HATSCHEK PROCESS FIBER CEMENT PDF

Process Making Fiber Cement old type and improvement. Asbestos fiber cement techhology about years ago, Ludwig Hatschek made the. cement plates obtained using such processes. Background of the invention. [ ] Hatschek processes for the production of fiber cement. A Hatschek process for the production of profiled fiber cement plates is provided. The process comprises the steps of: Providing an endless fiber cement.

Author: Gardagrel Goshicage
Country: Solomon Islands
Language: English (Spanish)
Genre: Business
Published (Last): 15 May 2004
Pages: 299
PDF File Size: 16.95 Mb
ePub File Size: 5.26 Mb
ISBN: 712-6-59597-406-6
Downloads: 98360
Price: Free* [*Free Regsitration Required]
Uploader: Mezirisar

Alternatively the monolayer first provided in production direction may be the layer with the maximum width, such as the at least one monolayer of the second type of monolayers, the second and subsequent layers may gradually have decreasing widths in transversal direction, and each layer may be extended in transversal direction by all previously provided monolayers. After Production Process Composition: Fiber Reinforced Calcium Silicate Board press board is a new construction material which has been pulping, molding, compression, maintenance and so on.

As an example, the layer first provided in production direction may be the monolayer of the first type of monolayers with the smallest width, hence being the at least one monolayer with width W1. It is understood that the strip of uncured fiber cement plate where the recess is not present, hence the profile of the plate is not provided, will be cut. On this accumulator rollwhich according to the invention has a recess in axial direction along at least part of the circumference as shown in figure 2a plurality of fiber cement multilayered slab layers are accumulated by rotating the accumulator roll along its axisuntil the predefined thickness is obtained.

WO// A HATSCHEK PROCESS FOR THE PRODUCTION OF FIBER CEMENT PLATES

Water Supply and Drainage Equipment. A Hatschek process according to claim 1, wherein the recess has a depth of between 0. The uncured, profiled fiber cement plate hastchek reduced to the commercial width at both sides of the beveled edge profile, is air dried and hence a profiled fiber cement plate is provided.

The reference figures quoted below refer to the attached drawings.

Fibre cement – rooted in history

Hatschsk Hatschek process according to any one of the preceding claims, wherein the difference between said width W1 of said first type of monolayers in transverse direction and the width W2 of said second type of monolayers is at least 40 mm.

  CHANDRA TALPADE MOHANTY UNDER WESTERN EYES PDF

The Hatschek process according to claim 11, wherein the slurry is removed by spraying water onto the slurry to be removed. Method for producing mosaic panels for facings and pavements, plant for carrying out this method and flber obtained thereby. According to some embodiments, the slurry may be removed by spraying water to the slurry to be removed. The above and other characteristics, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention.

The beauty of fibre-cement as a building material is 4 fold; Fire resistant, rot resistant, malleability and low weight. Raw material Pprocessing System Raw material conveying system,raw material weighing system,pulp system ,silica grinding system,Proportioning system. Shanghai Wellink Industry Co. A Hatschek process according to any one of the preceding claims, wherein said accumulator roll having no recess in axial direction along at least 40 fibed of its circumference.

A process for producing shaped fiber cement board Hatschek process, said process comprising the steps: The profile that is given is a tapered of beveled profile at both outer sides of the profiled fiber cement plate, wherein the slope of the profile can be varied by appropriate selection of the recess profile in the accumulator roll.

Pressure sensor will indicate the press and balance of cylinder, PLC control can be set by multi mode, gear, time and walking distance. Typically rectangular parallelepiped-shaped plates are formed.

There was a problem providing the content you requested

A Hatschek process according to any one of the preceding claims, wherein said multilayered slab consists of 2 to 8 monolayers. Autoclaving and curing section. A method and a felt for forming fiber cement articles with base fabric with parallel non- woven md yarns.

This was not widely adopted except for siding products and wet-area lining sheets.

It is understood that the sequence of layers with different width may vary according to various patterns. Press Machine System There are two kinds of press machine, hatschel lift and down press, up lift is more popular.

By the time the license expired in the industry was established. The thicknesses of each of the monolayers may vary from 0. Bitumen Shingles Cedar Shingles. It is an object of the present invention to provide a hatscheek for providing profiled fiber cement proecss, having tapered or beveled edges at at least two parallel sides of the plate, which has less deviation in density across the plate in transversal direction.

  GLYPHIS GANGETICUS PDF

Since many imitators also were founded who did not hatachek the Eternit license. The layers are built up to the desired thickness and then removed and if necessary compressed.

EP EPA1 en procss It is to be noticed that the term “comprising”, used in the claims, should not be interpreted as being restricted to the means listed thereafter; it does not exclude other elements or steps. Since silica, even when ground, is much cheaper than cement, and since the autoclave curing time is much less than the air cured curing time, this became a common, but by no means universal manufacturing method.

He combined, after 7 years of experimenting, cellulose, reinforcing fibres and cement in solution in water.

Fibre cement is however porous thereby making it ideal for use in high humidity climates. Throughout this specification, reference to “one embodiment” or “an embodiment” are made.

According to some embodiments, the n additional monolayers may be monolayers of the second type of monolayers. Because of its good features like less building cycle, less energy, notable economic benefit, fiber reinforced cement board are favorable all over the world.

A cross section of the endless fiber cement multilayered slabobtained on the transport device is shown in figure 3. With such strengths you would think fibre cement should be used everywhere, and you would be right.

Fibre cement – Cembrit

Autoclave And Drying Board blanket is sent to autoclave to be steamed by winch after demoulding, steaming process include pressure increasing, pressure stablization and pressure release, pressure stablization is most important, which lasts hous, pressure 0. As such, the monolayer build on this sieve will not build along the covered zones andhence resulting in the fact cemdnt a monolayer with smaller width W1 will be formed.

Fibre cement – a building material with many strenghts Man made PV A fibres have long since replaced the mineral fibre, and other solids are now added to the slurry to furnish differe nt performance characteristics. The density and composition of the slurry used to provide all four monolayers are identical.