TH65476A - Methods of producing gypsum sheets with reduced weight - Google Patents

Abstract

DC60 (12/01/47) The invention provides a method of producing a reduced weight gypsum board consisting of a core. High strength gypsum And has excellent adhesion properties of the gypsum core with the base paper. For gypsum sheets Where, according to the above method, the pore size in the gypsum core of the product can be adjusted. Gypsum sheets can be reduced to the desired range within a short time and at low cost. Where, although the type and composition ratio of the gypsum raw materials varies, Method of production Gypsum sheets with reduced weight Where the pores of the predetermined size are distributed in the gypsum core. Including the process of blowing air into the foaming agent to produce foam, mixing the foam into Kneaded material consisting of calcined gypsum and water To create a sticky substance of Foam gypsum, pouring a sticky substance of gypsum foam into the cavity between the paper. As the top and bottom bases of the gypsum board, the paper-based forming and the viscose of the Gypsum in the form of foam has a sheet shape, roughly cut out. And later making the part that has a picture A dry sheet And cutting the sheets and dried into a product of the desired size. Where the method follows a process of adding a pore sizing agent used to adjust the size of the The foam is distributed in a gypsum thickener that is pre-formed foam. Into a solution that is Foam generating agent stock and solution mixer that is somehow the foam building agent stock. One thing and water In order to obtain a foaming agent for the production of foam of the required size, the invention provides a method for the production of reduced weight gypsum board, which is used to produce the required size of foam. Including gypsum core With properties of high strength And excellent adhesion of the gypsum core to the base paper for the gypsum board, according to the method, it is possible to adjust the size of the pores in the gypsum core of the product. Gypsum sheets can be reduced in weight to the desired range in a short time and at a low cost even though the type and mix ratio of gypsum raw materials varies. Method of production Gypsum sheets with reduced weight Where the pores of the predetermined size are distributed in the gypsum core. This includes the process of blowing air into the foaming agent in order to produce foam. Mixing foam into The kneaded material contains calcined gypsum and water. To obtain a gypsum slurry, test the foam gypsum into the recess between the top and bottom base paper of the gypsum board. M, Trimming the base paper shape and slurry of gypsum top and bottom of gypsum board. The trimming of the base paper and the slurry of the foam gypsum into sheet shape, rough cutting and subsequent drying of the sheet shape. Dry and trimmed sheet cutting The shape is then released into a product by size. Where the method is further integrated with the additive process Preliminary sizing of pore for sizing the foam distributed in the gypsum slurry. In the form of foam into one stock solution in the stock solution of the foam agent and its mixtures A stock solution of foaming agent and water. To obtain foam forming agent in order to produce foam of the required size ---------------- This invention provides a method of gypsum board production that Weight loss that contains the core High strength gypsum And has excellent adhesion properties of the gypsum core with the base paper. For gypsum sheets Where, according to the above method, the pore size in the gypsum core of the product can be adjusted. Gypsum sheets can be reduced to the desired range within a short time and at low cost. Where, although the type and composition ratio of the gypsum raw materials varies, Method of production Gypsum sheets with reduced weight Where the pores of the predetermined size are distributed in the gypsum core. Including the process of blowing air into the foaming agent to produce foam, mixing the foam into Kneaded material consisting of calcined gypsum and water To create a sticky substance of Foam gypsum, pouring a sticky substance of gypsum foam into the cavity between the paper. As the top and bottom bases of the gypsum board, the paper-based forming and the viscose of the Gypsum in the form of foam to form a sheet, roughly cut out. And later making the part that has a picture A dry sheet And cutting the sheets and dried into a product of the desired size. Where the method follows a process of adding a pore sizing agent used to adjust the size of the The foam is distributed in a gypsum thickener that is pre-formed foam. Into a solution that is Foam generating agent stock and solution mixer that is somehow the foam building agent stock. One thing and water In order to obtain foam generating agent for producing foam of the required size.

Claims (6)

Disclaimer (all) which will not appear on the announcement page: EDIT 16/12/2016 1. Method of producing gypsum sheets with reduced weight. Where the porosity of the specified size Before being distributed in the gypsum core This includes the steps of: blowing air into the foaming agent. To produce a foam; Mixing the foam into the massaged material containing calcined gypsum and water. To get the slurry of gypsum That is in the form of a foam; Testing of foam gypsum into the channel between the top base paper and The bottom of the gypsum board; Contour trimming of base paper and slurry of foam gypsum into sheet shapes; Rough cut And to dry the shaped sheets in subsequent order; And cutting dry and trimmed sheets into size-based products; Where the assembly method is further combined with a preliminary pore size modifier step For sizing the foam dispersed in the gypsum slurry in the foam form into the solution. Stock one of solution Stock of foaming agent and mixtures Foaming agent stock and water to produce foam agent to produce foam of the required size, at The pore size modifier contains at least one substance that was selected from the Contains a foam-enhancing agent in gypsum slab in foam form, and where foam-enhancing agent in gypsum-foamed slurry contains One is At the very least, it was selected from a group containing water-soluble acidic, strong acid and water-soluble strong alkaline substances. 2. Method of production of reduced weight gypsum board. Down as requested in claim 1, where the substance for increasing the size of the foam in the gypsum slurry in the form of foam contains one substance. The lowest was selected from the group containing aluminum sulfate, aluminum potassium sulfate, ammonium ammonium sulfate, ferric chalfate, Polyphenic sulfate, sulfuric acid, sulfamic acid, sodium hydroxide and potassium hydroxide. 3. Method of producing gypsum sheet at reduced weight. down Where the porosity of the predetermined size Will be distributed in the gypsum core This includes the steps of: blowing air into the foaming agent. In order to produce a foam; Mixing the foam into the massaged material containing calcined gypsum and water. In order to be a slory Of gypsum in foam form; Testing of foam gypsum into the channel between the top base paper and The bottom of the gypsum board; Contour trimming of base paper and slurry of foam gypsum into sheet shapes; Rough cut And to dry the shaped sheets in subsequent order; And cutting dry and trimmed sheets into size-based products; Where is the method It is further included with a preliminary step of adding a porous sizing agent for sizing. Of foam dispersed in slurry of foam gypsum into one stock solution Solution Stock of Foaming Agent and Mixture Solution Stock of Foaming Agent and Water to obtain foaming agent in order to produce foam of the required size; Where the pore size modifier contains at least one substance selected from the Contains foam reducing agent in gypsum slurry in foam form and additives for Reducing the size of the foam in the gypsum slab in the foam form, and where the foam reducing agent in the foam gypsum slab contains surfactants. One of the least selected types was from a group containing sulfoxinate surfactants, sarcosinate surfactants, alkylbane surfactants. Sine sulfonate, alkane sulfonate surfactant and alkyl betaine surfactant. 4. Method of production of gypsum sheet with Reduced weight as requested in any of the claims 1 to 3 Where the amount of pore sizing agent in the foam agent is 0.00001 parts by weight up to 0.005 parts by weight. Per 100 parts of calcined gypsum by weight ---------------- 1. A method of producing gypsum board with reduced weight, where pores of a specified size are Distributed in the gypsum core Where it consists of the steps of: blowing air into a foaming agent to produce foam; Mixing the foam into the kneaded material consisting of calcined gypsum and water to form a foam-like thickener of gypsum; Pouring a foam gypsum slurry into the space between the base paper. Above and below the gypsum board; Forming paper-based bases and foam-based gypsum cohesives into sheet shapes; Rough cutting and subsequent drying of the flap-shaped parts; And cutting of such shaped and dried parts into a product of the prescribed size; Where the method follows the initial pore sizing agent process. In order to adjust the size of the foam dispersed in the gypsum thickener in the foam form to the stock solvent of the foaming agent and the stock solution mixtures. Agent build Any part foam and water In order to form a foam forming agent to be used to create foam of size. As required 2. The method of producing gypsum sheets with reduced weight as described in Clause 1, where the agent The sizing of the pore will contain at least one substance selected from the containing group. Foam-enhancing agent in foam-based gypsum thickener And the foam reducing agent In gypsum thickener in foam form 3. Method of producing gypsum sheets with reduced weight as described in Clause 2, where the agent Increase the size of the foam in the gypsum thickener in the foam form contains one substance. The lowest was selected from a group containing water-soluble acids, strong acids and most Strong alkaline soluble in water 4. Method of manufacturing gypsum sheets with reduced weight as described in Clause 2, where the agent Increase the size of the foam in the gypsum thickener in the foam form contains one substance. The least selected were from groups containing aluminum sulfate, aluminum potassium sulfate, ammonium ammonium sulfate, ferric sulfate, Polyphenic Sulfate, Sulfuric Acid, Sulfamic Acid, Sodium Hydroxide And potassium hydroxide 5. Method of producing gypsum sheets with reduced weight as described in Clause 2, where the agent Reducing the size of the foam In the gypsum viscous foam, the foam contains one substance. The minimum was selected from a group consisting of sulfoxinate surface reagent, sarcosinate type surface reagent, and sulphoxinate surface reagent. Alkyl Benzene Sulfonates, Alkyl Sulfonate Type Agents and Surface React Agents Alkylbiben type 6. Method of producing gypsum sheets with reduced weight as stated in Clause 1, where the quantity The pore sizing agent in the foaming agent is 0.00001 by weight to 0.005 part by weight per 100 part by weight of the sintered gypsum.