A kind of preparation technology of the curved laminated glass of Low-e
The present invention relates to a kind of manufacture craft of safety glass, the preparation technology of the curved laminated glass of more particularly, to Low-e.
Background technology
Doubling glass is laminated glass, is to have pressed from both sides one layer or multilayer organic polymer between two panels or divided glass
Intermediate coat, after special high temperature preheating (or vacuumizing) and high-temperature high-pressure craft are processed, makes glass and intermediate coat permanent
Bond the compound glass product being integrated.Common laminated glass intermediate coat has PVB, SGP, EVA, PU etc..Laminated glass is one
Plant safety glass, there is good impact resistance, penetration resistance, security, noise reduction, anti-uv etc..With the epoch
Development, laminated glass is widely used in building doors and windows, lighting ceiling, skylight, furred ceiling, large-area glass with its unique property
The occasion of nearly all use such as body of wall, glass furniture, show window, aquarium glass.
Curved steel glass has the security performance the same with safety glass and high intensity it is often more important that it can meet the modern times builds
Build the requirements at the higher level to works for the designer.It is smooth streamlined, realizes complete to the glass curtain wall of cambered surface moulding from flat curtain
Beautiful transition, makes that glass-wall building is more attractive, more round and smooth smooth, naturally good associative perception.Curved tempered glass is in conduct
Indoor arc cut-off, interior decoration make work domestic environment more peculiar.
Disclose the manufacture craft of multiple curved tempered glasses in prior art, its typical process flow be upper piece, heating, heat
Roll forming, chilling tempering, cooling and bottom sheet.Adopt air cooling way to cool down glass in traditional safety glass technical process, need
There is provided in short time the bending strength that the air of big flow, very power consumption, and this mode of production can not effectively improve glass,
Impact strength, exterior quality etc..Chinese patent publication date is 2015.1.21, and publication number is that 104291666A discloses one kind
Bending strength, tensile strength, impact strength can be obtained all higher, and excellent, time-saving energy-saving the curved tempering glass of exterior quality
Glass production technology.For further saving energy consumption, produce that bending strength is higher, tensile strength, impact strength are all preferable
Curved steel glass, and its curved steel glass system is made for interlayer curved steel glass.We have done to prior art and have further improved.
Content of the invention
It is an object of the invention to overcoming deficiency of the prior art, provide that a kind of exterior quality is excellent, bending strength, anti-
The preparation technology of the curved laminated glass of all higher Low-e of Compressive Strength, impact strength.
For solving above-mentioned technical problem, the technical scheme is that:
A kind of preparation technology of the curved laminated glass of Low-e, described production technology comprises the steps:
A, glass big plate substrate will be cut, become Low-e glass substrate, then Low-e glass substrate will adopt horizontal
Double straight flange machines are carried out edging, are carried out subsequently into cleaning machine by Timing Belt;
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent in convection tempering furnace by roller-way and carry out at heating
Reason, makes glass close to softening point, and it uses one-part form heating, and the thickness range of glass is 5mm~12mm, and heating-up temperature is
Between 675 DEG C -690 DEG C, between 675 DEG C -700 DEG C, the heat time is 45s~65s to temperature of lower scope to upper temp, front
The phase sway velocity of main stove is:60~120/s;
C, the curved air grid of feeding that the glass after above-mentioned heating is come out of the stove, first curved with the bending of rollgang and air grid by conducting oneself with dignity
Song, then by the upper and lower air grid in curved air grid under the blast of 1.0kpa-3.0kpa, quenching 80s-120s is to glass table
250 DEG C -300 DEG C of face, then 15 DEG C of -30 DEG C of water-cooled process to normal temperature, obtain final product curved tempered glass finished product;
D, the curved steel glass finished-product in step c is carried out again, the two panels through over cleaning or multi-disc curved steel glass are dustless
Close close out sheet room carries out closing piece making;PVB film is adopted as intermediate medium, laminated glass between two panels Low-e curved steel glass
Thickness range be 40mm~60mm, in 20 DEG C ± 5 DEG C of temperature control, relative humidity controls 20%-40%, area's temperature range
For 160 DEG C~170 DEG C, two area's temperature ranges are 200 DEG C~220 DEG C, and three area's temperature ranges are 220 DEG C~240 DEG C, transmission speed
For 0.5m~1.5m/min, using heating tube heating, medium is air compressed gas to still kettle, and balance temperature is 135 ± 5 DEG C,
Balance pressure 12 ± 0.5kg, equilibration time 35-45min, the conjunction piece of the curved laminated glass of prepared Low-e;
E, again by step d laminated glass enter roll squeezer bubble removing, specifically laminated glass pass through slide rail entrance bent plate glass
Glass roll squeezer first interval heater box is heated, and its heating-up temperature is 50 DEG C -60 DEG C, then enters into second interval by slide rail
Heater box is heated, and heating-up temperature is 100 DEG C -200 DEG C, melts PVB film;
F, by step e through reheating bent plate glass slowly by the 3rd interval heater box of bent plate glass rolling machine
Heated, one end of the curved laminated glass of Low-e is passed through tiltedly to slide the space between roller and water flat roll, along curved steel tangent line simultaneously
Direction is slowly sent into roll squeezer and is removed bubble removing, sends after roll-in, prepared appearance looks elegant, tensile strength height, bending strength, anti-impact
The curved laminated glass of all higher Low-e of hit intensity.
Further, the water conductivity that in described a edging operation, water quality adopts is less than 5us/cm deionized water.
Further, the heating-up temperature of the 3rd interval heater box in described step e is 50 DEG C -70 DEG C.
Further, the seal temperature of described PVB glue is 120 DEG C~140 DEG C.
Further, the arc length radius of the curved tempered glass in described step c is more than 300mm.
Beneficial effects of the present invention:Two-period form heating traditional for annealing furnace has been transformed into one-part form heating by this kind of technique,
Heating and temperature control, between 675 DEG C -690 DEG C, makes glass fully be softened, and the Low-e glass after softening is re-fed into curved
Air grid, the Low-e obtaining curved steel glass bending radius is big, and its tensile strength, bending strength, impact strength all correspondingly carry
High.And traditional technique cannot realize the making of the curved laminated glass of Low-e, the present invention is carried out in conjunction piece room using suitable technique
Close piece, then carry out bubble removing through roll squeezer it is achieved that the making of the curved laminated glass of Low-e, and the surface strength produced high and
Good looking appearance, glass transparent.
Specific embodiment
The invention is further illustrated by the following examples, but the present invention is not limited solely to following examples.
Embodiment one
A kind of preparation technology of the curved laminated glass of Low-e, described production technology comprises the steps:
A, glass big plate substrate will be cut, become Low-e glass substrate, then Low-e glass substrate will adopt horizontal
Double straight flange machines are carried out edging, are carried out subsequently into cleaning machine by Timing Belt, and the water power that in edging operation, water quality adopts is led
Rate is less than 5us/cm deionized water;
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent in convection tempering furnace by roller-way and carry out at heating
Reason, makes glass close to softening point, and it uses one-part form heating, and the thickness range of glass is 5mm~6mm, and heating-up temperature is
Between 685 DEG C -690 DEG C, between 695 DEG C -700 DEG C, the heat time is 45s to temperature of lower scope to upper temp, early stage master
The sway velocity of stove is:80/s;
C, the curved air grid of feeding that the glass after above-mentioned heating is come out of the stove, first curved with the bending of rollgang and air grid by conducting oneself with dignity
Song, then by the blast of the upper air grid in curved air grid be 2.0kpa, lower air grid under the blast of 2.0kpa, quenching 90s is extremely
250 DEG C -300 DEG C of glass surface, then 25 DEG C of water-cooled process to normal temperature, obtain final product curved tempered glass finished product, the arc length of curved steel glass
Radius is 320mm;
D, the curved steel glass finished-product in step c is carried out again, the two panels through over cleaning or multi-disc curved steel glass are dustless
Close close out sheet room carries out closing piece making;Adopt PVB film between two panels Low-e curved steel glass as intermediate medium, PVB glue soft
Changing the thickness range that temperature is 120 DEG C of laminated glass is 50mm, and in 15 DEG C of temperature control, relative humidity controls 30%, area's temperature
Degree scope is 165 DEG C, and two area's temperature ranges are 210 DEG C, and three area's temperature ranges are 200 DEG C, and transmission speed is 0.5m/min, steam pressure
Kettle adopts heating tube to heat, and medium is air compressed gas, and balance temperature is 135 DEG C, balances pressure 12kg, equilibration time
The conjunction piece of the curved laminated glass of 45min, prepared Low-e;
E, again by step d laminated glass enter roll squeezer bubble removing, specifically laminated glass pass through slide rail entrance bent plate glass
Glass roll squeezer first interval heater box is heated, and its heating-up temperature is 50 DEG C, then enters into second interval heating by slide rail
Case is heated, and heating-up temperature is 150 DEG C, melts PVB film;
F, by step e through reheating bent plate glass slowly by the 3rd interval heater box of bent plate glass rolling machine
Heated, the heating-up temperature of 3rd interval heater box is 70 DEG C, one end of curved steel glass is passed through tiltedly to slide roller and level is slided simultaneously
Space between roller, slowly sends into roll squeezer along curved steel tangential direction and removes bubble removing, send after roll-in, and prepared outward appearance is beautiful
The all higher curved laminated glass of Low-e of sight, tensile strength height, bending strength, impact strength.
Embodiment two
A kind of preparation technology of the curved laminated glass of Low-e, described production technology comprises the steps:
A, glass big plate substrate will be cut, become Low-e glass substrate, then Low-e glass substrate will adopt horizontal
Double straight flange machines are carried out edging, are carried out subsequently into cleaning machine by Timing Belt, and the water power that in edging operation, water quality adopts is led
Rate is less than 5us/cm deionized water;
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent in convection tempering furnace by roller-way and carry out at heating
Reason, makes glass close to softening point, and it uses one-part form heating, and the thickness range of glass is 8mm~12mm, and heating-up temperature is
Between 675 DEG C -685 DEG C, between 675 DEG C -685 DEG C, the heat time is 50s to temperature of lower scope to upper temp, early stage master
The sway velocity of stove is:100/s;
C, the curved air grid of feeding that the glass after above-mentioned heating is come out of the stove, first curved with the bending of rollgang and air grid by conducting oneself with dignity
Song, then by the blast of the upper air grid in curved air grid be 1.5.0kpa, lower air grid under the blast of 3.0kpa, quenching 100s
To 250 DEG C -300 DEG C of glass surface, then 30 DEG C of water-cooled process, to normal temperature, obtain final product curved tempered glass finished product, the arc of curved steel glass
Major radius is 350mm;
D, the curved steel glass finished-product in step c is carried out again, the two panels through over cleaning or multi-disc curved steel glass are dustless
Close close out sheet room carries out closing piece making;Adopt PVB film between two panels Low-e curved steel glass as intermediate medium, PVB glue soft
Changing the thickness range that temperature is 135 DEG C of laminated glass is 65mm, and in 20 DEG C of temperature control, relative humidity controls 50%, area's temperature
Degree scope is 160 DEG C, and two area's temperature ranges are 200 DEG C, and three area's temperature ranges are 100 DEG C, and transmission speed is 1.0m/min, steam pressure
Kettle adopts heating tube to heat, medium air compressed gas, and balance temperature is 130 DEG C, balances pressure 12.5kg, equilibration time
The conjunction piece of the curved laminated glass of 40min, prepared Low-e;
E, again by step d laminated glass enter roll squeezer bubble removing, specifically laminated glass pass through slide rail entrance bent plate glass
Glass roll squeezer first interval heater box is heated, and its heating-up temperature is 50 DEG C, then enters into second interval heating by slide rail
Case is heated, and heating-up temperature is 150 DEG C, melts PVB film;
F, by step e through reheating bent plate glass slowly by the 3rd interval heater box of bent plate glass rolling machine
Heated, the heating-up temperature of 3rd interval heater box is 60 DEG C, one end of curved steel glass is passed through tiltedly to slide roller and level is slided simultaneously
Space between roller, slowly sends into roll squeezer along curved steel tangential direction and removes bubble removing, send after roll-in, and prepared outward appearance is beautiful
The all higher curved laminated glass of Low-e of sight, tensile strength height, bending strength, impact strength.
Two-period form heating traditional for annealing furnace has been transformed into one-part form heating by this invented technology, and heating and temperature control exists
Between 675 DEG C -690 DEG C, glass is made fully to be softened, the glass after softening is re-fed into curved air grid, the curved steel glass obtaining
Its tensile strength, bending strength, impact strength all correspondingly improve.And traditional technique cannot realize curved steel laminated glass
Make, the present invention using suitable technique close piece room carry out close piece, then carry out bubble removing through roll squeezer it is achieved that making,
And the Low-e angle coupling layer glass surface intensity produced is high and good looking appearance, glass is penetrating.
Listed above is only the specific embodiment of the present invention.It is clear that the invention is not restricted to above example is sub, acceptable
There are many deformation.All changes that those of ordinary skill in the art can directly derive or associate from present disclosure
Shape, is all considered as protection scope of the present invention.