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A kind of steel fiber directionally reinforced ultra-high performance concrete forming device and using method thereof

A directional reinforcement, ultra-high-performance technology, applied in the direction of ceramic molding machines, auxiliary molding equipment, manufacturing tools, etc., can solve the problems of uniform unidirectional distribution of steel fibers, high requirements for magnetic induction intensity, random distribution of steel fibers, etc., to achieve Realize directional distribution, improve the effect of directional distribution, and improve the effect of strengthening and toughening

Active Publication Date: 2018-12-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing method requires high magnetic induction intensity when controlling the directional distribution of steel fibers, and the steel fibers in the lower layer are difficult to rotate due to the pressure of the upper layer of concrete, so that some steel fibers are distributed in random directions, and most of the steel fibers cannot be uniformly unidirectional. distribution problem, and provide a steel fiber directionally reinforced ultra-high performance concrete forming device and its application method

Method used

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  • A kind of steel fiber directionally reinforced ultra-high performance concrete forming device and using method thereof

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specific Embodiment approach 1

[0010] Specific implementation mode one: combine figure 1 Description of this embodiment, a forming device for steel fiber directionally reinforced ultra-high performance concrete in this embodiment consists of a DC power supply 1, a piston 2, a push rod 3, a first switch 5, a feeding cylinder 6, a second switch 7, a cylindrical Flow channel, corner flow channel and truncated conical flow channel; described cylindrical flow channel is made up of cylindrical outer tube 8, cylindrical inner tube 9 and first coil 10; , a frustum-shaped inner cylinder 13 and a second coil 15; a baffle 11 is arranged in the corner flow passage; the cylindrical flow passage is arranged horizontally, and one end of the cylindrical flow passage is provided with a frustum-shaped flow passage. An included angle is formed between the cylindrical flow channel and the truncated conical flow channel, and the included angle is 90°~135°; a corner flow channel is set between the cylindrical flow channel and th...

specific Embodiment approach 2

[0015] Embodiment 2: The difference between this embodiment and Embodiment 1 is: the piston 2, the push rod 3, the feed cylinder 6, the cylindrical outer cylinder 8, the cylindrical inner cylinder 9, the baffle plate 11, the circular The materials of the frustum-shaped outer cylinder 12 and the frustum-shaped inner cylinder 13 are all high-strength materials that are not attracted by magnetic force. Others are the same as the first embodiment.

[0016] The high-strength materials that are not magnetically adsorbed are engineering plastics, glass, ceramics, organic glass, and the like.

specific Embodiment approach 3

[0017] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the output voltage of the DC power supply 1 is 0-30V, and the output current is 0-20A. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a molding device for directional steel fiber reinforced ultrahigh-performance concrete and an application method of the molding device and relates to the molding device for the directional steel fiber reinforced ultrahigh-performance concrete and the application method of the molding device. The invention aims to solve the problem that an existing method has high requirements on magnetic induction intensity during the control on directional distribution of steel fibers, the lower layer of steel fibers rotate hardly because of the pressure from the upper layer of concrete, so some steel fibers are distributed disorderly and most of the steel fibers cannot be uniformly distributed in one direction. The molding device for the directional steel fiber reinforced ultrahigh-performance concrete consists of a direct-current power supply, a piston, a push rod, a first switch, a feeding cylinder, a second switch, a cylindrical flow passage, a corner flow passage and a circular platform-shaped flow passage. By utilizing the effects of thrust, a magnetic field and a baffle, the molding device disclosed by the invention is capable of realizing directional distribution of the steel fibers for ultrahigh-performance concrete and is capable of improving the directional distribution effect and the pouring speed of the steel fibers. The molding device disclosed by the invention is applicable to pouring of cement base materials such as ultrahigh-performance concrete.

Description

technical field [0001] The invention relates to a forming device for steel fiber directional reinforced ultra-high performance concrete and a method for using the same. Background technique [0002] Ultra-high performance concrete is considered to be one of the latest advances in the field of modern concrete technology. It has ultra-high mechanical properties and durability, and has been widely used in roads, bridges and military engineering. As one of the important raw materials for the preparation of ultra-high performance concrete, steel fiber has a tensile strength of up to 3000MPa, which can improve the compressive strength, flexural strength and toughness of concrete. However, as special projects have higher and higher requirements for concrete flexural strength, tensile strength and toughness, the traditional preparation method of randomly and randomly distributing steel fibers in cement concrete through mechanical stirring is very important for improving the flexural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B1/52B28B17/00
CPCB28B1/523B28B17/00
Inventor 高小建黄煌煌王睿韩广帅阳华龙
Owner HARBIN INST OF TECH
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