CN1046658C - Method of fabricating concave patterned cement plate - Google Patents
Method of fabricating concave patterned cement plate Download PDFInfo
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- CN1046658C CN1046658C CN 97111989 CN97111989A CN1046658C CN 1046658 C CN1046658 C CN 1046658C CN 97111989 CN97111989 CN 97111989 CN 97111989 A CN97111989 A CN 97111989A CN 1046658 C CN1046658 C CN 1046658C
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Abstract
The present invention provides a method for manufacturing a cement plate with a pattern by which it is possible to form a cement plate with a pattern having a fine texture without lowering productivity. A cement slurry 1 is prepared by dispersing cement, a silica component and a reinforcing fiber into water and a cement base plate 2 is formed by making the slurry 1 into a sheet. After adjusting the content of moisture of the cement base plate 2 to 40-70%, the cement base plate 2 is pressed so that pattern with a largest depth equivalent to 30-50% of the plate thickness is formed. In this method for manufacturing a cement plate with a pattern, a combination of pulp fiber and asbestos fiber are used as the reinforcing fiber. The water filtering properties of the cement slurry can be enhanced compared only using asbestos fiber. because the asbestos fiber has a better-catch character of cement,therefore without using agglutinin can also form a cement plate with a pattern having a fine texture without lowering productivity.
Description
The present invention relates to cement plate manufacture method as the band ridge design of building panels such as roof Material, wall material use.
Once be that ridge design is added on the surface in the past, and strengthened aesthetic appearance, and made cement plate with ridge design.Usually, when forming the cement plate of band ridge design, at first, cement and silica composition and fortifying fibre etc. are scattered in the water, be modulated into cement slurry, then, the cement slurry of manufacturing paper with pulp forms concrete substrate, implement compacting by the surface of concrete substrate with mould crimping again with ridge design surface, surface at concrete substrate forms ridge design, and then, the maintenance concrete substrate makes its sclerosis.
Described fortifying fibre, be for the intensity that improves figuratum cement plate to guarantee the quality on the intensity.Asbestos fibre and paper pulp fiber etc. have been used respectively separately as this fortifying fibre.
But as fortifying fibre, if use asbestos fibre separately, because the drainability of cement slurry is poor, dehydration needs the time, has the low problem of production efficiency of figuratum cement plate.Also have, as fortifying fibre when separately using paper pulp fiber, for improving the seizure power of the solid portions such as cement particle that produce by paper pulp fiber, improve the yield rate when manufacturing paper with pulp, generally cement slurry is added agglutinant, the cement slurry that has added agglutinant is because flocculate becomes big, and the flowability of cement slurry reduces, exist or production efficiency low, or the problem of the exterior quality difference of cement plate.Particularly at the cement slurry of manufacturing paper with pulp, form thin cement plate, and this cement plate reeled on one side for several times with roller milling roller, when forming on one side the concrete substrate that constitutes by multilayer of lamination, since cement slurry is added agglutinant, the decline of the tack of the cement plate of roller milling roller, thus, be easy to generate cement plate and peel off, the problem that causes production efficiency to descend from roller milling roller.
The present invention is in view of above-mentioned aspect, to provide production efficiency reduced, and the manufacture method of wounded in the battle line cement plate that can form the cement plate of high (outward appearance is good) band ridge design of exterior quality is a purpose.
The present invention relates to cement plate manufacture method with ridge design, cement, silica composition and fortifying fibre are scattered in be modulated into cement slurry in the water in, the cement slurry 1 of manufacturing paper with pulp forms concrete substrate 2, the moisture content of concrete substrate 2 is adjusted to after the 40%-70%, by concrete substrate 2 is implemented compacting, form the figuratum cement plate manufacture method of the decorative pattern of the darkest 30%-50% that is of a size of thickness of slab, it is characterized in that:
Use paper pulp fiber and asbestos fibre jointly as described fortifying fibre.Like this, because common paper pulp fiber and the asbestos fibre of using, compare when using asbestos fibre separately as fortifying fibre, can improve the drainability of cement slurry, and, by using the high asbestos fibre of seizure power to the solid-state part of cement particle etc., do not need to use for improving the agglutinant that yield rate is used, the flowability that can not cause being caused cement slurry by agglutinant reduces and quality decline (appearance poor), can form and not make the production efficiency reduction, and the cement plate of the band ridge design of quality height (outward appearance is good).
Making paper pulp fiber and asbestos fibre contain the weight of 2%-10% respectively with respect to all solids of cement slurry 1 part, is that we are desirable.According to this proportioning, can not use the drainability and the fortifying fibre of cement slurry, and produce the seizure power decline of solid portions such as cement particle, form the cement plate of high-quality (outward appearance is good) band ridge design.
Also have, the cement slurry 1 of manufacturing paper with pulp forms thickness and is after the cement thin slice 4 of 0.2-2mm, stacked several piece cement thin slice 4 also can form described concrete substrate 2, thus, can form and not make production efficiency decline, the cement plate of high-quality (outward appearance is good) band ridge design.
And, when cement slurry 1 is supplied with filter cloth 5, wish that by cement slurry 1 dehydration, the cement slurry 1 of manufacturing paper with pulp forms described concrete substrate 2.This occasion can form production efficiency be reduced, the cement plate of high-quality (outward appearance is good) band ridge design.
Below accompanying drawing is done simple declaration.
Shown in Figure 1 is the sketch map of an example example of the present invention.
Shown in Figure 2 is the fragmentary cross-sectional view of above-mentioned manufacturing process.
Figure 3 shows that the profile of above-mentioned figuratum cement plate.
Shown in Figure 4 is the sketch map of other examples of the present invention.The explanation of symbol
1. cement slurry
2. concrete substrate
3. decorative pattern
4. cement thin slice
5. filter cloth
A. figuratum cement plate
Example of the present invention below is described.
Can use the well-known cement such as Portland cement, blast-furance cement, alumina cement as cement. And, being the watertightness and the durability that improve figuratum cement plate, silica composition is engaged use, uses separately, or also uses silica, silica sand, Cab-O-sil, silica steam, ashes etc. more than two kinds. The proportional quantity that also has silica composition with respect to the 20-60 wt part of total solids part 100 weight of cement slurry 1 for well. If proportional quantity less than 20 wt parts of silica composition, worry to reduce watertightness and the durability of figuratum cement plate, if the proportional quantity of silica composition surpasses 60 wt parts, the use level of cement reduces, and worries to reduce the intensity of figuratum cement plate.
As fortifying fibre, jointly use paper pulp fiber and asbestos fibre. Paper pulp fiber can use the fiber that is obtained by L material (broad leaf tree), N material (coniferous tree), ramie and cotton linter etc. Also have, for guaranteeing the intensity of figuratum cement plate, it is 6000cm that asbestos fibre uses 4-6 grade (Quebec Standard Classification) surface area ratio2The above fiber of/g is for well. The proportional quantity of paper pulp fiber wishes to be the 2-10 % with respect to total solids part 100 wt parts in the cement slurry 1. If 2% of the not enough weight of the proportional quantity of paper pulp fiber worries to reduce the drainability of cement slurry 1, surpass heavyly by 10% such as the proportional quantity of paper pulp fiber, the particles such as cement that probably can use fortifying fibre to catch reduce, and yield rate reduces. In addition, the proportional quantity of asbestos fibre wishes to be the 2-10% with respect to total solids part 100 wt parts in the cement slurry 1. If 2% of the not enough weight of proportional quantity of asbestos fibre is reduced by the particle of the cement of being worried to make fortifying fibre to catch etc., the yield rate reduction, if the proportional quantity overweight of asbestos fibre 10%, probably can reduce the drainability of cement slurry. And, in the described cement slurry 1, as required, also can fusion ripple rice top grade aglite, the mineralogical composition such as mica and wollastonite (wollastonite).
Figuratum cement plate A among the present invention can make with Fig. 1 such long guiding principle or the machine of manufacturing paper with pulp. In Fig. 1, the 5th, the filter cloth that water penetration is arranged of woollen blanket etc., make it to a direction advance (direction of arrow X) form the Endless ring-type. The 11st, the slurry container of storage of water material-mud 1 is provided in top one side of the sloping portion 5a of filter cloth 5. The 12nd, make to form roller milling roller cylindraceous. The 13rd, be connected in the suction box of vavuum pump etc.
When using above-mentioned material and the machine of manufacturing paper with pulp to make figuratum cement plate, at first, the mixing of solid portion 100 wt parts such as cement, silica composition and fortifying fibre is scattered in the water of 400-2000 weight, 11 li of slurry container are supplied with and be stored in to furnishing cement slurry 1 with this cement slurry 1. Then, when filter cloth 5 is advanced to the direction of roller milling roller 12, the cement slurry 1 of the sloping portion 5a that is attached to filter cloth 5 is copied when carrying, with inhaling box 13 with the dehydration of the cement slurry on the filter cloth 5, thus, manufacturing paper with pulp into thickness is the cement thin slice 4 of 0.2-2mm. Then, by with these cement thin slice 4 usefulness roller milling rollers 12, it is stacked to reel for several times, forms the concrete substrate 2 that is made of multilayer. Then, after roller milling roller 12 takes out concrete substrate 2, as shown in Figure 2, with 16 pairs of concrete substrates of mould, 2 compactings with male and fomale(M﹠F) 15, by 20-200 kgf/cm2The compacting of pressure, form concavo-convex decorative pattern 3 on the surface of concrete substrate 2. Afterwards, by to concrete substrate 2 maintenances, sclerosis, can form figuratum cement plate A as shown in Figure 3.
Also have figuratum cement plate of the present invention, available other machine manufacturings of manufacturing paper with pulp as shown in Figure 4. In Fig. 4, the 5th, woollen blankets etc. have the filter cloth of water penetration, to a direction advance (direction of arrow X) form the Endless ring-type. The 14th, the service tank storage tank of storage of water material-mud 1 is provided in top one side of filter cloth 5. The 13rd, be connected in the suction box of vavuum pump etc.
When making figuratum cement plate with above-mentioned material and the machine of manufacturing paper with pulp, at first, the 100 wt parts mixing of solid portions such as cement and silica composition and fortifying fibre is scattered in the water of 400-2000 weight, and be modulated into cement slurry 1, this cement slurry 1 is offered in the service tank 14 store.Then, supplying with the cement slurry 1 that is flowed down by service tank storage tank 14 on the filter cloth 5 of advancing when, by with inhaling box 13 cement slurry on the filter cloth 51 being dewatered, manufacturing paper with pulp forms the concrete substrate 2 of individual layer.Then, after taking off concrete substrate 2 from filter cloth 5, as shown in Figure 2, with mould 16 pressed cement substrates 2, by using 20-200kgf/cm with male and fomale(M﹠F) 15
2Pressure compacting, the surface of concrete substrate 2 is formed concavo-convex decorative pattern 3.Afterwards, maintenance concrete substrate 2 makes its sclerosis, thus, can form figuratum cement plate A as shown in Figure 3.
On the manufacture method of described figuratum cement plate A, the moisture content of the concrete substrate 2 before the compacting is adjusted to 40-70%.The moisture content adjustment can inhale the box dehydration or on roller milling roller dehydration or with belt extrusion etc. by giving extrusion dehydration etc.If during the moisture content less than 40% of concrete substrate 2, must carry out long decorative pattern compacting, otherwise worry that production efficiency reduces, if the moisture content of concrete substrate 2 surpasses 70%, the conformality of concrete substrate 2 is low excessively, worries both to have made by compacting, can not form decorative pattern.
Also have, the depth capacity size h of decorative pattern 3 is the 30-50% of the thickness of slab H of figuratum cement plate A.If 30% of the not enough thickness of slab H of the depth capacity size h of decorative pattern 3, can not form the decorative pattern 3 of dark carving, the aesthetic appearance of worrying figuratum cement plate A reduces, if the depth capacity size h of decorative pattern 3 surpasses 50% of thickness of slab, worries that figuratum cement plate A can be in the part breakage of decorative pattern 3.
In the manufacture method of figuratum cement plate A of the present invention,, use paper pulp fiber and asbestos fibre jointly as fortifying fibre, owing to use asbestos fibre, by fortifying fibre, can improve the seizure power of particles such as cement, both made and mismatched agglutinant and also can improve yield rate.Therefore, can not produce the production efficiency that is caused by agglutinant reduces and quality reduction (aesthetic appearance reduction).Also have,, the drainability of cement slurry 1 is reduced, can prevent that production efficiency from reducing owing to use paper pulp fiber.
Below, by embodiment in detail, the present invention is described in detail.
Embodiment 1-4 and comparative example 1,2
Used with table 1, table 2 cement, silica, ashes, paper pulp fiber and asbestos fibre as solid portion as proportioning.This solid portion weight 100 is scattered in the water of 1000 weight, is modulated into cement slurry 1.With this cement slurry 1 on the filter cloth 5 of as shown in Figure 1 the machine of manufacturing paper with pulp, copy carry in, by on filter cloth 5 with cement slurry 1 dehydration, form thickness and be 55% cement thin slice 4 for the 0.4mm moisture content.Then, these cement thin slice 4 usefulness roller milling rollers 12 are reeled 30 times, forming thickness is the concrete substrate 2 of 12mm.Then, take out concrete substrate 2 from roller milling roller, as shown in Figure 2, with 16 pairs of concrete substrates of mould, 2 compactings, by using 20kgf/cm with male and fomale(M﹠F) 15
2The compacting of pressure, form concavo-convex decorative pattern 3 at concrete substrate 2, afterwards, by to concrete substrate 2 maintenances, sclerosis, forming thickness of slab H is 12mm, depth capacity size h is that 3.8mm has the figuratum as shown in figure 3 cement plate A of decorative pattern 3.In addition, as described paper pulp fiber, use the paper pulp fiber with the ratio mixing of NUKP/LUKP=50/50 with NUKP (coniferous tree is not shone sulfate pulp) and LUKP (broad leaf tree is not shone sulfate pulp).Also have, asbestos fibre is at specific area 1000cm
2The state of/g uses down.And, used the depth capacity of male and fomale(M﹠F) 15 to be of a size of the mould 16 of 4.0mm.
Cement, silica, ashes, paper pulp fiber and the asbestos fibre of proportioning (unit is a weight) have been used by table 1 as solid portion.These solid portion 100 weight are mixed in the water of 1000 weight modulation cement slurry 1.Supplying with this cement slurry 1 on the filter cloth 5 of the machine of manufacturing paper with pulp when, as shown in Figure 4, by the cement slurry on the filter cloth 51 is dewatered, formation thickness is 55% individual layer concrete substrate 2 for the 12mm moisture content.Then, take off concrete substrate 2, as shown in Figure 2, suppress with 16 pairs of concrete substrates 2 of mould, through using 20kgf/cm with male and fomale(M﹠F) 15 from filter cloth 5
2The compacting of pressure, on concrete substrate 2, form concavo-convex decorative pattern 3, afterwards, by to concrete substrate 2 maintenances, sclerosis, forming thickness of slab H is 12mm, depth capacity size h is that 3.8mm has decorative pattern 3, figuratum as shown in figure 3 cement plate A.In addition, paper pulp fiber and asbestos fibre have used the material same with described embodiment 1-4 and comparative example 1,2.
Comparative example 3,4
Except the cement slurry 1 to comparative example 1,2 adds the agglutinant of 100ppm, the same with described embodiment 1-4 and comparative example 1,2, form wounded in the battle line cement plate A.
In embodiment 1-5 and comparative example 1-4, measure the drainage time (cement slurry 1 on the filter cloth 5 is to the required dewatering time of moisture content 55%) of cement slurry 1.Also have, in embodiment 1-5 and comparison 1-4, measured yield rate.Yield rate (%) is to represent with (gross weight of the solid portion of proportioning in the cement slurry 1)/(weight of figuratum cement plate A) * 100.Also have, to embodiment 1-5 and comparative example, the quality of the figuratum cement plate A of 1-4 has been carried out ocular estimate.Then, to the deviation of thickness be below the 1mm, the cement plate of no fragment defectives such as (breaking) puts in marks zero, to thickness deviation be below the 2mm, the cement plate of no fragment defectives such as (breaking) is put in marks △, to thickness deviation be below the 3mm, have the cement plate of fragment defectives such as (breaking) to put in marks *.In addition, estimated the transfer (coiling) of 4 pairs of roller milling rollers 12 of cement thin slice of embodiment 1-4 and comparative example 1-4.Then, cement thin slice 4 is not come off from roller milling roller, that peels off has added symbol zero, the cement thin slice have from the roller milling roller machine come off, peel off added symbol *.The result is shown in the table 1,2.
Table 1
| Embodiment 1 | | Embodiment 3 | Embodiment 4 | | |
| Cement | 41 | 38 | 41 | 38 | 38 |
| Silica | 20 | 18 | 20 | 18 | 18 |
| Ashes | 31 | 28 | 31 | 28 | 28 |
| Paper pulp fiber | 6 | 6 | 2 | 10 | 10 |
| | 2 | 10 | 6 | 6 | 6 |
| Agglutinant | - | - | - | - | - |
| The thickness of concrete substrate (mm) | 12 | 12 | 12 | 12 | 12 |
| The number of plies of concrete substrate | 30 | 30 | 30 | 30 | 1 |
| Moisture content (%) before the compacting | 55 | 55 | 55 | 55 | 55 |
| The depth capacity size (mm) of decorative pattern | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
| Drainage time (second) | 90 | 200 | 210 | 120 | 120 |
| Yield rate (%) | 95 | 98 | 98 | 95 | 96 |
| Transfer during coiling | ○ | ○ | ○ | ○ | - |
| Quality | ○ | △ | ○ | △ | △ |
Table 2
| Embodiment 1 | | Embodiment 3 | Embodiment 4 | |
| Cement | 41 | 41 | 41 | 41 |
| Silica | 20 | 20 | 20 | 20 |
| Ashes | 33 | 33 | 33 | 33 |
| Paper pulp fiber | 6 | - | 6 | - |
| Asbestos fibre | - | 6 | - | 6 |
| Agglutinant | - | - | 100ppm | 100ppm |
| The thickness of concrete substrate (mm) | 12 | 12 | 12 | 12 |
| The number of plies of concrete substrate | 30 | 30 | 30 | 30 |
| Moisture content (%) before the compacting | 55 | 55 | 55 | 55 |
| The depth capacity size (mm) of decorative pattern | 3.8 | 3.8 | 3.8 | 3.8 |
| Drainage time (second) | 40 | 480 | 18 | 180 |
| Yield rate (%) | 75 | 99 | 98 | 99 |
| Transfer during coiling | × | ○ | × | × |
| Quality | ○ | ○ | × | × |
We know from table 1,2, and embodiment 1-5 compares with the independent comparative example 1 of paper pulp fiber that used, and can improve yield rate and transfer property.Also have embodiment 1-5 to compare, can shorten drainage time, improve drainability with the independent comparative example 2 of asbestos fibre that used.In addition, in comparative example 3,4,, compare,, reduced transfer and quality (outward appearance) though improved yield rate and drainability with comparative example 1,2 owing to use agglutinant.To this, embodiment 1-5 had both used agglutinant also can improve yield rate and drainability, and therefore, the reduction and the quality that can not produce the transfer that is caused by agglutinant descend.
Other embodiment related to the present invention below are described.
Embodiment 6-10 and comparative example 5-8
The paper pulp of cement, silica, ashes and organic fiber (fortifying fibre) is scattered in 10 times the water of solid portion weight with table 3,4 proportioning, be modulated into the cement constituent, what this cement was formed copies the dehydration moisture content to the compacting of regulation shown in 1,2 of carrying and absorb water with woollen blanket, after this, the cement constituent is carried out the decorative pattern compacting with the pressing pressure shown in the table 1,2, form figuratum cement plate.Also have, used the paper pulp that NUKP and LUKP are mixed with the ratio of NUKP/LUKP=50/50 as described paper pulp.
Outward appearance with regard to figuratum cement plate among embodiment 6-10 and the comparative example 5-8 is estimated." well " in the table 3,4 is not have crackle and do not damage decorative pattern by pressure after the expression extrusion moulding.Also have, in table 3,4, just the degree of depth (the maximum pattern depth of mould), the minimum thickness part of the thickness of slab (forming board thickness) of the figuratum cement plate of embodiment 6-10 and comparative example 5-8, the maximum decorative pattern that forms with figuratum mould illustrate respectively with the proportion of maximum ga(u)ge part and the maximum pattern depth of figuratum cement plate (formed products maximum pattern depth) respectively.Also have, the proportion shown in the table 3,4 is over dry proportion (weight after the oven dry in 105 ℃, 24 hours/, volume).
Table 3
| Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | ||
| Cement | 44 | 40 | 40 | 40 | 40 | |
| Silica | 40 | 38 | 38 | 38 | 38 | |
| | 12 | 10 | 10 | 10 | 10 | |
| Paper pulp fiber | 4 | 12 | 12 | 12 | 12 | |
| Moisture content (%) before the compacting | 40 | 40 | 70 | 40 | 40 | |
| Pressing pressure (kgf/cm 2) | 20 | 20 | 20 | 20 | 20 | |
| The thickness of concrete substrate (mm) | 12 | 12 | 12 | 21 | 12 | |
| The maximum pattern depth (mm) of mould | 4.0 | 4.0 | 4.0 | 10.0 | 4.0 | |
| Ocular estimate | Well | Well | Well | Well | Well | |
| Proportion | Minimum thickness part | 1.14 | 1.06 | 1.02 | 1.08 | 1.36 |
| The maximum ga(u)ge part | 1.10 | 1.02 | 1.00 | 1.02 | 1.14 | |
| The maximum pattern depth (mm) of concrete substrate | 3.8 | 3.6 | 3.9 | 9.8 | 3.9 | |
Table 4
| Comparative example 5 | Comparative example 6 | Comparative example 7 | Comparative example 8 | ||
| Cement | 40 | 40 | 40 | 40 | |
| Silica | 38 | 38 | 38 | 38 | |
| Ashes | 10 | 10 | 10 | 10 | |
| | 12 | 12 | 12 | 12 | |
| Moisture content (%) before the compacting | 30 | 90 | 30 | 30 | |
| Pressing pressure (kgf/cm 2) | 20 | 20 | 20 | 300 | |
| The thickness of concrete substrate (mm) | 12 | 12 | 21 | 12 | |
| The maximum pattern depth (mm) of mould | 4.0 | 4.0 | 2.0 | 4.0 | |
| Ocular estimate | The corner part fracture | Distortion | Well | The corner part fracture | |
| Proportion | Minimum thickness part | 1.12 | 1.02 | 1.11 | 1.42 |
| The maximum ga(u)ge part | 1.10 | 1.00 | 1.10 | 1.20 | |
| The maximum pattern depth (mm) of concrete substrate | 2.9 | 2.8 | 1.9 | 3.8 | |
We know from table 3,4, and figuratum cement plate outward appearance is good among the embodiment 6-10, still, figuratum cement plate or distortion in the comparative example 5,6,8, or corner part produces fracture.In addition, comparative example 7, maximum pattern depth is little, can not make dark carving line.
Like this, the cement constituent that will contain cement, silica and fortifying fibre is by compacting, when making the dapple figuratum cement plate in surface, the moisture content of the cement constituent before the compacting is adjusted to the 40-70 percentage by weight, the depth capacity that forms decorative pattern is of a size of the 30-50% of thickness of slab, can form the cement plate of the dark carving line of band of excellent in efficiency.
Also have, maximum ga(u)ge part and minimum thickness partly difference in specific gravity or for the 2-20% of minimum proportion or use 20-200kgf/cm
2Pressure compacting or make it contain paper pulp with respect to the 4-12 percentage by weight of cement constituent solid portion 100 weight, but all efficient forms cement plate with dark carving line better.
Claims (4)
1. manufacture method with the cement plate of ridge design, be that cement, silica and fortifying fibre are scattered in when being modulated into cement slurry in the water, the cement slurry of manufacturing paper with pulp, form concrete substrate, the moisture content of concrete substrate is adjusted to after the 40-70%, concrete substrate is implemented compacting, thus, forming the depth capacity size is the decorative pattern of the 30-50% of thickness of slab, it is characterized in that:
As described fortifying fibre, use paper pulp fiber and asbestos fibre jointly.
2. the manufacture method of the cement plate of band ridge design according to claim 1 is characterized in that:
The content of paper pulp fiber and asbestos fibre is the 2%-10% of the solid portion weight of cement slurry.
3. according to the manufacture method of the cement plate of claim 1 or the described band ridge design of claim 2, it is characterized in that:
The cement slurry of manufacturing paper with pulp, forming thickness is the cement thin slice of 0.2-2mm, with many cement sheet laminations, forms described concrete substrate.
4. according to the manufacture method of the cement plate of claim 1 or the described band ridge design of claim 2, it is characterized in that:
When on filter cloth, supplying with cement slurry, dewater on filter cloth by cement slurry, the cement slurry of manufacturing paper with pulp forms described concrete substrate.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19594396A JPH1034637A (en) | 1996-07-25 | 1996-07-25 | Manufacture of patterned cement plate |
| JP195943/1996 | 1996-07-25 | ||
| JP9736097A JPH10286817A (en) | 1997-04-15 | 1997-04-15 | Manufacture of cement plate with pattern |
| JP097360/1997 | 1997-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1176871A CN1176871A (en) | 1998-03-25 |
| CN1046658C true CN1046658C (en) | 1999-11-24 |
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ID=26438545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97111989 Expired - Fee Related CN1046658C (en) | 1996-07-25 | 1997-07-09 | Method of fabricating concave patterned cement plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046658C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5548340B2 (en) * | 2008-03-31 | 2014-07-16 | ニチハ株式会社 | Manufacturing method of wood cement board |
| US20210129378A1 (en) * | 2018-07-09 | 2021-05-06 | Norwood Architecture, Inc. | Systems and methods for manufacture of fiber cement panels having omnidirectional drainage plane |
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1997
- 1997-07-09 CN CN 97111989 patent/CN1046658C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176871A (en) | 1998-03-25 |
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