JPH01289527A - Crimped wire and its manufacture - Google Patents

Abstract

PURPOSE:To improve polishing force and grinding force for a gold brush and a wire saw by crimping and then heat-treating a metallic wire having a limited wire diameter to form a crimp having a limited wave depth. CONSTITUTION:Crimping such as waving 3, spiraling to give a wave depth equal to 1.01-2 times the wire diameter is carried out to a metallic wire having 0.1-2mm wire diameters. Then, oil temperquench is performed and then cold annealing is performed. The crimped wire 4 by such constitution is excellent in mechanical material properties and when it is used as a wire for golden brush and a wire for wire saw, it not only improves the polishing force and grinding force but expands those lines.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is directed to metal IK used in gold brushes, wire saws, etc.
This invention relates to a crimp wire that has been subjected to crimp processing.

BACKGROUND OF THE INVENTION Conventionally, gold brushes have been formed by hardening and tempering piano wire, and then corrugating the wire.

Furthermore, wires for wire saws have been formed by twisting irregularly shaped wires such as elliptical wires and flat wires, or by forming grooves on the surface of round wires.

The problem to be solved by the invention Since the metal brush is quenched and tempered and then corrugated at TT L, the wire tends to break during the corrugation process, resulting in poor yield. If the elongation is increased and the hardness is decreased, the wave shape will become distorted during use.
There was a problem that it no longer functioned as a gold brush, and because the wire for wire saws was twisted or grooved, the manufacturing cost was extremely high.

Means for Solving the Problems The present invention has been made in order to eliminate the above-mentioned problems. After crimp-processing a metal wire with I W ~ 2 trends, the crimp wire is heat-treated to form a stable crimp with a wave depth of 1.01 to 2 times the wire diameter. To provide and obtain the above-mentioned crimp wire, the metal wire is subjected to crimp processing such as corrugation or spiral processing in which the depth of the corrugations is 1.01 to 2 times the wire diameter, and then oil tempered. Perform quenching,
The present invention provides a method for manufacturing a crimp wire, which is then subjected to low-temperature tempering.

Example 5 A 11W* piano wire is repeatedly heat-treated and stretched to form a metal wire with a diameter of 0.35 m.

Next, as shown in Figure @1, connect the gold i-line fil to the gear +!
l, +! The metal wire (3), which has been crimped by the corrugation process, is heated to a furnace temperature of 700°C to 850°C.
By heating in a heating furnace at ℃, quenching with oil, and then tempering at 800℃ to 400℃, a crimp with a wave depth h of α856 to 0.880 m is produced as shown in Fig. 2. Wire 14) could be obtained.

As shown in FIG. 8, the crimp wire (4) obtained above is a metal wire (31 is oil-oiled The waves (6) are elongated due to heating during tempering, creating unevenness (6) at the top and bottom of the waves, that is, at the bending part, and the depth h of the waves is 1.02 to LO with a wire diameter of 0.3511110.
It has a zigzag shape that is approximately 9 times as large as a straight line.

The mechanical properties of the crimp wire (4) include a tensile strength of 270Q and an elongation of 6. Aperture value is 50° hardness is HV7
By changing the quenching temperature and tempering temperature for this mechanical property, the values near the above values can be obtained.
Depending on the application, it can be manufactured as desired, such as one with high or low tensile strength, or one with high or low elongation value.

In addition, in the above examples, the wire diameter is 0.1 to 1081 mm.
However, this range is preferable; if the gap is smaller than α1&1, the strength of the wire will be weakened, the wire will be easily broken during heat treatment, and the crimp effect will be reduced. Also, when using a colander larger than &0 and waving, it is important to apply ti to the wire.
It was difficult to process without adding t.

Furthermore, the depth of the crimp wave was set to 1.01 to 8 times the wire diameter, but if it is less than 1.01 times the crimp effect is 2.
If the number exceeds this number, it becomes difficult to manufacture.

9. In the above embodiment, a wave-shaped gear is used as a means for crimp processing, but a Kffl-shaped gear (7) may also be used as shown in FIG. Even if it is processed into a spiral shape and then heat treated, a limp wire with almost the same result can be obtained.

Next, a comparison between a gold brush using the crimp wire of the present invention and a conventional gold brush was as follows.

Polishing time ratio with gold brush index Straight @ (round) wire Zo.

Corrugated wire (conventional) 130 Crimp wire (invention) 150 As shown above, when the round wire shape is made into a gold brush and the polishing time is taken as 100, the conventional corrugated wire has an increase of 80%, and the invention The crimp wire has a 50% increase in abrasive power compared to conventional corrugated wire, and the life of the gold brush has also increased by about 50% compared to conventional corrugated wire.

Regarding the improvement in polishing power and lifespan, almost the same effects can be obtained when used as a wire for a wire saw.

Effects of the Invention Because the crimp wire of the present invention has the above-mentioned configuration, it has extremely excellent mechanical properties, and when used as a wire for a brush or a wire for a wire saw, it has less abrasive force and grinding force than conventional ones. Not only has it greatly improved, but its lifespan has also been greatly extended.

Moreover, according to the manufacturing method of the present invention, conventional products were manufactured with a tensile strength of 200 KP/- or less to prevent breakage, but even if they have a tensile strength of 270 Kg/- or more, This invention has excellent effects in that it can be manufactured without breakage, the strength of the wire is improved, and it is possible to manufacture a crimp wire that is easy to manufacture and inexpensive.

[Brief explanation of the drawing]

@Figure 1 is an explanatory diagram showing an embodiment of a gear for corrugation used in the method for producing a crimp wire of the present invention, Figure 482 is a front view showing an embodiment of the crimp wire of the present invention, and Figure 8 FIG. 4 is an enlarged front view showing one embodiment of a corrugated crimped metal wire according to the present invention, and FIG. 4 is an explanatory diagram showing another embodiment of the gear used in the present invention. (1)...Gold PA@n+, (Ding)...Gear (3)...Gold with a ring g4#1l (4)・
・Crimp wire

Claims (2)

[Claims] (1) After crimping a metal wire with a wire diameter of 0.1 mm to 2 mm, heat treatment is performed to form a stable crimp with a wave depth of 1.01 to 2 times the wire diameter. A crimp wire characterized by: (2) A metal wire with a wire diameter of 0.1 mm to 2 mm is subjected to crimp processing such as corrugation or spiral processing so that the depth of the corrugation is 1.01 to 2 times the wire diameter, and then oil tempered and quenched. 1. A method for manufacturing a crimp wire, the method comprising: followed by low-temperature tempering.