CN103398884A - Hot embedding method for gold-phase sample preparation of thin steel wires - Google Patents

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

The hot method for embedding of thin specification wire metallographic sample preparation

Technical field

The present invention relates to a kind of hot method for embedding of thin specification wire metallographic sample preparation.The section hardness that this metallographic sample preparation is mainly used in observing the xsect of thin specification wire (diameter is less than 1.0mm) and tests thin specification wire, belong to metal material physical test detection technique field.

Background technology

Wire rope is to be twisted thigh by the multilayer steel wire, then, centered by wire rope core, by some thighs, is twisted spiral helicine rope.In material carrying machine, for promoting, traction, tension and carrying, be widely used in the aspects such as elevator, aviation, oil, bridge.At present more and more higher to the quality requirements of wire rope, therefore the quality control of every steel wire had to the important impact for the quality that guarantees wire rope.Steel wire transverse section hardness, tissue and thickness of coating are the principal elements that affects wire quality, and way is that steel wire is inlayed and carried out the xsect grinding and polishing usually, and method for embedding one is to use cold inlaying, but the edge sample cycle is long, and efficiency is low; The 2nd, use unit clamp, but this fixture belongs to disposable use, and be foreign import, cost is very high, only in scientific research, uses on a small quantity, can not be used in production testing on a large scale.Because diameter is too thin less than the 1.0mm steel wire, xsect is less, when inlaying, is difficult to guarantee that steel wire is vertical, after grinding and polishing, can cause the circularity of steel wire xsect and flatness impaired, same sample also there will be one group of high one group of situation that steel wire is low of steel wire, affects the accuracy of testing result.Particularly elevator is with contour performance wire rope, and the metallographic structure of steel wire xsect and microhardness are detected high requirement is arranged, and therefore the method how thin specification wire of quick solution is inlayed invented.

Summary of the invention

The object of the invention is to overcome above-mentioned deficiency, a kind of hot method for embedding that can guarantee the thin specification wire metallographic sample preparation of thin specification wire samples vertical when inlaying is provided.

The object of the present invention is achieved like this: a kind of hot method for embedding of thin specification wire metallographic sample preparation, described method comprises following technological process: by the thin specification wire sample marshalling of many certain-lengths, stick on the thick specification wire identical or close with thin specification wire material around, then thin specification wire and the combination of thick specification wire are put into to the pointing machine with function of temperature control, and inlay powder toward interior interpolation of pointing machine, open pointing machine by thick specification wire, thin specification wire and inlay the metallographic specimen that powder heat is set into an integral body.

Described method comprises following processing step:

Step 1, the thin specification wire sample of making

Intercept thin specification wire to be measured, the end face of the thin specification wire after intercepting is become to plane with emery wheel or sand papering, remove burr, make thin specification wire sample, this thin specification wire sample diameter is less than 1.0mm, and length is at 5 ~ 10mm;

Step 2, the thick specification wire sample of making

Choose the thick specification wire identical or close with thin specification wire material to be measured, cross section be circle or rectangle all can, the one end is polished, make thick specification wire sample, this thick specification wire sample diameter 4 ~ 8mm, length is at 8 ~ 12mm;

Step 3, stickup

The many thin specification wire sample marshallings that step 1 is made stick on thick specification wire sample that step 2 makes around, the end face that thin specification wire samples vertical is polished in thick specification wire sample, and make thin specification wire sample polish end face and thick specification wire sample to polish end face concordant;

Step 4, edge sample

The end face that polishes of the combination of the described thin specification wire sample of step 3 and thick specification wire sample is put into to the pointing machine with function of temperature control down, and inlay powder toward interior interpolation of pointing machine, open pointing machine by thick specification wire, thin specification wire and inlay the metallographic specimen that powder heat is set into an integral body.

Compared with prior art, the invention has the beneficial effects as follows:

1, when inlaying, can guarantee thin specification wire samples vertical, after grinding and polishing, can not cause the circularity of steel wire xsect and flatness impaired, same sample not there will be one group of high one group of situation that steel wire is low of steel wire, and the accuracy of testing result is high.

2, can rapidly and efficiently complete the sample preparation of inlaying of thin specification wire xsect, for follow-up metallographic observation or micro-hardness testing are provided convenience.

3, the sample detection of applicable all thin specification wire xsects.

4, tiny in sample diameter to be checked, measure in large situation, simple to operate, to detect effect fast and detect effective.

The accompanying drawing explanation

Fig. 1 is the operation chart of the hot method for embedding of the thin specification wire metallographic sample preparation of the present invention.

Reference numeral in figure:

Thick specification wire sample 1, thin specification wire sample 2, inlay powder 3.

Embodiment

Referring to Fig. 1, Fig. 1 is the operation chart of the hot method for embedding of the thin specification wire metallographic sample preparation of the present invention.As seen from Figure 1, the hot method for embedding of the thin specification wire metallographic sample preparation of the present invention, described method comprises following processing step:

Step 1, the thin specification wire sample of making

Intercept thin specification wire to be measured, the end face (xsect) of the thin specification wire after intercepting is become to plane with emery wheel or sand papering, remove burr, make thin specification wire sample, this thin specification wire sample diameter is less than 1.0mm, and length is at 5 ~ 10mm;

Step 2, the thick specification wire sample of making

Choose the thick specification wire identical or close with thin specification wire material to be measured, cross section be circle or rectangle all can, the one end is polished, make thick specification wire sample, this thick specification wire sample diameter 4 ~ 8mm, length is at 8 ~ 12mm;

Step 3, stickup

The many thin specification wire sample marshallings that step 1 is made stick on thick specification wire sample that step 2 makes around, the end face that thin specification wire samples vertical is polished in thick specification wire sample, and make thin specification wire sample polish end face and thick specification wire sample to polish end face concordant;

Step 4, edge sample

The end face that polishes of the combination of the described thin specification wire sample of step 3 and thick specification wire sample is put into to the pointing machine with function of temperature control down, and inlay powder toward interior interpolation of pointing machine, open pointing machine by thick specification wire, thin specification wire and inlay the metallographic specimen that powder heat is set into an integral body.

Take out the metallographic specimen after heat is inlayed, by metallographic sample preparation step roughly grind, fine grinding, polishing and corrosion, carry out required metallographic structure detection or microhardness and detect.

Claims (2)

1. the hot method for embedding of a thin specification wire metallographic sample preparation, it is characterized in that: described method comprises following technological process: by the thin specification wire sample marshalling of many certain-lengths, stick on the thick specification wire identical or close with thin specification wire material around, then thin specification wire and the combination of thick specification wire are put into to the pointing machine with function of temperature control, and inlay powder toward interior interpolation of pointing machine, open pointing machine by thick specification wire, thin specification wire and inlay the metallographic specimen that powder heat is set into an integral body.

2. the hot method for embedding of a kind of thin specification wire metallographic sample preparation according to claim 1, it is characterized in that: described method comprises following processing step:

Step 1, the thin specification wire sample of making

Intercept thin specification wire to be measured, the end face of the thin specification wire after intercepting is become to plane with emery wheel or sand papering, remove burr, make thin specification wire sample, this thin specification wire sample diameter is less than 1.0mm, and length is at 5 ~ 10mm;

Step 2, the thick specification wire sample of making

Choose the thick specification wire identical or close with thin specification wire material to be measured, cross section be circle or rectangle all can, the one end is polished, make thick specification wire sample, this thick specification wire sample diameter 4 ~ 8mm, length is at 8 ~ 12mm;

Step 3, stickup

The many thin specification wire sample marshallings that step 1 is made stick on thick specification wire sample that step 2 makes around, the end face that thin specification wire samples vertical is polished in thick specification wire sample, and make thin specification wire sample polish end face and thick specification wire sample to polish end face concordant;

Step 4, edge sample

The end face that polishes of the combination of the described thin specification wire sample of step 3 and thick specification wire sample is put into to the pointing machine with function of temperature control down, and inlay powder toward interior interpolation of pointing machine, open pointing machine by thick specification wire, thin specification wire and inlay the metallographic specimen that powder heat is set into an integral body.

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