阅读说明：本技术 一种防火条的制作方法及产品 (Manufacturing method of fireproof strip and product ) 是由 蒲亮 于 2019-11-14 设计创作，主要内容包括：本发明公布了一种防火条的制作方法,其具体方法按下列步骤进行：准备防火板、粉接材料、粘合剂、粘接层、木板；将防火板表面清洁干燥,除去油脂、灰尘等杂质；C、将木板用砂光机砂光、平整；预压：防火板的单面与木板的双面上均匀涂抹粘合剂,干燥一定时间后,按照防火板-粘接层-木板-粘接层-防火板的层状顺序进行预压；冷压定形：采用冷压机进行冷压定形；养护：初步固化后,下冷压机养护；切边切条：以一面为标准面进行切边,并切成指定规格的长条,即成防火门条。为了进一步提高下游生产中的防火门稳定性,在防火门条的侧面设置有使防火材料与防火门条紧密结合的加固结构。所述的加固结构为开设的数个凹孔或数个凸出的凸隼。(The invention discloses a manufacturing method of a fireproof strip, which comprises the following steps: preparing a fireproof plate, a powder bonding material, an adhesive layer and a wood plate; cleaning and drying the surface of the fireproof plate, and removing impurities such as grease, dust and the like; C. sanding and flattening the wood board by using a sanding machine; pre-pressing: uniformly coating an adhesive on one surface of the fireproof plate and the two surfaces of the wood plate, drying for a certain time, and pre-pressing according to the layered sequence of the fireproof plate, the adhesive layer, the wood plate, the adhesive layer and the fireproof plate; cold pressing and shaping: cold pressing and shaping by a cold press; and (5) maintenance: after primary curing, putting the mixture into a cold press for curing; trimming and slitting: and (4) trimming one surface of the fireproof door strip serving as a standard surface, and cutting the fireproof door strip into long strips with specified specifications to obtain the fireproof door strip. In order to further improve the stability of the fire door in downstream production, a reinforcing structure which enables the fire-proof material to be tightly combined with the fire door strip is arranged on the side surface of the fire door strip. The reinforced structure is a plurality of concave holes or a plurality of convex falcon.)

1. A manufacturing method of a fireproof strip is characterized by comprising the following steps: the specific method comprises the following steps:

A. preparing a fireproof plate, a powder bonding material, an adhesive layer and a wood plate;

B. cleaning and drying the surface of the fireproof plate, and removing impurities such as grease, dust and the like;

C. sanding and flattening the wood board by using a sanding machine;

D. pre-pressing: uniformly coating an adhesive on one surface of the fireproof plate and the two surfaces of the wood plate, drying for a certain time, and pre-pressing according to the layered sequence of the fireproof plate, the adhesive layer, the wood plate, the adhesive layer and the fireproof plate;

E. cold pressing and shaping: cold pressing and shaping by a cold press;

F. and (5) maintenance: after primary curing, putting the mixture into a cold press for curing;

G. trimming and slitting: one side is taken as a standard surface to be cut into long strips with specified specifications, and the fireproof door strips are formed;

in the step D, the thickness of the coating adhesive is 0.1-0.3mm, the drying time is 15-30min, and the pre-pressing time is 8-12 min;

in the step E, a 400-ton cold press is adopted, the pressure is 10-20kg, and the time is 6-8 h;

in the step F, cold pressing and maintaining for 12-36h by using a cold press;

in the step G, the length of the cut fireproof door strip is 1700 + 2500mm, the width is 400 + 460mm, and the thickness is 500 + 600 mm.

2. A method of making a fire strip as claimed in claim 1, wherein: the fireproof plate is made of any one of inorganic fireproof plate, glass magnesium fireproof plate, calcium silicate, magnesium oxysulfate, magnesium oxide, magnesium oxychloride, magnesium sulfate and cement and the combination of the inorganic fireproof plate and the glass magnesium fireproof plate, and the thickness of the fireproof plate is 3-100 mm.

3. A method of making a fire strip as claimed in claim 1, wherein: the adhesive layer is any one or combination of non-woven fabric, grid cloth, melamine impregnated paper, kraft paper and glass fiber cloth.

4. A method of making a fire strip as claimed in claim 1, wherein: the wood board is any one of finger-jointed solid wood board, block board, shaving board, density board, plywood and fiber board or a composite board spliced with each other.

5. A method of making a fire strip as claimed in claim 1, wherein: in order to further improve the stability of the fire door in downstream production, a reinforcing structure which enables the fire-proof material to be tightly combined with the fire door strip is arranged on the side surface of the fire door strip.

6. A method of making a fire strip as claimed in claim 5, wherein: the reinforcing structure is provided with 1-3 grooves in the transverse direction or the longitudinal direction, and the cross sections of the grooves are triangular, rectangular, arc-shaped and other polygons.

7. A method of making a fire strip as claimed in claim 5, wherein: the reinforcing structure is a strip-shaped step which protrudes transversely or longitudinally, the number of the strip-shaped steps is 1-3, and the cross section of the strip-shaped step is triangular, rectangular, arc-shaped or other polygonal shape.

8. A method of making a fire strip as claimed in claim 5, wherein: the reinforced structure be the several shrinkage pool or the convex falcon of several of seting up, shrinkage pool and convex falcon cross-section be shape such as polygon, circular, cross.

9. A fire protection strip product, characterized by: a product made according to any of the preceding claims.

Technical Field

The invention relates to a process of a fire-proof strip, in particular to a manufacturing method of the fire-proof strip and a product.

Background

As is well known, in the existing wooden fire door structure, finger-jointed battens, composite solid wood finger-jointed battens, multi-layer solid wood composite finger-jointed battens and the like are mainly used, fire-proof plates are covered on the battens, and the battens are combined by technical means of gluing, nailing and the like, so that a fire door frame is formed, and finally, a fire-proof material is filled in the door frame to form the fire door. Such an approach has the following disadvantages: 1. the fireproof plate is cut into strips, the powder particles are large, the powder slag quantity is large, the glue usage amount is large, the manual usage amount is large, the cost is high, the environment is not protected, meanwhile, the nail gun is frequently used, the unsafe condition exists, meanwhile, the door strips and the fireproof filling material cannot be effectively and tightly combined, and the fireproof door cannot bear large explosion when a fire disaster happens.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a method for manufacturing a fireproof strip which is safe, environment-friendly and good in explosion-proof effect. The specific method comprises the following steps:

A. preparing a fireproof plate, a powder bonding material, an adhesive layer and a wood plate;

B. cleaning and drying the surface of the fireproof plate, and removing impurities such as grease, dust and the like;

C. sanding and flattening the wood board by using a sanding machine;

D. pre-pressing: uniformly coating an adhesive on one surface of the fireproof plate and the two surfaces of the wood plate, drying for a certain time, and pre-pressing according to the layered sequence of the fireproof plate, the adhesive layer, the wood plate, the adhesive layer and the fireproof plate;

E. cold pressing and shaping: cold pressing and shaping by a cold press;

F. and (5) maintenance: after primary curing, putting the mixture into a cold press for curing;

G. trimming and slitting: and (4) trimming one surface of the fireproof door strip serving as a standard surface, and cutting the fireproof door strip into long strips with specified specifications to obtain the fireproof door strip.

The fireproof plate is made of any one of inorganic fireproof plate, glass magnesium fireproof plate, calcium silicate, magnesium oxysulfate, magnesium oxide, magnesium oxychloride, magnesium sulfate and cement and the combination of the inorganic fireproof plate and the glass magnesium fireproof plate, and the thickness of the fireproof plate is 3-100 mm.

The adhesive layer is any one or combination of non-woven fabric, grid cloth, melamine impregnated paper, kraft paper and glass fiber cloth.

The wood board is any one of finger-jointed solid wood board, block board, shaving board, density board, plywood and fiber board or a composite board spliced with each other.

In the step D, the thickness of the adhesive is coated to be 0.1-0.3mm, the drying time is 15-30min, and the pre-pressing time is 8-12 min.

In the step E, a 400-ton cold press is adopted, the pressure is 10-20kg, and the time is 6-8 h.

And in the step F, cold pressing and maintaining for 12-36h by using a cold press.

In the step G, the length of the cut fireproof door strip is 1700 + 2500mm, the width is 400 + 460mm, and the thickness is 500 + 600 mm.

In order to further improve the stability of the fire door in downstream production, a reinforcing structure which enables the fire-proof material to be tightly combined with the fire door strip is arranged on the side surface of the fire door strip.

The reinforcing structure is provided with 1-3 grooves in the transverse direction or the longitudinal direction, and the cross sections of the grooves are triangular, rectangular, arc-shaped and other polygons.

The reinforcing structure can also be a strip-shaped step which protrudes transversely or longitudinally, the number of the strip-shaped steps is 1-3, and the cross section of the strip-shaped step is triangular, rectangular, circular arc or other polygons.

The reinforcing structure can also be a plurality of concave holes or a plurality of convex falcon, and the cross sections of the concave holes and the convex falcon are polygonal, circular, cross-shaped and the like.

According to the technical scheme, the surface of the fireproof plate is cleaned before manufacturing, and the wood plate is flatly sanded by the sander, so that the bonding strength among layers can be improved; the adhesive strength, namely the bonding fastness, of the glue can be further improved by adopting the mesh cloth, the glass fiber cloth and the like as the bonding layers among the layers, but the mesh cloth is positioned between the two layers, and displacement movement can be generated when the two layers are not completely bonded, so that the bonding instability of the plate is caused, the activity between the two adjacent layers needs to be reduced by cold pressing, and the bonding stability is improved and is convenient to control; according to the scheme, each laminate is fixed by adopting a mode of pre-pressing and then cold-pressing for shaping, the glue after hot pressing has larger fluidity, the adjacent plates are difficult to control, and meanwhile, the water in the glue is evaporated too fast due to higher hot-pressing temperature, the expansion coefficient is improved, and the bonding effect and position change are influenced, so that the position, thickness and bonding strength of the plates can be well controlled by adopting the pre-pressing and then cold-pressing for shaping, workers can adjust the pre-pressing time according to the curing time of the glue, and the position among layers can be more accurately shaped; through multiple tests, under the conditions that the pressure is 10-20kg and the time is 6-8min, the effect is optimal, the flatness among the board layers can be corrected through the pressure, the time is determined according to the curing time of glue, and the optimal curing time is 6-8min but not unchanged, but is determined according to the temperature, the humidity and the temperature difference of each place; the cold press shaping for 12-36h by adopting the cold press has the advantages that the stability and the quality of the plate are further improved, the temperature is too high during pressing the plate, the change of the water content of the plate and glue is large, and the plate can be bent and deformed, so that the best effect can be achieved by adopting the long-time cold press, the high-quality plate is obtained, the bonding strength is good, and the plate is firm, smooth and stable. Therefore compare with traditional doorstrip, its intensity is better, and is difficult for the burning, can effectual realization fire prevention effect to realize better blast resistance in the conflagration.

Meanwhile, the structure has high bonding strength, so that the use of a nail gun is avoided, the damage of iron nails to human bodies is reduced to a certain degree, and the safety is improved. It can be seen that the objects of the invention are fully achieved.

Furthermore, because this technology is opened flutedly at the lateral wall of fire prevention strip, so in downstream production, process this fire prevention strip into the door frame to when carrying out fire-proof material watering (like cement) in the frame, liquid fire-proof material flows into in the recess, and solid-state fire-proof material forms unsmooth meshing relation with the door strip handing-over department after the cooling, and the overall stability of the door body that strengthens more keeps fire-proof material and fire-proof door strip firm not to break away from when fire door resists fire explosion. In a similar way, if a convex strip-shaped step or a convex tenon is added on the side wall of the fireproof strip, after the liquid fireproof material is poured and cooled, the concave-convex meshing relation is formed at the joint of the fireproof material and the door strip, so that the integral stability of the door body is enhanced.

Drawings

FIG. 1 is a schematic cross-sectional view of a fire-barrier strip product of the present invention;

FIG. 2 is a schematic structural diagram of a product of example 1 of a method for manufacturing a fire-retardant strip according to the present invention;

FIG. 3 is a schematic structural diagram of a product of example 2 of a method for manufacturing a fire-retardant strip according to the present invention;

FIG. 4 is a schematic view of the use of the product of example 2 of a method of making a fire-retardant strip of the present invention;

FIG. 5 is a schematic structural diagram of a product of example 3 of a method for manufacturing a fire-retardant strip according to the present invention;

FIG. 6 is a schematic diagram of the use of the product of example 3 of a method of making a fire-retardant strip of the present invention;

fig. 7 is a schematic view illustrating an example of a product of a method for manufacturing a fire retardant strip according to the present invention.

Example 1, referring to fig. 1 and 2, a method for manufacturing a fire retardant strip. The specific method comprises the following steps:

A. preparing a fireproof plate 4, a powder bonding material, an adhesive layer 2 and a wood plate 3;

B. cleaning and drying the surface of the fireproof plate, and removing impurities such as grease, dust and the like;

C. sanding and flattening the wood board by using a sanding machine;

D. pre-pressing: uniformly coating an adhesive on one surface of the fireproof plate and the two surfaces of the wood plate, drying for a certain time, and pre-pressing according to the layered sequence of the fireproof plate, the adhesive layer, the wood plate, the adhesive layer and the fireproof plate;

E. cold pressing and shaping: cold pressing and shaping by a cold press;

F. and (5) maintenance: after primary curing, putting the mixture into a cold press for curing;

G. trimming and slitting: one side is taken as a standard surface to be cut into long strips with specified specifications, and the fireproof door strip 1 is formed;

H. a groove 11 parallel to the edge of the door strip is formed on the side surface of the fireproof door strip by a grooving machine.

The fireproof plate is made of cement materials, and the thickness of the fireproof plate is 3-100 mm.

The adhesive layer is a mesh cloth.

The wood board is a finger joint solid wood board.

In the step D, the thickness of the adhesive is 0.1mm, the drying time is 10min, and the pre-pressing time is 10 min.

In the step E, a 400-ton cold press is adopted, the pressure is 10kg, and the time is 8 hours.

And in the step F, cold pressing and maintaining for 24 hours by using a cold press.

And G, cutting the fire door strips into strips with the length of 2500mm, the width of 460mm and the thickness of 600 mm.

In order to further improve the stability of the fire door in downstream production, a reinforcing structure which enables the fire-proof material to be tightly combined with the fire door strip is arranged on the side surface of the fire door strip.

The reinforcing structure is transversely or longitudinally provided with 1 groove, and the cross section of each groove is rectangular.