Hot embedding method for gold-phase sample preparation of thin steel wires

Abstract

The invention relates to a hot embedding method for gold-phase sample preparation of thin steel wires. The hot embedding method is characterized by comprising the following process steps: arranging a plurality of thin steel wires with certain length neatly, sticking the thin steel wires around thick steel wires which are made of materials same or similar to those of the thin steel wires, then putting a combined body of the thin steel wires and the thick steel wires into an embedding machine with a temperature control function, adding embedding powder into the embedding machine, starting the embedding machine to hotly embed the thick steel wires, the thin steel wires and the embedding powder into a whole gold-phase sample. The method has the advantages that the verticality of the thin steel wire samples is guaranteed in embedding; and under the condition of less diameter and large quantity of samples to be detected, the operation is simple, the detecting speed is fast and the detecting effect is good.

Description

technical field [0001] The invention relates to a hot embedding method for fine-gauge steel wire metallographic sample preparation. The metallographic sample preparation is mainly used for observing the cross-section of fine-gauge steel wire (diameter less than 1.0mm) and testing the cross-section hardness of the fine-gauge steel wire, belonging to the technical field of metal material physical test detection. Background technique [0002] The steel wire rope is twisted into strands by multi-layer steel wires, and then twisted into a helical rope by a certain number of strands with the rope core as the center. In material handling machinery, it is used for lifting, pulling, tensioning and carrying, and is widely used in elevators, aviation, petroleum, bridges, etc. At present, the quality requirements for steel wire ropes are getting higher and higher, so the quality control of each steel wire has an important impact on ensuring the quality of steel wire ropes. The cross-s...

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Problems solved by technology

The cross-section hardness, structure and coating thickness of the steel wire are the main factors affecting the quality of the steel wire. The usual method is to inlay the steel wire for cross-section grinding and polishing. Special fixture, but the fixture is one-time use and imported from foreign countries, the cost is very high, it is only used in a small amount in scientific research, and cannot be widely used in production testing

Since the steel wire with a diameter of less than 1.0mm is too thin and the cross-section is small, it is difficult to ensure that the steel wire is vertical during inlaying. After grinding and polishing, the roundness and flatness of the steel wire cross-section will be damaged, and a group of steel wires will appear in the same sample. If the group steel wire is low, it will affect the accuracy of the test results

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