JPS61624A - Ring for spinning frame - Google Patents

Abstract

PURPOSE:To improve the fitness of a ring to a traveller,and to effect stable running of a traveller thereby suppressing the fluffing and prolonging the life of the ring, by applying a titanium carbide layer to the surface of a ring of a spinning frame by chemcial deposition, and applying a titanium nitride layer to the top of the carbide layer. CONSTITUTION:A spinning frame ring 1 made of carbon steel, alloy steel, tool steel or baked steel is subjected to e.g. the carburization treatment and surface-polishing treatment. The surface contacting with a traveller is coated with a titanium carbide layer 2 of 2-20mu thick and a titanium nitride layer 3 of 1mu thick by chemical deposition at 850-1,050 deg.C in a gaseous atmosphere composed mainly of TiCl4, H2, CH4 and N2, and the product is hardened to obtain the objective ring.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ring for a spinning machine having good wear resistance.

BACKGROUND OF THE INVENTION Conventional rings for spinning machines are generally made of case-hardened steel or iron-based sintered material, and are subjected to carburizing and quenching as a surface hardening process.

However, under the harsh operating conditions in today's textile mills,
Conventional rings for spinning machines lack abrasion resistance and wear out prematurely, causing unstable running of the traveler 2 and frequent thread breakage, as well as a lot of fuzz, which causes the traveler to seize and scatter prematurely.
Furthermore, there was a drawback that the life of the ring was shortened.

The present invention solves the above-mentioned drawbacks of the conventional rings for spinning machines.The present invention is intended to solve the above-mentioned drawbacks of the conventional rings for spinning machines.
4. By chemical vapor deposition in a gas atmosphere containing Is as the main component, a multilayer of titanium carbide and titanium nitride is formed on at least the surface of the ring that contacts the traveler, contributing to improved wear resistance. The object of the present invention is to provide a ring for a spinning machine.

A 1% embodiment of the present invention will be explained below based on the drawings.

EXAMPLE A ring material made of low carbon steel is formed into a single 7 flange ring 1 having a desired shape as shown in FIG. 1 by cutting.

After carburizing and surface polishing the above ring, Ti
A titanium carbide layer 2 with a thickness of 2 to 20 μm and a titanium nitride layer 8 with a thickness of 1 μm are deposited on the surface in contact with the traveler by chemical vapor deposition at 850 to 1050° C. in a gas atmosphere mainly composed of C141Hj, 0H41N. The ring for a spinning machine of the present invention is constructed by forming a ring and then subjecting it to a quenching treatment.

The treatment layers of the titanium carbide layer 2 and the titanium nitride layer 8 can be applied to the entire surface of the ring, but it is only necessary to provide them on at least the surface of the ring that will come into contact with the traveler. It can be applied to

The spinning machine ring A of the present invention has the above-mentioned structure, and its cross-sectional hardness distribution curve is as shown in FIG. 2, and the outermost surface hardness is H.
Since it is formed of a titanium carbide layer with Hv 8,800 to 4,000, which has the highest hardness from a depth of 1μ, it is comparable to the conventional carburized and quenched spinning machine ring B.
It has extremely high hardness.

Further, the treated layer and the base material are bonded by diffusion, and it is possible to obtain better adhesion than plating or physical vapor deposition.

Figure 8 shows a curve diagram of operating time and wear loss when spinning using ring A for a spinning machine according to the present invention under the following test conditions.

Test conditions Ring inner diameter = 47 Solution 7 Lunge width 8.2 Fiber: Rayon Bright 80'8 Spindle rotation speed:] 5000 r, p, m Travel 2:
zsa/hr 210 From FIG. 8, it can be seen that, compared to the conventional ring B for a spinning machine, the ring A for a spinning machine of the present invention has a wear loss of about 175% and its service life is more than 5 times longer.

Although the above embodiment shows an example in which the ring is applied to a single plunge ring, as shown in FIG. Alternatively, the ring for a spinning machine of the present invention can be constructed by forming a titanium carbide layer 2 and a titanium nitride layer on the upper surface, inner barrel surface, and lower surface of the conical sintered ring 5 as shown in FIG.

In the above-mentioned sintered ring, since a multilayer of a titanium carbide layer and a titanium nitride layer is provided on the surface of the pores in the surface layer, the wear resistance is significantly improved.

Incidentally, in each of the above embodiments, in order to further improve the surface precision, the surface polishing treatment may be performed again after the hardening treatment. Furthermore, although the treated layer in each embodiment is multi-layered, when only wear resistance is particularly required, only a titanium carbide layer may be formed on the ring surface.

Effects of the Invention The spinning machine ring of the present invention is made of carbon steel, alloy steel, tool steel, sintered steel, etc. and has a titanium carbide layer that has good adhesion to the base material on at least the surface that contacts the traveler. Because it forms a titanium nitride layer, it blends well with the ring and the ring and lasts for a long time).The traveler runs stably, prevents frequent thread breakage, suppresses the occurrence of fluff, and increases the life of the ring. can be significantly extended.

In addition, the outermost titanium nitride layer has good compatibility with the traveler and has good corrosion resistance, so it can be used with conventional spinning machines when spinning flame-retardant fibers such as polyvinyl chloride fibers, vinylidene fibers, and modacrylic fibers. This invention has excellent effects, such as not causing rust in a short period of time, unlike other rings.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a single 7 lunge ring showing one embodiment of the present invention, and Figures 2 and 8 are comparisons between the spinning machine ring of the present invention and a conventional ring. FIG. 8 is a cross-sectional hardness distribution curve diagram, FIG. 8 is a wear loss curve diagram, and FIGS. 4 and 6 are sectional views showing other embodiments of the present invention. 1...Single 7 lunge ring 2...
Titanium carbide layer 8...Titanium nitride layer 4...Vertical ring

Claims (1)

[Claims] A titanium carbide layer and a titanium nitride layer are formed on at least the surface of a spinning ring made of carbon steel, alloy steel, tool steel, sintered steel, etc. by chemical vapor deposition on at least the surface that contacts the traveler. A spinning machine ring characterized by: