JPH04126836A - Weaving tool coated with amorphous alloy and production thereof - Google Patents

Abstract

PURPOSE:To obtain the title tool for a loom having abrasion resistance and long life by forming a coating film layer consisting of an amorphous alloy containing a metal having high hardness in part or whole of weaving element coming into contact with weaving yarn and consisting essentially of a steel material by sputtering. CONSTITUTION:In weaving tools of heald 6 and reed 1, etc., used in a loom, a coating film consisting of an amorphous alloy containing a compound of substance having high hardness or metal having high hardness is formed by sputtering, etc., in part or whole of weaving element of tool used in a loom in which an weaving element for carrying out contact or friction with weaving yarn is mainly composed of a steel material to provide the aimed weaving tool. Furthermore, as these tools, in the reed 1, the side-face parts 2 and 3 having large abrasion are preferably formed of a coating film layer of substance having high hardness and in the heald 6, circumference of long hole 7 for passing warp through is preferably formed of the above-mentioned coating film layer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a weaving tool used in a loom.

[Conventional technology and its problems]

Typical weaving tools commonly used are belts and reeds. The material used is a stainless steel 5US-430 or 5US-304 wire rod that is rolled or punched out of a plate to obtain a predetermined shape. Since these tools naturally come into contact with the thread and undergo friction, tools whose surfaces have been subjected to processing such as barrel polishing or electrolytic polishing are used. However, with advances in the performance of looms and weaving methods, the properties of yarns have changed, and long fibers containing titanium metal have come to be used, and these factors have affected the contact area between the tool and the yarn. This results in a rapid increase in wear and premature tool wear. In addition, in water jet looms that use water as a weft conveyance means, the belts get wet with water, which causes adjacent belts to stick to each other, which obstructs the shedding of the warp threads, and also causes the threads to pass through the holes. Increasing friction In the reed section, the warp threads converge to a predetermined weave width, so the side surfaces of the reet at a certain position are strongly rubbed, resulting in extremely severe wear. In addition, in the air jet loom where air is used in the weft yarn conveying means, in addition to the above-mentioned situation, the tool is repeatedly rubbed due to the direct influence of metals contained in the yarn or surface properties, causing wear. is shortening the lifespan of

The present invention aims to eliminate the above two drawbacks, provide a weaving tool having a coating layer that is wear resistant and has good water repellency, and also provides a coating layer with higher hardness. The present invention aims to provide a method for practically forming a layered structure.

[Means for solving problems]

In the present invention, a thin film of an amorphous alloy with a low coefficient of friction and good water repellency is attached to the tool. High-hardness metals generally have a high melting point, and sputtering is the most suitable method for forming a film on tools, and the resulting thin film has an amorphous structure and exhibits extremely high water repellency. In other words, the purpose is to provide a weaving tool that has good thread slippage regardless of whether the environment in which the thread is operated is dry or wet, has less wear, and is resistant to rust.

Therefore, the weaving tool according to the first invention is a tool used in a loom in which the weaving element that contacts or rubs the weaving yarn is mainly made of steel, and the weaving element is partially or entirely made of a high-hardness material. It is characterized in that a coating layer made of a compound or an amorphous alloy containing a high-hardness metal is formed.

In the second invention, the components of the amorphous alloy are
, W, T 3. , T i O2
, S i C, A 1 203, Cr3C7, etc., and is an alloy of these metals with Fe, Cr, Ni, P, etc., and maintains the contact angle of water at 70°C or more and has a hardness of Hv.
A metal layer of 900 or more is deposited.

In the third invention, a layer of a metal such as Zn, Sn, Ni, Cu, Cr, or a compound thereof, or a compound such as F is formed between the steel surface and the amorphous alloy coating layer. .

In the fourth invention, the coating layer of the amorphous alloy to be formed is formed by a series of thick portions and thin portions.

In the fifth invention, the amorphous alloy coating layer is formed on the weaving tool by sputtering.

[Effect]

A surface that is abrasion resistant and has a water contact angle of 70 degrees or more has a very smooth feel and does not cause the thread to stick to it.

In addition, when the film thickness is 10 μm or less, the roughness of the polished surface of the tool after processing the material remains even after the film is formed, resulting in a so-called satin finish, which is convenient as it also serves to reduce the contact area with the thread. .

The contact angle of the coating layer of an amorphous alloy mainly composed of Ta, W, etc. and also containing Fe, Ni, Cr, etc. to water is 9.
0' and shows a value that follows 115° of fluororesin, and the friction coefficient is 5US304 or S U
S 4.30 is 0.8, the amorphous alloy layer has a hardness of less than 0.5, and the hardness is HV100O or more, 5US430 (HV200-300), 5US3
It has a much higher hardness than 04 (HV35Q to 45o).

〔Example〕

The present invention will be explained based on embodiment drawings.

FIG. 1 shows a lead 1 of a water diene 1-room, and its cross section has a rounded oval shape as shown in FIG. The parts that experience the most wear are the side parts 2 and 3. During sputtering, the inside of the vacuum chamber should be kept at 1.0'
Reduce the pressure to Torr and inject argon gas] O'To
Adjust to rr. Then, as shown in FIG.
is fixed on the fixed base 5, and the target material (T
a: 50%, Fe: 35%, N]: 5%, Cr: 1
0%)4. ．． 4-' were installed in parallel with an interval of 70 mm, and a DC voltage of 2 KV was applied between the inner wall of the container and the target material to generate an argon glow discharge. The ionized argon atoms hit the Targera I material 4, 4', causing sputtered atoms to be thrown out and adhered to the surface of the lead 1.

A film thickness of 5 μm was obtained by processing for about 40 minutes as described in Section 42.

In addition, the air jet loom lead shown in FIG. 3].

A similar coating layer was also deposited for O.

Next, another example will be shown.

Figure 4 shows heald 6, total length 300mm, rl
]2 nwn thickness 0.2mm+ material SUS 4.
03, it is a flexible material. Long hole 7 in the center
There is a long hole 7 through which the warp threads are threaded. The film may be formed uniformly over the entire belt 6, but a case will be described in which the film is formed around the elongated hole 7 to a thickness of 6μ and the other parts to a thickness of 1 to 3μ.

As shown in FIG.
Approximately 6011wI+ target material (same as in Example 1) 8.8' is placed at the 0I1wn position, and sputtering is performed under the same conditions.

In this case, since the target material 8.8' is shorter than the belt 6, many sputtered atoms inevitably reach the elongated hole 7, and a small amount of sputtered atoms adhere to the tip of the belt. In fact, if the film thickness exceeds 5μ, the high hardness film will cause the heald to be strong < +I
Since cracks will occur if the hole is broken, this embodiment is sufficiently effective if the thickness is increased especially around the elongated hole, and the other areas have the effect of improving the slipperiness.

Next, the results of a comparison test between a normal stainless steel (SUS-4, 30) lead and the lead according to the present invention will be shown.

The warp used was polyester 50d with a density of 1. OO book/
The water jet loom was operated at a speed of 800 times/min on a plain knitted fabric with a weft density of 100 threads/inch. Scratches were observed on the stainless steel reed at a weaving length of 3,000 m, and fuzz was also observed on the warp threads at a weaving length of 3,500 m. On the contrary, no scratches were observed in the product of the present invention even after the distance exceeded 7000 m.

〔effect〕

According to claim (1), since the coating layer made of an amorphous alloy with extremely high wear resistance is formed on the weaving tool,
Abrasion caused by the yarn during weaving and corrosion caused by the yarn or installation environment can be prevented by the high corrosion resistance of the coating layer.

The material according to claim (2) has particularly excellent wear resistance and is suitable for weaving tools in water jet looms.
Durability is improved.

The tool according to claim (3) exhibits a rust-preventing effect even in parts of the weaving tool where the amorphous alloy coating layer is difficult to adhere to, and has good adhesion even to materials that have a base to which the amorphous alloy coating layer is difficult to adhere. Become.

According to claim (4), since the film is thin in the areas where bending force acts and is strongly distorted, the elasticity of the material can be utilized and cranking does not occur due to the elasticity of the film, and the film is thicker in other areas. This prevents wear caused by friction caused by threads and other materials.

According to claim (5), the weaving tool is provided with a coating layer having strong toughness and strong adhesiveness that does not easily peel off due to deformation external force, in order to make the adhesion strength of the amorphous alloy coating layer extremely high. It produces effects that can be obtained efficiently.

[Brief explanation of drawings]

FIG. 1 is a side view of the lead of the water jet loom, FIG. 4 is a side view of the belt, FIG. 5 is an explanatory diagram of the sputtering state of Lee I-, and FIG. 6 is an explanatory diagram of the sputtering state of the belt. Explanation of symbols

Claims (5)

[Claims] (1) A tool used in a loom in which the weaving elements that come into contact with or rub against the weaving threads are mainly made of steel, where part or all of the weaving elements contain a compound of a high-hardness substance or an amorphous metal. A weaving tool characterized by being formed with a coating layer made of an alloy. (2) The components of the amorphous alloy are Ta, W, Ti, and Ti.
A claim in which a metal layer made of an alloy of O_2, SiC, Al_2O_3, Cr_3C_2, etc. and Fe, Cr, Ni, P, etc. and having a water contact angle of 70° or more and a hardness of HV900 or more is deposited ( The weaving tool described in 1). (3) Between the steel surface and the amorphous alloy coating layer, Zn
The weaving tool according to claim 1 or 2, further comprising a layer of a metal such as , Sn, Ni, Cu, or Cr, or a compound thereof, or a compound such as F. (4) The weaving tool according to claim (1), (2) or (3), wherein the formed coating has a continuous thick portion and thin portion of the amorphous alloy coating layer. (5) Claims (1) and (2) characterized in that the coating layer made of an amorphous alloy is formed by sputtering.
, (3) or (4).