JPS6112933A - Metallic traveler for spinning machine - Google Patents

Abstract

PURPOSE:The titled traveler, obtained by molding an alloy steel wire material containing C, Cr, W, V, Mo and Co respectively in a specific proportion and the remainder consisting of iron, having improved abrasion and heat resistance in high-speed operation, capable of keeping stable operation, and having a long life. CONSTITUTION:A metallic traveler obtained by molding an alloy steel wire material containing 0.7-1.5% C, 3.8-4.5% Cr, 5-20% W, <=6.5% Mo, 0.8-5.5% V and 4-16% Co and the remainder consisting of Fe as a material into a given shape, e.g. conical form, usually hardening, and tempering the resultant hardened material at 550-600 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a metal frame 2 for a spinning machine used in spinning machines, yarn twisting machines, etc.

Conventional technology Conventionally, metal travelers for spinning machines have generally been made of hard steel wire rods, which have been formed into various shapes such as vertical and horizontal, and have been hardened by quenching and tempering, and have been subjected to surface treatments such as nickel and chrome. There is.

Problems that the invention aims to solveIn recent years, in the spinning industry where high production and high speed spinning are carried out in a harsh spinning environment and where improvements in operational efficiency are required, wear resistance is required from the viewpoint of stable operation and economics. There is a demand for a traveler with excellent durability, long life, less occurrence of trapera burn, and less thread breakage and thread fuzz.

Therefore, the traveler made of hard steel wire has insufficient wear resistance and heat resistance during high-speed operation, and has a problem in that it does not meet the above requirements in terms of service life.

Means for Solving the Problems The present invention solves the above-mentioned problems. It is an alloy steel AT material containing at least elements such as a, Or, W, Mo, v, and ao, and is made into a predetermined traveler shape. The present invention provides a long-life metal sheet 2 with excellent abrasion resistance and heat resistance, with less yarn breakage and yarn fuzz under conditions of high production and high speed spinning. .

An embodiment of the present invention will be described below based on the drawings.

Example c: 0.7.0~o, so%tor: 4.0%,
W: 18%.

Figure 1 er)s("
) As shown in (c), the molding machine gives the specified horizontal shape (1),
Formed into conical shape (ri), vertical shape (3), etc., and after quenching 55
After tempering at 0'0 to 600°C, a metal travel 2 with hardness of HRO65 or higher and excellent wear resistance and heat resistance was formed by the secondary imaging effect that is a characteristic of this alloy steel. .

In order to compare the metal traveler 2 of the present invention with a conventional product, a spinning test was conducted under the following spinning conditions.

Yarn: Ester/Cotton 40'8 Su/g: 8.1m7 lunge 41mQ To 2 Be 9: zsB/hf x910 Spindle rotation speed: B O, 0G Or, p, m The results of the spinning test are shown in Figure 9 As for the product of this invention) is the conventional product CB
) The amount of wear was reduced by about 40% after 20 hours, the lubrication properties were improved, the frequency of traveler burns was reduced, and the life was significantly improved.

In addition, as shown in Figure 8, the number of thread breaks is slightly lower than that of the conventional product (2) at the beginning of use, but it remains stable as days pass, extending the service life by approximately 1.5 times. .

In the above embodiment, a molybdenum-based high-speed tool steel wire using a tungsten-based high-speed tool steel wire may also be used as the material for forming the two parts.

Effects of the Invention Since the present invention has the above-mentioned configuration, although the initial thread breakage is not much different than conventional products, stable operation can be maintained, and since it has excellent heat resistance and abrasion resistance, it is possible to achieve a long service life. It became. Especially spindle rotation speed B 0.00 Or
This invention has the effect of satisfying economic requirements and stable operation in the field of high-speed spinning of , yn or higher.

[Brief explanation of drawings]

Figures 1 (a), (b), and (c) are front views of a metal traveler 2 for a spinning machine showing one embodiment of the present invention, and Figure 2 shows the relationship between the number of days of use of the traveler 2 and the amount of wear and tear. FIG. 8 is a curve diagram showing the relationship between the number of days of use and the number of thread breakages. fl......Horizontal tel...Conical (3)...Vertical Figure 1 (A) ＾F I
/ Nori Figure 2 Figure 3

Claims (1)

[Claims] At least C: 0.7-1.5%, Cr: 8.8-4.
5%, W: 5.0-20%, Mo: 6.5% or less, V:
A metal traveler for a spinning machine, characterized in that it is formed into a predetermined shape using an alloy steel wire material containing 0.8 to 5.5% Co, 4.0 to 16.0% Co, and the balance being iron. .