A process of polyvinyl chloride (PVC) cladding wood includes step 1, putting a PVC mixture into a high-speed mixer, and then cooling through a rubber powder cooler to obtain a powder; step 2, adding the powder to a granulator for granulation to produce PVC particles with uniform particle size; step 3, heating a profile to be cladded at an average speed in an extruder, melting with the PVC particles, and extruding out by a co-extrusion die to form a profile with PVC material coating on a surface of the profile; step 4, after cooling by a cooling tank, forming and tracting, cutting; the process of PVC cladding wood is completed. The process of PVC cladding wood involved in the present invention attaches the PVC coating to the outer surface of a pure wood or a wood-like profile.

A process of polyvinyl chloride (PVC) cladding wood includes step 1, putting a PVC mixture into a high-speed mixer, and then cooling through a rubber powder cooler to obtain a powder; step 2, adding the powder to a granulator for granulation to produce PVC particles with uniform particle size; step 3, heating a profile to be cladded at an average speed in an extruder, melting with the PVC particles, and extruding out by a co-extrusion die to form a profile with PVC material coating on a surface of the profile; step 4, after cooling by a cooling tank, forming and tracting, cutting; the process of PVC cladding wood is completed. The process of PVC cladding wood involved in the present invention attaches the PVC coating to the outer surface of a pure wood or a wood-like profile.

A method and production plant for producing pre-insulated tubular rods, includes: feeding an endless medium tube to a transport unit of a production plant, transporting the endless medium tube in the axial direction, applying a foamed insulating layer to the outer circumference of the endless medium tube during transport of the endless medium tube, applying an outer layer to the outer circumference of the insulating layer, dividing the pre-insulated endless tube into individual pre-insulated tubular rods, wherein individual tubular medium rods are fed to the production plant and are connected to one another to form the endless medium tube.

A method and production plant for producing pre-insulated tubular rods, includes: feeding an endless medium tube to a transport unit of a production plant, transporting the endless medium tube in the axial direction, applying a foamed insulating layer to the outer circumference of the endless medium tube during transport of the endless medium tube, applying an outer layer to the outer circumference of the insulating layer, dividing the pre-insulated endless tube into individual pre-insulated tubular rods, wherein individual tubular medium rods are fed to the production plant and are connected to one another to form the endless medium tube.

The method for manufacturing an individually sheathed strand comprises: conveying a group of metal wires through a die; upstream of the die, applying a first filler product to at least a first portion of the strand; upstream of the die, applying a second filler product to at least a second portion of the strand distinct from the first portion; and extruding a plastic around the group of metal wires passing through the die, so as to envelop the group of metal wires covered with the first and second filler products in a continuous sheath formed of the extruded plastic. The second filler product has greater adhesion to the group of metal wires than the first filler product.

The method for manufacturing an individually sheathed strand comprises: conveying a group of metal wires through a die; upstream of the die, applying a first filler product to at least a first portion of the strand; upstream of the die, applying a second filler product to at least a second portion of the strand distinct from the first portion; and extruding a plastic around the group of metal wires passing through the die, so as to envelop the group of metal wires covered with the first and second filler products in a continuous sheath formed of the extruded plastic. The second filler product has greater adhesion to the group of metal wires than the first filler product.

Articles may include at least non-PFAS elastomers and additives. The non-PFAS elastomers may include at least one of polyacrylate elastomer (ACM), polyethylene acrylate elastomer (AEM), ethylene propylene diene monomers (EPDM) elastomer, ethylene propylene monomers (EPM), nitrile butadiene rubbers (NBR) and hydrogenated nitrile butadiene rubbers (HNBR) elastomer. Under a six-hour remote NF.sub.3 plasma exposure at 150 C., the non-PFAS elastomers may have a weight change less than or equal to about 2%. The additives may include fillers, which include at least one of carbon black, silicon carbide, silica, barium sulfate, carbon, clay, talc, metallic fillers, metallic nitrides, and/or organic fillers. The organic fillers may include polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), or nylon. The non-PFAS elastomer may have a weight percentage from about 25% to about 99%. The additives have a weight percentage from about 1% to about 67%.

Articles may include at least non-PFAS elastomers and additives. The non-PFAS elastomers may include at least one of polyacrylate elastomer (ACM), polyethylene acrylate elastomer (AEM), ethylene propylene diene monomers (EPDM) elastomer, ethylene propylene monomers (EPM), nitrile butadiene rubbers (NBR) and hydrogenated nitrile butadiene rubbers (HNBR) elastomer. Under a six-hour remote NF.sub.3 plasma exposure at 150 C., the non-PFAS elastomers may have a weight change less than or equal to about 2%. The additives may include fillers, which include at least one of carbon black, silicon carbide, silica, barium sulfate, carbon, clay, talc, metallic fillers, metallic nitrides, and/or organic fillers. The organic fillers may include polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), or nylon. The non-PFAS elastomer may have a weight percentage from about 25% to about 99%. The additives have a weight percentage from about 1% to about 67%.

A housing manufacturing method is provided. The housing manufacturing method includes the following steps. First, a plant carbon fiber plate is provided. Subsequently, a stamping process is applied to the plant carbon fiber plate to form a carbon fiber housing. Then a decorative surface is formed on the carbon fiber housing through an in-mold injection molding process. Steps of manufacturing the plant carbon fiber plate are as follows. First, a plant raw material is provided. Subsequently, a first low-temperature carbonization process is applied to the plant raw material to form a carbonized plant raw material. Then a resin material is added to form a carbonized plant mixed material. Next, a second low-temperature carbonization process is applied to the carbonized plant mixed material to generate a plant carbon fiber raw material. Then the plant carbon fiber raw material is extruded, spun, and shaped to form a plant carbon fiber plate.

A housing manufacturing method is provided. The housing manufacturing method includes the following steps. First, a plant carbon fiber plate is provided. Subsequently, a stamping process is applied to the plant carbon fiber plate to form a carbon fiber housing. Then a decorative surface is formed on the carbon fiber housing through an in-mold injection molding process. Steps of manufacturing the plant carbon fiber plate are as follows. First, a plant raw material is provided. Subsequently, a first low-temperature carbonization process is applied to the plant raw material to form a carbonized plant raw material. Then a resin material is added to form a carbonized plant mixed material. Next, a second low-temperature carbonization process is applied to the carbonized plant mixed material to generate a plant carbon fiber raw material. Then the plant carbon fiber raw material is extruded, spun, and shaped to form a plant carbon fiber plate.