18 | 詹姆斯·阿瑟·艾伯特·希克曼 | Wired glass |
| CN2568648Y (en) * | 2002-08-05 | 2003-08-27 | 李世卿 | One step forming processing system for curve glass ware |
| CN101481202A (en) * | 2008-01-07 | 2009-07-15 | 梁银生 | On-line production method of glass plate product |
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