38results about How to "Reduce demoulding resistance" patented technology

The invention provides a polyphenylene sulfide resin composition including: 1 to 100 parts by weight of an olefin elastomer (B); and 0.01 to 10 parts by weight of a carboxylic acid amide wax mixture (C), relative to 100 parts by weight of a polyphenylene sulfide resin (A), wherein the carboxylic acid amide wax mixture (C) is obtained by adding 0.01 to 5 parts by weight of an antioxidant to 100 parts by weight of a carboxylic acid amide wax produced by reaction of a higher aliphatic monocarboxylic acid, a polybasic acid and a diamine.

Provided is an injection molding method for a resin substrate, wherein: through-holes are provided on a plate-shaped substrate so that they are penetrated from one surface of the substrate in the direction of the other surface in a way such that the diameter of the hole gradually becomes smaller; and micro-passages that connect to the through-holes are provided on the other surface of the substrate. A cavity is formed by joining a first molding die that forms one surface with a second molding die that forms the other surface. One part of the first molding die that forms the through-holes comprises taper pins that protrude from the first molding die towards the second molding die. The substrate is formed by filling the cavity with resin material, and the substrate is released from the second molding die by separating the first molding die from the second molding die. By pushing out the inner walls of the through-holes with the taper pins that are projected further towards the second molding die, the substrate is released from the first molding die.

A flexible-pier horizontal separation seam construction method and a construction apparatus therefor. The flexible-pier horizontal separation seam construction apparatus (1) comprises a combined drawing plate. The combined drawing plate comprises s bottom drawing plate (2), a hard foam plate (3), edge sealing drawing plate (4), and a top drawing plate (5); the hard foam plate (3) is located above the bottom drawing plate (2) and adjacently connected to the bottom drawing plate (2); a first side surface (31) of the hard foam plate (3) is flushed with a second side surface (21) of the bottom drawing plate (2); the edge sealing drawing plate (4) is located above the bottom drawing plate (2) and adjacently connected to the bottom drawing plate (2); a third side surface (41) of the edge sealing drawing plate (4) is adjacently connected to a fourth side surface (32) of the hard foam plate (3); the fourth side surface (32) is provided opposite to the second side surface (21); the top drawing plate (5) is located above the hard foam plate (3) and the edge sealing drawing plate (4) and adjacently connected to the hard foam plate (3) and the edge sealing drawing plate (4) respectively; a fifth side surface (51) of the top drawing plate (5) is flush with the first side surface (31). Also provided is a construction method for the construction apparatus. The flexible-pier horizontal separation seam construction method and the construction apparatus therefor both have the advantages of high seaming depth, high seaming accuracy, and good seaming quality.

The invention discloses a wall building formwork applicable to intelligent construction of a vertical shaft. The outer surface of the formwork is coated with a Teflon coating; a main body comprises a core frame cylinder, curve sliding rails and segmental sliding forms, and formwork supporting and releasing actions of the segmental sliding forms are realized by the aid of radial contraction indirectly produced by vertical traveling of the segmental sliding forms in the longitudinal direction through the curve sliding rails. Leveling and centering of the formwork are subjected to servo adjustment by corresponding hydraulic oil cylinders after pose determination by sensors, and circularity regulation is not needed. The formwork has basic function of a concrete pouring envelop structure as well as capacity of monitoring and evaluating the quality and an evolution process of cast-in-place concrete by means of setting of pressure, temperature, moisture and ultrasonic measurement points on the outer surface of the formwork. The formwork has the characteristics of being reasonable in structure, reliable in work, quick in action and capable of performing automatic centering and leveling and evaluating the pouring quality of the concrete in real time, and realizes intelligence of the construction process of the vertical shaft.

The invention belongs to the technical field of automobile part casting processing, and particularly relates to a demoulding device which comprises a cylindrical mold body which is rotationally arranged on a frame along a horizontal axis. The inner annular surface of the cylindrical mold body is conical, the diameter of a first end of an inner annular surface of the cylindrical mold body is smaller than that of a second end, a first end plate is arranged at the first end of the inner annular surface of the cylindrical mold body, a second end plate is arranged at the second end of the inner annular surface of the cylindrical mold body, each of the first end plate and the second end plate is of an annular structure, and the first end plate and the second end plate are in sliding fit with thecylindrical die body in the axial direction of the cylindrical die body; and a clamping claw capable of opening and closing in the radial direction of the cylindrical die body and moving in the axialdirection of the cylindrical die body is arranged in a central hole of the first end plate. The clamping claw can support the inner wall of a cylinder sleeve after the cylinder sleeve is formed, so that an inner coating of a mold is prevented from being damaged due to friction between the outer wall of the cylinder sleeve and the bottom surface of the inner wall of the cylindrical mold body during demoulding, and demoulding resistance is reduced.

The invention discloses an automatic die-filling and die-stripping device, which comprises a framework, wherein a molded skeleton is arranged in the framework, a die cavity which is formed by splicing at least two movable templates is arranged in the skeleton, the top of the skeleton is provided with a pressure block and a resilient cushion block, the position, adjacent to the upper end, of the skeleton is provided with a positioning oblique guide groove which is inclined inwards and upwards, the position, adjacent to the bottom, of the skeleton is provided with a depression bar with a corresponding angle; the position, adjacent to the upper end, of the movable template is provided with a sliding limiting guide block which is matched with the positioning oblique guide groove; a corresponding angle is formed between sliding limiting guide block and the positioning oblique guide groove, and the position, adjacent to the bottom, of the movable template is provided with a positioning cushion block which is matched with the depression bar; and a corresponding angle is formed between positioning cushion block and the depression bar. By adopting the automatic die-filling and die-stripping device, multiple concrete prefabricated members can be produced in one step and integrally demoulded in one step. The automatic die-filling and die-stripping device is simple in structure, the machine is used for substituting the manual steps for installing the die, stripping the die and the like, the labor production efficiency can be greatly improved, the completeness of the concrete prefabricated member can be guaranteed, the rejected products can be reduced, and the labor intensity of workers can be alleviated.