JPS60163980A - Sliding wax - Google Patents

Abstract

PURPOSE:To obtain wax which has a good sliding performance and allows waxing to be easily conducted, by incorporating gallium in wax. CONSTITUTION:Gallium is incorporated in wax. Gallium alone has an excellent effect. However, when gallium is alloyed with indium, zinc, tin or aluminum, the coated metal lasts long and the wax is easy to handle even when the melting point is lowered. Further, frictional resistance on a snowed surface can be reduced and speed-up can be made. Gallium is soft and gloss at a low temp. and can be easily processed. Accordingly, when it is incorporated in wax, the wax can be applied easily and uniformly without damage to sliding surfaces. Gallium applied to the sliding surface is hardened in a low-temperature atmosphere such as on the snowed surface, and the wax lasts longer than paraffin wax and is effective in such a low-temperature atmosphere.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides metallic gallium alone or metal In, Z
The present invention relates to a wax that improves sliding properties by applying an alloy of one or more selected from Sn, Sn, AI, etc. to a sliding surface.

Conventionally, ski waxes have been mixed with various paraffins depending on the air temperature and snow temperature, and many conditions have been taken into account when using them, and even ski manufacturers have had their say when it comes to selecting ski waxes for ski competitions. It is even said that the battle lies in the wax,
The reality is that there are many difficulties right before the start.

Also, there are some all-purpose waxes for general skiers on the market, but even though they are all-purpose waxes, they can be used only when the temperature is low (
In other words, snow that turns into powder snow has the disadvantage that it is not very smooth.

The present invention solves these problems and provides an excellent wax that is easy to wax and has good sliding performance, and particularly relates to a metal wax for sliding that is characterized by containing gallium.

Hereinafter, the wax according to the present invention will be explained in detail.

Metal Ga has a melting point of 29.8±1℃ and a density of 5.91g/cc.
It has a thermal conductivity of 0.28 to 0.38 (30'O), is soft and shiny at low temperatures, is easy to process, and can be molded into various shapes. Therefore, even when used as a wax, it can be applied easily and evenly without damaging the sliding surface.When it is cold, it can be applied with a cloth or sponge by simply soaking it in warm water, and it is ductile, so the amount used is small. is sufficient. Furthermore, the metallic Ga applied to the sliding surface becomes hard at low temperatures such as on snowy surfaces, and lasts longer than paraffin wax, making it more effective.

Furthermore, performance not seen in all-purpose waxes has been demonstrated for various types of snow, such as fresh snow, grainy snow, wet snow, and icy snow.

In this way, the effect of metal Ga alone is outstanding, but by alloying a certain proportion of metals such as In, Zn, Sn, and AI, the applied metal will last longer and its melting point will be lowered. It is easy to handle, reduces frictional resistance on the snow surface, increases speed, and has sufficient commercial value in terms of cost.

The addition ratio of each metal is In: 20~60%, Zn: 10~
20%, Sn: 10-30%, At: 3-5%, and the rest is Ga. From the phase diagram of Ga and each metal, it can be melted at a temperature within 100°C that allows easy mixing even at 17%. It is desirable to have a composition that
Any material that forms an alloy with Ga and melts at 100°C or less can be used.

In addition, regarding the mixing ratio, the melting point of each alloy decreases, for example, the melting point of Ga-In 76:24 alloy is 1567.
°C, and the ternary alloy Ga-3n-Zn is 82:
The melting point of the 12:6 alloy is 17° C., making it easier to handle than Ga alone.

When mixing other metals based on Ga, at least 60% -F is required for a binary system, and 30% or more of Ga is required for a ternary system. Furthermore, the Zn formulation is very effective when the air temperature and snow temperature are high.

On the other hand, in terms of compatibility with gliding surfaces, commercially available waxes need to be applied using a burner or trowel, then scraped and reapplied repeatedly, which requires a lot of effort, but the wax in the present invention can be applied by hand. By applying it warm and then spreading it with gauze or a sponge, you can coat the sliding surface evenly and greatly shorten the application time.

With Ga alloy wax, good results can be expected without affecting snow quality, as shown in the examples below.
It is especially suitable for ski competitions.

Moreover, according to the wax of the present invention, the amount of wax used at one time,
Wax application time, ease of handling, and sliding distance are better than conventional waxes.

EXAMPLE A comparative sliding test was conducted between the wax of the present invention and a conventional wax.

Three types of waxes were used: a commercially available general all-purpose wax, a commercially available wax prepared for competition use, and the wax of the present invention as follows.

The waxing for the all-purpose wax and the competition adjustment wax is based on the ``Competitive Ski Textbook, Alpine Edition'' (edited by the Alpine Committee of the All-Japan Ski Federation Training Department).

a) All-purpose wax (TOKO (trade name, Swiss IJ) silver parawax): This all-purpose wax is applied to the ski running surface, spread evenly with a trowel, then scrape off the surface thinly, and repeat the same process again to finish. .

b) Competition wax; ``1) HOLME NKOL (trade name, German acid) wax red and yellow 1:1 melted with a burner, mixed, and applied twice in the same manner as above.'' Something lost.

tv T OK O Wax Red and white 2:1 melted and mixed with a burner, then applied twice as above and dried.

C) Wax of the present invention; Metallic Ga alone, Ga-In in a ratio of 60:40. Three types of 80:20 Ga-Zn were applied to the sliding surface and finished by spreading it evenly with gauze.

The measurements were taken by two All Japan Ski Federation instructors (national athletes).
The test was repeated twice. The same skis were used, the test course had an average slope of 15°, and a skiing distance of 250 m.

Note that the test was randomly repeated 10 times and the average time was taken. A stopwatch capable of measuring up to 1/100 seconds was used to measure the time, and the average of the five timers, excluding the top two and the middle three, was taken.

The results of the comparative test based on the sliding time of each wax, which was conducted as described above, are shown in the following table.

(The following is a blank space) As described above, the wax of the present invention has better gliding performance than conventional waxes, is not affected by snow quality, is easy to handle, and is easy to handle. It has the advantage that the amount used, wax application time, and sliding distance are significantly improved compared to conventional wax.

Patent applicant: Dowa Mining Co., Ltd.

Claims (2)

[Claims] (1) A sliding wax characterized by containing gallium. (2) Gallium and at least indium, zinc,
The sliding wax according to claim 1, which contains one selected from tin and aluminum.