Patent classifications
B28B11/12
Method for the production of gypsum-based boards and stucco slurry comprising non-pregelatinized migratory starch for use therewith
A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: •forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; •casting the mixture in a continuous band; •maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; •cutting the band to form one or more wet panel precursors; and •drying the wet panel precursor to form one or more gypsum-based panels. •The weight ratio of water to stucco in the mixture is less than 0.7; •the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; •the starch is present in the mixture in an amount of over 3 wt % relative to the stucco; •the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; •the fluidizer is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.
Method for the production of gypsum-based boards and stucco slurry comprising non-pregelatinized migratory starch for use therewith
A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: •forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; •casting the mixture in a continuous band; •maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; •cutting the band to form one or more wet panel precursors; and •drying the wet panel precursor to form one or more gypsum-based panels. •The weight ratio of water to stucco in the mixture is less than 0.7; •the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; •the starch is present in the mixture in an amount of over 3 wt % relative to the stucco; •the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; •the fluidizer is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.
CERAMIC STRUCTURE AND METHOD MANUFACTURING CERAMIC STRUCTURE
A heater includes a base body and an internal conductor. The base body is made of ceramic. The internal conductor is located inside the base body and includes a connection portion. The base body includes a space extending from the connection portion to a lower surface of the base body. The space includes a first space and a second space. The first space contacts with the connection portion. The second space connects the first space and an outer side of the lower surface of the base body, and is smaller than the first space in a planar perspective of the lower surface of the base body.
Lightweight, reduced density fire rated gypsum panels
A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.
Lightweight, reduced density fire rated gypsum panels
A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.
Median barrier finishing machine
Various embodiments for a median barrier finishing machine are described. A median barrier finishing machine may include a housing configured to encapsulate at least a portion of a median barrier, where the housing comprises a first vertical wall, a second vertical wall, and a horizontal wall. The median barrier finishing machine may include at least one adjustable member configured to couple the housing to the vehicle and retain the housing a predetermined distance relative to the vehicle while the vehicle is in motion. Further, the median barrier finishing machine may include at least one finishing device disposed within the housing, where the at least one finishing device is configured to contact a surface of a median barrier at least partially positioned within the housing and treat the surface as the vehicle moves the housing along a length of the median barrier.
Median barrier finishing machine
Various embodiments for a median barrier finishing machine are described. A median barrier finishing machine may include a housing configured to encapsulate at least a portion of a median barrier, where the housing comprises a first vertical wall, a second vertical wall, and a horizontal wall. The median barrier finishing machine may include at least one adjustable member configured to couple the housing to the vehicle and retain the housing a predetermined distance relative to the vehicle while the vehicle is in motion. Further, the median barrier finishing machine may include at least one finishing device disposed within the housing, where the at least one finishing device is configured to contact a surface of a median barrier at least partially positioned within the housing and treat the surface as the vehicle moves the housing along a length of the median barrier.
HONEYCOMB STRUCTURE AND METHOD FOR PRODUCING SAME
A honeycomb structure 1 includes a honeycomb structure portion comprising: an outer peripheral wall 20; a partition wall 21 arranged on an inner side of the outer peripheral wall 20, the partition wall 21 defining a plurality of cells 21a each extending from one end face to other end face to form a flow path, wherein the honeycomb structure 1 further includes: a plurality of slits 3 extending radially inward from an outer peripheral surface 1a of the honeycomb structure 1 and extending in an extending direction of the cells 21a; and a filling material 4 filled in the slits 3, and wherein, when a difference between a width Y of the filling material 4 and a width X of each of the slits 3, represented by the following equation (1), is determined for each of the slits 3, a difference between a maximum value A of the difference and a minimum value B of the difference, represented by the following equation (2), is 0.4 mm or less:
(Y−X) (1)
(A−B) (2),
in which equation (1), X represents the width of each of the slits 3 on the outer peripheral surface 1a of the honeycomb structure, and Y represents the width of the filling material 4 when the filling material 4 is viewed from the outside in the radial direction of the honeycomb structure 1.
INTEGRAL CERAMIC MATRIX COMPOSITE FASTENER WITH POLYMER RIGIDIZATION
A gas turbine engine component includes a gas turbine engine component body formed of a ceramic matrix composite material having at least one fastener integrally formed with the gas turbine engine component body as a single-piece structure. The gas turbine engine component body initially comprises a rigidized preform structure formed from a polymer based material. The at least one fastener connects the gas turbine engine component body to an engine support structure.
INTEGRAL CERAMIC MATRIX COMPOSITE FASTENER WITH POLYMER RIGIDIZATION
A gas turbine engine component includes a gas turbine engine component body formed of a ceramic matrix composite material having at least one fastener integrally formed with the gas turbine engine component body as a single-piece structure. The gas turbine engine component body initially comprises a rigidized preform structure formed from a polymer based material. The at least one fastener connects the gas turbine engine component body to an engine support structure.