What does the inspection report of the wire rope look like

Take a look at the GB T 2104 Wire Rope Packaging, Marking and Quality Book, which has a standardized template.

The wire rope testing items mainly include twisting, wire diameter, rope warp, tensile strength, oiling, repeated bending test, torsion times, whole rope breakage, metal cross-sectional area loss, local damage, coating thickness and other items, it is worth mentioning that the wire rope friction liner is also best tested, the specific test items are density, hardness, tensile elastic modulus, elongation at break, compressive modulus, bending stress, bending strength, compressive strength, impact strength, tensile strength, wear, friction coefficient, wear rate, wear, and other items.

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Material and product testing.

Tensile properties, torsion test, bending performance, yield strength, tensile strength, elongation after breaking, total elongation under maximum force, impact, hardness, breaking test, antistatic, flame retardant of non-metallic materials, antistatic test, sintered brick, conveyor belt joint tensile test, hair dryer cloth, braided mesh, cable, conveyor belt, bolt chain link, wire rope ** flaw detection, compacted strand wire rope, mining wire rope, elevator wire rope, petroleum wire rope, conveyor belt wire rope, control wire rope, aviation wire rope, Ropeway wire rope, port machinery wire rope, steel wire, steel strand, steel cord, aluminum strand, aluminum clad wire, copper clad wire, bolts, nuts, metal bellows, plastic bellows, double-wall corrugated pipes, perforated corrugated pipes, flexible permeable pipes, plastic blind pipes, PVC pipes, shackles, slings, etc.

Non-destructive testing. Ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, radiographic flaw detection, eddy current flaw detection, phased array imaging flaw detection.

Electrical test and meteorological lightning protection detection.

6kV-220kV insulation labor protection equipment inspection, high and low voltage electrical test, power grid harmonic, capacitance current, stray current test, lightning protection detection of various structures, UPS power supply charging and discharging test, photovoltaic power station testing, subway high-voltage equipment testing, etc.

Workplace sensor detection and inspection.

Combustible gas: hydrogen, carbon monoxide, methane, ethane, propane, butane, ethylene, propylene, butylene, acetylene, propylene, butylene, hydrogen sulfide, phosphine, pentane, pentene, benzene, coal gas, natural gas, oxygen, carbon dioxide, nitrogen, methanol, butanol, dimethyl ether, ether, acetic acid, acetone, propylene oxide, ethylene oxide, ethyl acetate, ethylbenzene, p-dioxane, isobutane, tetrahydrofuran, methoxyethanol, nitromethane, nitrobenzene, phenylsane, chlorobenzene, aniline, propanol, xylene, toluene, Dichloroethane, ethylene chloride, dichloropropane, acetaldehyde, acetylacetone, benzoic acid.

Toxic and harmful gases: chlorine, ammonia, nitrogen oxides, phosgene, hydrogen fluoride, sulfur dioxide, sulfur trioxide, dimethyl sulfate, nitrogen, methane, ethane, ethylene, carbon monoxide, nitrobenzene vapor, hydrogen cyanide, hydrogen sulfide, formaldehyde.

1. Check whether there is corrosion: The wire rope is made of stainless steel wire or high carbon steel.

Rolled, but if the quality of the wire rope is not good, if the manufacturer replaces the wire with iron wire, it will rust. Therefore, first of all, it is necessary to check whether the wire rope is rusty every day, and if it is found, it must not only be stopped, but also reported to the production department and purchasing department.

2. Check the degree of wearIn the process of use, the wire rope will be worn, the diameter will change, the maintainer should often measure the diameter of each section, especially the wear and tear of the easy wear section, if the diameter becomes much larger, more than 5% will be reported and discontinued.

3. Whether there is broken wire and abrasion:If the wire rope is used for a long time, the wire will be broken and sharpened, and if the wire is seriously broken, it needs to be stopped immediately. There are criteria for judgment, generally as:

The wear of the outer steel wire does not exceed 40% of its diameter; No more than 2 pieces of cross-twisted wire rope within the range of 6d and no more than 4 pieces within the range of 30d range; No more than 1 wire rope is within 6d of the length of the twisted wire rope. No more than 2 pieces within 30 days. The specific instructions or national standards shall prevail.

4. Check the fastening at both endsThe wire rope will be connected to the hook, and it is important to check the fastening of the connected place and the firmness of the hook when inspecting.

Precautions for the use of wire rope.

The length of the wire rope should be able to meet the requirements when the hook is in the lowest working position, and the wire rope is also wound with 2 3 turns of load reduction ring on the drum to avoid the rope tail pressure plate directly bearing the tension.

When the wire rope needs to be cut before use, it can be cut with a special guillotine, hacksaw or flame. Before cutting, tie the wire firmly with thin wire on both sides of the cut to prevent the steel wire from loosening, and the steel wire should be carefully checked before use to confirm that the performance specifications of the wire rope meet the design requirements.

The wire rope export is necessary to do a quality inspection report, only digging the mountain to meet the normal standard range, the product is considered safe, so we must judge the old must do the quality inspection report. ​

The safety factor of wire rope is an important safety technical index to measure and improve the safety performance and safety status of wire rope. In order to ensure the safe use of wire ropes, when selecting and using wire ropes, it is necessary to ensure that its safety factor is not less than the minimum value specified in the Regulations. ​

The wire rope inspection standards are:

The ratio of the cross-sectional area of the steel wire to the total area of the steel wire shall not be used for lifting personnel, and shall not be used for lifting materials. When the ratio of the cross-sectional area of unqualified steel wire and the total area of steel rope reaches 25%, this wire rope must be replaced.

All kinds of stranded wire ropes must be replaced when the ratio of the wire section area and the total area of the wire within a twist distance reaches the following values, and the wire rope used for lifting personnel or lifting personnel and materials is 5%. The wire rope for lifting materials, the balance wire rope, the brake wire rope for the fall preventer, the wire rope that doubles as a wire rope for transporting people, and the wire rope for the traction belt conveyor are 25%.

The wire rope for lifting materials, the balance wire rope, the brake wire rope of the fall arrester and the wire rope that doubles as a wire rope for transporting people, and the wire rope for the traction belt conveyor are 25% The diameter reduction calculated by the nominal diameter of the wire rope must reach the following values.

The wire rope needs to bear the effect of alternating load during use, and its performance is mainly determined by the mechanical properties of the wire, the surface state of the wire and the structure of the wire rope. The steel wire material includes carbon steel or alloy steel, which is made by cold drawing or cold rolling, and the steel wire cross-section is round or special-shaped (T-type, S-type, Z-type), and the special-shaped cross-sectional steel wire is mainly used for sealing the production of steel wire rope, which has high tensile strength and toughness, and the steel wire is treated with suitable surface treatment to meet the needs of different environmental conditions.

Summary. Dear, hello, I have inquired for you how to write the test report of the wire rope sleeve is the test topic; Test principle, simply write down the test idea and the principle used; test instruments; The test steps, the entire test process, and the phenomenon data should be recorded; Finally, the test results and summary, if necessary, write some improvement suggestions The wire rope sleeve is a spiral wire sleeve that twists the steel wire that meets the requirements of mechanical properties and geometric dimensions according to certain rules, and the wire rope sleeve is used in the material handling machinery for lifting, traction, tensioning and bearing.

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Dear, hello, I have inquired for you how to write the test report of the wire rope sleeve is the test topic; Test principle, simply write down the test idea and the principle used; test instruments; The test steps, the whole test is scattered, and the phenomenon data must be recorded; Finally, the test results and summary, if necessary, write some improvement suggestions The wire rope sleeve is a spiral wire sleeve that twists the steel wire that meets the requirements of mechanical properties and geometric dimensions according to certain rules, and the wire rope sleeve is used in the material handling machinery for lifting, traction, tensioning and bearing.

It's not clear what specific type of wire rope you're using, but there is a general standard that you should be able to refer to:

GB T 20118-2017 General Technical Conditions for Wire Ropes.

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The method of checking the surface quality of the wire rope is as follows: 1. From the packaging point of view, the quality of the wire rope is mainly reflected in the packaging, after the wire rope arrives, the rope rope is deformed, broken or scattered, causing the wire rope to roll up on the rope wheel, squeeze it, abrasion or have no moisture-proof measures to cause serious rust and affect the user.

The packaging quality of the wire rope is as follows: during loading and unloading, the rope wheel is broken, the packaging cloth is torn, the incorrect hoisting rope buckle is squeezed in the gap of the rope and cannot be taken out, the loading and unloading is improper, the wooden shaft is broken, the wire rope is scattered, the rope rope is not strong enough, the strength of the rope wheel is not enough, and the serious mess is caused after the break, the warehouse management is disordered, the warehouse is stacked indiscriminately, and the warehouse management is disorderly. 2. Surface damage: Crushing, bruising, hanging, scratching or nail wounds and other injuries on the surface of the wire rope due to contact with the outside are collectively referred to as surface damage, but the plastic deformation caused by the crimping die, pre-transformer or roller die in the manufacturing process does not belong to the category of surface damage.

Crushing: After the rope strand is crushed, the wire rope is deformed, the rope strand is crushed, and the rope diameter is deformed, resulting in uneven twist distance, increased strand clearance, increased strand clearance, and exposed hemp core, which is generally caused by handling and falling and external force smashing. Bumps:

After the femoral is bruised, the hard bend and convex hemp core is exposed, which is generally caused by transportation. Hanging injury: After the rope strand is hung up, the strand is unevenly tightened; The coiled rope is scrapped by serious hanging injuries, usually caused by scratches during the production process

This type of damage is a defect caused during transportation or loading and unloading, and is generally caused during transportation. Nail injury: the inner layer of the rope nail has been damaged, and the phenomenon caused by the fixation of the rope head nail is generally not a quality problem.

Scratching: The outer steel wire is scratched by a hard object, resulting in the loosening of the outer wire of the thigh, which is generally caused by transportation. 3. Surface rust (floating rust) oxidation phenomenon on the surface of wire rope (local or whole).

The causes of rust (floating rust) on the surface of the new wire rope: First, acid, alkali, salt and other substances remain on the surface of the wire in the production. Second, the steel rope grease contains too much acid, alkali or moisture.

The third is poor oiling in the production of wire rope. Fourth, it is caused by improper packaging moisture-proof measures (due to the import of wire ropes to be transported by voyage), harmful gas impregnation, etc. It is permissible for new ropes (especially wire ropes that are not oiled by users) to have slight rust, but if there are still rust spots or have caused pits and hemp surfaces after wiping, the manufacturer should be held responsible.

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Do you have any other questions?

1. Check whether there is corrosion

2. Check the degree of wear

3. Whether there is broken wire and abrasion:

4. Check the fastening at both ends

5. Check the shape of the wire rope;

6. Check the lubricating grease on the surface of the wire rope. The wire rope is made of stainless steel wire or high-carbon steel. However, if the quality of the wire rope is poor, if the manufacturer replaces the wire with iron wire, it will rust.

Therefore, the first thing to do is to check the wire rope every day for rust. If found, not only should it be stopped, but it should also be reported to the production department and the purchasing department.

Steel wire is one of the four major varieties of steel plate, tube, profile and wire, which is a reprocessed product made of hot-rolled wire rod through cold drawing. According to the cross-sectional shape, there are mainly circles, squares, moments, triangles, ellipses, flattens, trapezoids, Z-shapes, etc.; Classified by size, there are extra-fine millimeters; Classified by intensity, there are low intensity 3135 megapascals; According to the classification of use: ordinary quality steel wire includes welding rod, nail making, net making, packaging and printing industry steel wire, cold top forging steel wire for cold heading rivets, screws, etc.