Period of non-destructive testing of steel wire rope

Release time:

2021-09-24

Because the conditions of each mine are different, the use environment of the wire rope is also different, so the detection cycle of the wire rope is also different. At the same time, the lanyard stage is different, and the detection cycle is not fixed. Today, the small series summarizes the cycle of wire rope nondestructive testing for your reference.

Period of non-destructive testing of steel wire rope

Because the conditions of each mine are different, the use environment of the wire rope is also different, so the detection cycle of the wire rope is also different. At the same time, the lanyard stage is different, and the detection cycle is not fixed. Today's Baikete editor summarizedNon-destructive testing of steel wire ropeThe cycle, for your reference.

1. The new rope will be tested within one week after the lanyard, and the collected data will be saved as the original data, and the customer will be asked to issue a copy of the test report issued by the steel wire rope sample rope to the test center to understand the total breaking force of the steel wire rope and various steel wire rope parameters.

2. Please record the daily promotion amount and number of promotion times in detail.

3. Under normal circumstances, the test is carried out once a month and compared with the test data of the previous month. Look at what changes have taken place in the wire rope during this month. Analyze whether there is an increase in the number of broken wires, and compare whether the position of broken wires is more concentrated or scattered. It is tested once a month to facilitate the grasp of wire rope breakage time and the deterioration trend of wire rope damage. The purpose is to find the law of wire rope broken in the service cycle of wire rope.

4. The nondestructive testing period of steel wire rope can refer to the time when the steel wire rope broke in the past as the node. The load change of steel wire rope should be considered in the early stage, and the test should be carried out at least 3 times in the early stage.

5. When the broken wire in a twist length reaches half of the scrap standard, the detection time is shortened, and the detection period is 7 days. "Coal Mine Safety Regulations" stipulates that the ratio of the broken area of all kinds of twisted wire ropes to the total broken area of the steel wire within one lay length must be replaced if it reaches the following values:

1) The steel wire rope for lifting personnel or lifting personnel and materials is 5%.

2) 15% for tank road wire rope;

3) 10% of the wire rope specially used for lifting materials, balance wire rope, brake wire rope of fall arrester and wire rope traction belt conveyor for transporting people.

4) When there is a concentrated broken wire in a certain area, the manufacturer shall determine the time period for the next detection.

5) For the steel wire rope that has been scrapped and replaced after testing and tracking, intercept 5 m sample rope at the part with serious damage, and send it to the steel wire rope nondestructive testing center for destructive testing to verify whether the loss of tensile strength and other indicators meets the scrapping requirements.

6) According to the wire rope data of the first set of tracking detection, develop another set of wire rope detection and maintenance plan for the customer to ensure that the customerwire ropeSafe operation during normal hours of use.