The combination process of metal covering and wood skin
Technical field
The present invention relates to a kind of ornament materials combination process, and in particular to the combination process of a kind of metal covering and wood skin.
Background technology
With the development of society, people appreciate taste and tend to variation, and some people is more likely to the life of country's breath
Environment living, therefore one kind is more embodied using the finishing material of more woodiness touch on the finishing of room or workplace
Come from naturally warmth style.But in a large number such finishing is carried out using timber, then it is to damage forest land as cost.It is another
Aspect, the finishing material one processed using pure wood raw material primary disadvantage is that the timber price of anticorrosive anti-wear is expensive,
And resource-constrained, and common timber then anticorrosive anti-wear performance is poor, service life is short, once grain it is rotten once must change.
Chinese patent literature CN1475374A discloses " a kind of metallic door, case, the wood skin decoration technology on cabinet surface ", the work
Skill is various doors, case, the cabinet done for metal, and the decoration on its surface is processed, and using techniques such as spray painting and plastic-blastings and adopts plastics
The imitative woodgrained paper barbola work that broad film is printed so that surface grain pattern, color and natural sense, the sense of reality are all poor to ask
Topic.Propose following manufacture craft:First, applying antirusting paint to the metal surface of metalwork carries out antirust treatment.Then, according to
The dimensional requirement of metalwork, wood skin corresponding specification is cut into.Wood skin is cut into after specification material, then it is pasted onto specification phase
On same bed course.Wood skin and bed course are pasted, after glue is dry, so that it may paste on the metal surface.In taping process, wood skin will put down
It is whole tight, bubble presence is not allow for, sticking glue is double-component white glue with vinyl.However, the technique not only continuous production capacity is poor
Outward, using the antirusting paint antirust treatment to metal surface, the antirusting paint between bonding agent and metal covering is deposited in bonding
Also act as bad effect.
To overcome the defect of above-mentioned prior art, Chinese patent literature CN101323195A to disclose a kind of wood skin and metal
Surface combination technology, Treatment of Metal Surface therein employs emery cloth and is polished, with acetone soln to the metal watch after polishing
Face is processed, and uses hot blast drying Rough Metal Surface, and adhesive adopts LK-140 aqueous, environmental protective glue.But LK-140 is aqueous
Environment-friendlyadhesive adhesive is still primarily adapted for use in the bonding agent between wood materials, and from unlike wood surface, metal covering does not have viscous
Agent penetrating power is connect, causes cementability of the common glue on metal poor.It is on the other hand, low using emery cloth grinding efficiency,
And the lack of homogeneity polished also is unfavorable for the uniform bonding of bonding agent.
At present, in the technique of metal surface note wood skin, as disclosed in Chinese patent literature CN101769116A, mainly adopt
Phosphatization is carried out to metal covering with immersion phosphating pond, to remove grease and iron rust and other impurities, by metal surface before gluing
Grinding process is carried out, to increase adhesive force of the overlay glue to it;And adhesive adopts PUR.In fact, the purpose master of phosphatization
If:Protection is provided to parent metal, prevents metal to be corroded to a certain extent;For front bottoming of painting, paint film layer is improved
Adhesive force and anti-corrosion capability.However, the prior art carries out grinding process before gluing to metal surface, will be to phosphatization at
The protective layer of the formed enhancing adhesive force of reason and anti-corrosion capability is destroyed.Therefore, in the prior art at phosphatization
Reason is only into going deimpurity operation.At present in the technique of common metal covering patch wood skin, after phosphorating treatment operation, or profit
The protective layer for strengthening adhesive force and anti-corrosion capability formed with phosphorating treatment, but its adhesive ability is relatively poor.
However, clearing up wiping using modes such as organic solvent, acid washing phosphorizations, contaminant water and pollutant are produced, environment is made
Into pollution.For this purpose, Chinese patent literature CN105666989A proposes one kind plants wooden metal finishing board production technology, wherein metal
Surface treatment adopts Surface Treatment with Plasma technique, the technique using special gas by special equipment, produce electrification in high voltage from
Son, sprays metal surface, makes the impurity such as pollutant and rusty stain be crashed to pieces cracking, at the same reach metal surface produce it is miniature
Convex-concave surface, the faying face and affinity of increase adhesive and metallic plate electrically charged using metal surface molecule, increase and combine by force
Degree.From common knowledge, by cold-plasma surfaces treated, there are various physics, chemical changes in material surface, or
Produce etching and coarse, or form fine and close cross-linked layer, or introduce oxygen-containing polar group, make hydrophily, caking property, can dye
Property, biocompatibility and electrical property respectively obtain improvement.For different processed materials, set using different gas and injection
It is standby to produce different results, and simply show in Chinese patent literature CN105666989A and " adopt special gas
By special equipment ", specifically using those special gas and special equipment, without further instruction.Therefore, in the document only
A conception of species is only gived, one of ordinary skill in the art without not according to implemented by its disclosed information.
Sandblasting is to adopt compressed air for power, with formed high velocity spray beam by material spray (copper ore, quartz sand, diamond dust,
Iron sand, sea sand) it is ejected into need to process surface of the work at a high speed, the appearance or shape for making surface of the work changes.Due to abrasive material pair
The impact and shear action of surface of the work, the surface for making workpiece obtains certain cleannes and different roughness, makes workpiece table
The mechanical performance in face is improved, therefore improves the fatigue resistance of workpiece, increased its adhesive force and coating between, is extended
The durability of film, is also beneficial to the levelling and decoration of coating.However, decorating and renovating material is typically with metallic plate conduct
Substrate, and the shortcoming of sandblasting to be impact of the grains of sand of its at a high speed injection to such metallic plate be easily deformed, it is and then right
Follow-up wood skin adhesive band carrys out detrimental effect.
The content of the invention
Present invention seek to address that the water pollution problems that produces of metal surface composite veneer technique and compound sticking asking loosely
Topic, proposes one kind firm combination process of compound sticking while water pollution is not produced.
For this purpose, the combination process of a kind of metal covering and wood skin, including:
A. by metal material processing into predetermined shape;
B. blasting treatment, the compressed gas of the blasting treatment are carried out to the composite surface of the metal material of institute's machine-shaping
With the air pressure of 0.6-0.8 MPa (MPa), distance of the shower nozzle spout away from 10-20 centimetre of composite surface is uninterruptedly persistently sprayed on described body
The composite surface of metal material;
C. with Reactive hot melt adhesive in the metal material composite surface cloth glue;
D. after wood skin is flattened, it is plated on the metal material composite surface for being coated with the PUR;
E. wood skin is overlayed in the metal material composite surface.
Further, sand grains used by the blasting treatment is diamond dust.
Preferably, the diamond dust granularity is 46 mesh.
Further, in the step c, the metal material composite surface preheating temperature carries out cloth when reaching more than 40 DEG C
Glue.
Preferably, the preheating temperature reaches 40-50 DEG C.
Further, the moisture Reactive hot melt adhesive of glue temperature 140-180 DEG C is coated on into the metal material to be combined
Face, cloth glue amount 80-200 grams per square meter.Wherein, described is that PUR is PUR PURs.
Cloth glue step, using flexible cloth rubber roll cloth glue is carried out.The cloth roll surfaces are suitable to the radial direction for occurring more than 2 millimeters
Deformation.
The wood skin is made up of natural veneer and the backing being compounded on the natural veneer back side.
The backing is using non-woven fabrics or brown paper.
The natural veneer is compound with the backing, using the just described day of 60-80 grams per square meters melamine resin adehsive
So wood skin is compound with water-fast brown paper hot pressing, and hot pressing temperature is 110-130 DEG C, and hot pressing pressure is 0.5-1.0MPa, hot pressing time
For the 30-60 seconds;Or be molded the natural veneer and non-woven fabrics normal temperature extrusion cladding using 60-120 grams per square meters PUR PUR.
Further, in Step d, before flattening, first wood skin is warmed to into what the metal material composite surface had
Preheating temperature.
Further, the metal composite face, the PUR and the wood skin keep the preheating temperature temperatures above
Until entering step e.
Further, in Step d, the wood skin is flattened using at least one nip rolls.
Further, in step e, the wood skin overlay the metal material composite surface pressure be 0.1MPa with
On.
Preferably, the wood skin overlay the metal material composite surface pressure be more than 0.5MPa.
Wood skin is overlayed on the metal material composite surface using at least one pressure roller.
Last described nip rolls coordinates wood skin flattening with the first pressure roller, and keeps exhibition by the pressure roller
Level state extremely fits to the wood skin on the composite surface.
The pressure roller is made up of a series of independent sub- rollers, keeps pressure until glue temperature drop is big to gumminess viscous force
After the bounce of wood skin itself.
The metal material paste the semi-finished product that the wood skin is constituted from overlay line it is offline after be directly placed into cold press,
Apply pressure in wood skin after laminating, cold pressing minute time 20-40.
In the cold press, semi-finished product are stacked together described in pieces, and between each semi-finished product cushion pad and/or thickness are put
Metric.
Preferably, the wood skin thickness is 0.2-1.0 millimeters.
Preferably, the metal material is galvanized steel plain sheet, the aluminium sheet of 0.5-5.0 millimeters or the structure of thickness 0.6-2 millimeters
Aluminum steel bar.
Further, after glue curing, weather-proof process is carried out to the wood skin.
Technical solution of the present invention, has the advantage that:
1. this programme metal composite face processes and adopts sandblasting scheme, without phosphorization sewage discharge, does not have molding powder high-temperature baking,
Reducing energy consumption.Continuously produced using sand-blasting machine, uniform in effect, efficiency high.
2. elastical cloth rubber roll cloth glue is adopted, it is ensured that the uniformity of cloth glue, and then ensure the adhesive strength of whole bonding plane
Uniformity.
3. the wood skin is flattened using nip rolls so that wood skin is entirely plated on the metal material composite surface,
Gauffer is avoided, the uniformity of adhesive strength is further ensured that.
Specific embodiment
Technical scheme will be clearly and completely described by one embodiment below.
The metal covering of the present embodiment and the combination process of wood skin, including:
A. by metal material processing into the shape for needing;
B. blasting treatment is carried out to the composite surface of the metal of institute's machine-shaping, the blasting treatment is using containing 46 mesh
The compressed gas of diamond dust are with the air pressure of 0.6-0.8 MPa (MPa), and distance of the shower nozzle spout away from 10-20 centimetre of composite surface is quick
The spot that is uninterruptedly sprayed on the composite surface of galvanized steel plain sheet to clear up on the galvanized steel plain sheet composite surface simultaneously carries out matte finish;It
Afterwards using clean air to blasting treatment after the galvanized steel plain sheet composite surface clear up, remove residual sand dust.
C. the galvanized steel plain sheet composite surface is heated to 40-60 DEG C of preheating temperature, generation is suitable to more than 2 millimeters with surface
Radial deformation flexible cloth rubber roll by the PUR PURs of glue temperature 140-180 DEG C the galvanized steel plain sheet composite surface cloth
Glue, cloth glue amount 80-200 grams per square meter;
D. required size and shape will be in advance combined into and with 60-80 grams per square meter melamine resin adehsives with temperature 110-130
DEG C, pressure 0.5-1.0MPa, 0.2 millimeter of natural veneer being combined with each other through hot pressing in 30 seconds is constituted with water-fast brown paper
Wood skin is warmed to the preheating temperature that the metal material composite surface has, i.e., 40-60 DEG C;Then using three nip rolls successively
Mutually rolling flattens wood skin;
E. the pressure roller group being made up of the pressure roller of 20 independent pressures with a row, wherein last described nip rolls and head
The individual pressure roller coordinates carries out last flattening, and the wood skin that Jing is finally flattened is tightened conveying and overlayed by first pressure roller
On the composite surface of the galvanized steel plain sheet;Ensure that the metal composite face can be applied at least pressure of 0.5MPa, until glue
Coolant-temperature gage drops to bounce of the gumminess viscous force more than wood skin itself;
F. the galvanized sheet paste the semi-finished product that the wood skin is constituted from overlay line it is offline after be directly placed into cold press, number
Semi-finished product are stacked together described in part, and between each semi-finished product cushion pad and/or finger gauge are put, and cold pressing minute time 20-40;So
The metallic door is stood afterwards, waits PUR reaction to complete solidification;
H. after glue curing, weather-proof process is carried out to the wood skin, sanding process is carried out to the wood skin after stickup, then sprayed
The weather-proof solid priming paint of envelope, afterwards again sanding is processed, and carries out wiping color, sprays weatherable primer, then sanding again afterwards, repaiies color, finally sprays weather-proof
Face PU is painted.
Wherein, the galvanized steel plain sheet composite surface described in c, Step d, the PUR and the wood skin keep the preheating
Temperature temperatures above is until enter step e.
Obviously technical scheme is useful on the ornament materials such as such as metal wood strip, metal floor, it is also possible to used
In terms of furniture component.Certainly, the part relatively low for active force is born, being such as used as the metal wood strip of indoor doorframe can adopt
0.6 millimeter of relatively thin galvanized steel plain sheet.And for this kind of metal material with two or more composite surface of wood strip, be adapted to adopt
Non-woven fabrics improves the toughness of wood skin as the backing of wood skin, meets the requirement of the transition between different composite face.Such wood skin
The natural veneer and non-woven fabrics normal temperature extrusion cladding can also be molded using 60-120 grams per square meters PUR PUR.But for
Too small composite surface can also be by the way of flattening by hand and overlaying by hand.
According to the difference of decorative element, the galvanized steel plain sheet thickness in above example can adopt 0.6-2 millimeters.Certain root
According to demand, the metal material can also adopt the aluminium sheet or structure aluminum lines of 0.5-5.0 millimeters.
Diamond dust is employed in above-described embodiment as the medium of blasting treatment, and adopts silica sand to solve the application
The technical problem of proposition.And 46 mesh diamond dust are the particle diameters of the usual blasting treatment for adopting, but for purposes of the invention, other grains
The sand grains in footpath also can be employing.
In the above-described embodiments, cloth glue is carried out by when metal material composite surface preheating temperature reaches more than 40 DEG C.This
The temperature range of bright 40-50 DEG C of middle employing, that is, will not be because losing due viscous embrittlement when meeting hot melt adhesive plaster glue suddenly to the cold
Performance is connect, again being capable of reducing energy consumption.
Above example employs the mode of the backing lining in wood skin, but is glued on more smooth composite surface
During patch, thicker wood skin is adopted, such as 1.0 millimeters of wood skin, it is also possible to directly carry out bonding, and without any backing.
Certainly, in above example Step d, natural veneer reaches 60 seconds with the hot pressing time of water-fast brown paper and still falls within
Effective hot press period.
In the step e of above-described embodiment, the natural veneer overlays the pressure in the metal material composite surface and reaches
More than 0.1MPa, and reach more than 0.5MPa overlay it is better.
Then weather-proof process in above-described embodiment can also be rubbed using sanding process is carried out to the wood skin after stickup
The coloured wood wax oil of 30-60 grams per square meters, the posterior photocuring 30-60 seconds, then the transparent wood wax oil of roller coating 60-100 grams per square meters, then light is solid
Change the 30-60 seconds, afterwards with 600-800 mesh sand paper light weight sands, then rub 30-60 grams per square meter haze tallows face oil, last photocuring 30-
50 seconds.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.