Method for testing performance of blasting rubber protective net
A kind of technology of rubber protection, test method
Active Publication Date: 2018-06-19
HOHAI UNIV +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the material source of the rubber protective net is mainly waste tires and other types of waste rubber, the source of the material is heterogeneous, and the performance varies greatly. In addition, the binding materials such as steel wire used by the manufacturer are different, and the production process and quality management level are different. At present, the rubber protective nets produced on the market vary greatly in performance.
Many rubber protective nets are of poor quality, extremely poor durability, and even damaged after being used two or three times in blasting construction
For blasting construction units, the purchase of inferior rubber protective nets not only increases investment costs, but also buryes hidden dangers of accidents and increases the risk of accidents
At present, there is no systematic and reliable performance testing method to judge the quality of rubber protective nets, which makes it impossible for buyers to evaluate and select high-quality rubber protective nets.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] The present invention will be further described below in conjunction with specific embodiment:
[0034] Test and evaluate the rubber protective net produced by a certain manufacturer. The specific test and evaluation methods are as follows:
[0035] 1) Test sampling
[0036] Random sampling is carried out in the warehouse of the manufacturer for random inspection, and the sampling quantity is 100 rubber nets;
[0037] 2) Indicator test
[0038]Carry out the testing of various indicators, including: randomly select 10 pieces of rubber nets and dismantle them, take 5 leather strips randomly from each piece to measure the geometric size, take 10 steel wires from each piece randomly to measure the tensile strength, and use a rubber hardness tester to test the hardness , use a special rubber tensile testing machine to test the strength, take the arithmetic mean value as the index, and calculate the coefficient of variation of each index, the measured leather strip length i...
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
| Property | Measurement | Unit |
|---|---|---|
| hardness | aaaaa | aaaaa |
| tensile strength | aaaaa | aaaaa |
| coefficient of variation | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for testing performance of a blasting rubber protective net, and belongs to the technical field of engineering blasting. The method comprises the steps of material performance testing and overall performance testing, wherein material performance testing comprises testing of rubber strap size, namely, length, width and thickness, testing of tensile strength and hardness of rubber straps as well as testing of fastener strength; overall performance testing comprises testing of weight of a rubber net comprising a plurality of rubber straps and size, impact resistance and durability of the rubber net. The scientific and systematic method for testing performance of the blasting rubber protective net is provided. With the method, quality of the rubber protectivenet can be directly evaluated, and the technical blank of quality evaluation of the rubber protective net in the blasting industry is filled up. The method can guide producers to test products and construction enterprises to choose products, valuable data for protective design of engineering blasting is provided, and a data basis for blasting safety is provided.
Description
technical field [0001] The invention relates to a method for testing the performance of a blasting rubber protection net, belonging to the technical field of engineering blasting. Background technique [0002] Scatter during blasting is the most important hazard of engineering blasting, and is the culprit in most blasting injury accidents. Therefore, the policies and industry norms of industry authorities are extremely strict on the control of blasting scatter. In order to control blasting scatter, various protective devices are widely used in engineering blasting. Rubber protective net is the most widely used type of protective device. The rubber protective net for blasting is usually a protective device made by fixing rubber strips with steel wires, screws and other materials. At present, there are many manufacturers of rubber protective nets in the domestic market, all of which are workshop-style manufacturers that use manual production. Since the material source of th...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/44
CPCG01N33/445
Inventor 康强喻战江吴远林余超赵明生陶铁军李杰余红兵周建敏
Owner HOHAI UNIV