Unlock instant, AI-driven research and patent intelligence for your innovation.

A device and method for testing impact toughness of materials

A technology of impact toughness and punch, which is applied in the field of material impact toughness devices, can solve the problems of bulky size and the inability to adjust the initial impact energy arbitrarily, and achieve the effect of small size, large degree of freedom in energy adjustment range, and simple structure

Active Publication Date: 2014-10-15
HARBIN INST OF TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a device and method for testing the impact toughness of materials, so as to solve the problem that the existing pendulum impact testing machine is bulky and the initial impact energy cannot be adjusted arbitrarily

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A device and method for testing impact toughness of materials
  • A device and method for testing impact toughness of materials
  • A device and method for testing impact toughness of materials

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] Specific implementation mode one: combine figure 1 and figure 2 Explain, a device for testing the impact toughness of materials in this embodiment, the device includes a base 1, a sample support frame 2, a guide seat 5, a cylinder 6, a spring 7, a punch 8, a rigid support plate 9, and a driving piece 10. Coil 11, rubber pad 12 and top cover 13;

[0031] The lower end of the cylinder 6 is fixedly connected to the upper end surface of the base 1, the guide seat 5 is fixed in the middle of the cylinder 6 (threaded connection is adopted, the guide seat 5 plays a guiding role during the movement of the punch 8), and the rigid support plate 9 Located on the upper end surface of the punch 8 and the two are fixedly connected, the upper end surface of the rigid support plate 9 is fixedly connected with a drive piece 10, and the drive piece 10, the rigid support plate 9 and the punch 8 are slidably fitted with the cylinder 6 (in the cylinder 6 inner up and down movement), the ...

specific Embodiment approach 2

[0034] Specific implementation mode two: combination figure 1 Explain that the coil 11 described in this embodiment is a flat coil, the wire of the coil 11 is a copper wire, the cross section of the copper wire is rectangular, there is a gap between two adjacent copper wires, and a high voltage is used between the copper wires and the copper wires. Insulation cladding separates. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

specific Embodiment approach 3

[0035] Specific implementation mode three: combination figure 1 Note that the driving piece 10 in this embodiment is a copper plate, and the thickness of the copper plate is 5mm˜8mm. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a device and a method for testing impact toughness of a material and aims to solve the problems that the conventional pendulum bob type experimental impact machine is huge in size and the initial impact energy cannot be optionally controlled. According to the device, a cylinder is fixedly connected with the base; a guide seat is fixed in the middle inside the cylinder; a rigid supporting plate is fixed on an upper end face of a punch; a driving piece is fixed on an upper end face of the rigid supporting plate; a spring is sleeved on the outer side of the punch; a coil is arranged on an upper end face of the driving piece and is fixed in the cylinder; two lead sections of the coil are connected in series with a high-voltage pulse capacitor bank through a high-voltage switch K; a rubber base plate is arranged on the upper surface of the coil; a sample support frame is arranged on the upper end face of the base and is positioned just under the punch. The high-voltage pulse capacitor bank is completely charged, and the high-voltage switch is connected, so that transient strong current flows through the coil, the driving piece drives the rigid supporting plate and the punch to move downwards at a high speed, and the notch sample is deformed and broken due to the impact function of the punch. The device is used for testing impact toughness of the material.

Description

technical field [0001] The invention relates to a device and method for impact toughness of materials, which are realized by pulsed magnetic field force. technical background [0002] In actual construction machinery, many components are often subjected to impact loads. Shock wave loads should be avoided in machine design. However, due to the characteristics of mechanical structure or operation, impact loads are difficult to avoid. In order to understand the performance of materials and components under impact loads , an impact test must be performed. [0003] Impact test is an experiment to study the resistance of materials to dynamic loads. Impact tests can be used to identify the quality of materials, judge the suitability of metallurgy, processing and heat treatment procedures, and determine the ductile-brittle transition trend and transition temperature of materials. Sensitivity of metallic materials to notches. [0004] The impact test measures the impact absorption ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/317
Inventor 于海平崔俊佳苏海徐俊瑞范志松李春峰
Owner HARBIN INST OF TECH