JPS596361A - Preparation of conductive high strength and heat resistant aluminum alloy twisted wire - Google Patents

Abstract

PURPOSE:To obtain the titled twisted wire especially improved in bending characteristics without losing the conductivity, the strength and the heat resistance of a base wire, by a method wherein a molten Al alloy containing Zr, Fe and Cu or/and Mg is cast while ultrasonic waves are applied thereto and, after hot rolling, the cast alloy is roughly draw in in such a state that a temp. and an area reducing ratio are prescribed to be twisted while area reducing processing is further applied. CONSTITUTION:A molten Al alloy containing, on the basis of a wt. ratio, 0.05-0.2% Zr, 0.1- 0.8% Fe and 0.2-20wt. times with respect to the Fe content of 0.03-0.4% Cu or/and 0.01- 0.4% Mg is prepared. Subsequently, this molten Al alloy is (semi) continuously cast at a speed of 10mm./sec or more while ultrasonic waves are applied thereto in order to improve bending characteristics through the comminiution of a crystal size and a crystallized substance. In the next step, this cast ingot is hot rolled into a roughly drawn wire by area reducing processing of 80% or more without reheating the same and the roughly drawn wire is further subjected to area reducing processing of 80% or more while the wire temp. is held at 100 deg.C. Subsequently, this roughly drawn wire is subjected to heat treatment at 150-250 deg.C and the obtained base wires are twisted while area reducing processing of 5% or more is applied thereto by one pass reduction to obtain an objective conductive high strength and heat resistant Al alloy twisted wire.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a $4-use mayluminicum joint twister, especially with four ridges of am and C strands, strength and heat resistance, and one bending property without bending. It is a set of numbers.

The 4411M secondary rack is made of aluminum for introducing droplets (Sho M).
l) consisting of J1g straight twisted aluminum strands.
(AC8R) is used, but in the special J8 44 series, a heat-resistant aluminum housing (TAC8RJ) is used, which is a heat-resistant aluminum housing using ms-type T6 type steel.

A I-Zr yarn is used for Jg- for TACaR, but this yarn is not very strong regardless of the 'lr-containing filter, so it is not suitable for long diameter 1 delivery hole. It was not used for convenience, and it was also an all-aluminum joint tray without an iron core (it was also used in AAACJ).

For this reason, for the long diameter length of 4 m, wires made of high-strength 5005 thread alloy (AI-Q, 5-1,1 w 1% Mg) are twisted together, and the steel core is made of aluminum and twisted. Although the tensile strength of this Gobon type rope is 24 and 4, the heat resistance is on the same level as EUAJ rope.
It was not used for the Daisoho x84.

In recent years, with the rise in demand for power lines, there has been a demand for cable lines with a high level of sensitivity for use in Otani Okimo. 44 sex and -
It has heat properties and has the same strength as the 5005 Itoai.
It was developed on the same level as Al-Zr-.

The synthetic 67-based system is twisted so that a heat-resistant aluminum platform for guiding can be twisted.

This twist 41131 is applied to AI-7, r- by slow or semi-continuous casting of the threads, and the rolled ingot is silently cast without tangent TΦ. and this t~Ia
The material is made by stretching and processing it into a plain material, which is then twisted into several pieces.Although the strength and thermal properties of the material are uncertain, it has poor bending properties, and therefore, four frames are used for construction. It is easy to break the #S thread when passing through a fishing table, and is it even more suitable for use as an AAAC without twisted wire or iron core bond for large vomit flow between the spans? I rarely had to change the number.

The present invention has been improved upon this, and as a result of various efforts, the S4 power l1l
t Heat aluminum alloy twisting and ℃ cable induction.

We have developed a method of twisting that has the same bending properties as above without deteriorating the degree of bending and heat resistance, and can be used as a twister with a large diameter or AAAU.

Zro, os~o, zwt% and し'eO, 1~Q, 8
Including wt%, UuU, U3~Q, 4wt%, Mg L
J, 01 to 0.4 wt% import within 1' time or 2 times
Ratio of Jk: rle containing filter (fe-nomiya/eu-h including 0.2 to 20, the remainder is A1 and 4m of straight striped aluminum) 4@ or After semi-continuous casting, the obtained ingot was hot pressed without tanning.
This is a twisting ridge where multiple strands of strands of wire are twisted together in the 3rd floor 1-C1! H! There are 8 in the area, aluminum tsum joint r
; 1tljkt'lO Seki/S"EC" Casting was carried out at a binding speed of 1@11 with high precision, and the excellent ingot was rolled at 550-350℃ (/Jd!IJt' rolling start L 1
: 300-120℃ (ends at /JtM, 8 in the darkness)
The area reduction process of 0% or more becomes 4T and is considered as rough drawing, and the rough drawing line is stretched during ζ double edge stretching #! 80% or more of Ikkoto Nikko is carried out by keeping m at 100-C or higher, and then subjected to oxidation treatment at 150-250C for 0.5-10 hours at a time to remove the bare metal. 111/Jll + rJJ4
It is made of gold and is characterized by being twisted while twisting.

In other words, one @Akira is made by layering the upper grip of the axis.

By performing super-d wave or semi-casting without applying ultra-d waves at a gradient speed of t'lUjim/see or higher, it is possible to prevent the precipitation of heat resistance and force ratio, and to form crystals. The grains and crystallized grains are imitated by the L, 'C bending properties. To prevent precipitation of r, i+'e4.

It's time to start pressing the tip once from 550 to 350C, and scrape the sweetfish at a rate of 300 to 1cm.
More than 80% MIl [l processing'& /JIJ
E-C1 Arahiki's garb'-Original, g to uniform'Mj V-side graduation *
Processed and fully work-hardened gold.

This) was machined with a N11 round wire and connected to the C cable, but it was 41 during the processing of the wire! ! Hold the temperature below 1υOC'
``Preventing low FT of temperature resistance due to low kneading pure hardening by C processing heat, sufficiently work hardening by adding kA processing of 80% or more, and then 150~25L)' Heat treatment is performed at a temperature of C for 0.5 to 10 hours to further improve bendability and flexibility.

In this way, C2 is obtained/2: A multiple birch is laid on a twisting stand to make a twisted wire C;, 51 or more a! diJ7Jl] Engineering'jk: The bending characteristics of the cable wire were made to be the same as above by 13tL6 torsion strain in addition to the heat generated by Roe-2 and the strands by twisting while adding.

However, in the process invention, the temperature and alloy set Ili were limited to Φ for the following reason.

Z, the content was limited to 0905~g, 2wt% (hereinafter referred to as Fwt). -Thermal effect is small, and if it exceeds 0.2%, the +Ifi property is the same as above, but the conductivity +aF becomes strong, so it is difficult *k
'eft consideration Y was limited to 0.1-0.8%.
This is because with 1% wood, the same properties as 1 strength and 1191 #s properties cannot be obtained regardless of the lJr content, and if it exceeds 0.8%, it becomes difficult to adhere to the 44-temperature.

In addition, Cu containing ml YO, 03-0.4%, Mg
The reason why the content of Cu and/or Mg is limited to 0.01 to 0.4% is that if the content of Cu and/or Mg is below the F limit, the bending properties will not be improved; This is because F becomes more attached, and the content of Cu or/and ivg is
The ratio of the e content to 0.2 to 20 for PE-containing steel/Cu+mg-containing filter is that at 0.2mm, a low F with a $4E rate is desirable, and when it exceeds 20, bending properties are obtained. This is so that it will not happen.

In the present invention, continuous or semi-continuous #rI at 8 °C, continuous or semi-continuous
I # Consideration 4F! t%: 1O deception/exploitation ec or above.

At the end of 1 second, zr, J+e precipitation occurs.

This is because the heat resistance and properties are low FT, and the reason why the super sweat wave was applied during casting is to refine the 4 grains of I and 11 crystals and change the bending properties. The reason why the ingot obtained in this way is rolled in a continuous manner is to prevent precipitation of 'lr', 'e', etc., which causes the loss of wIs properties due to reheating. Yes, - 550~350C is added to 1 degree of rolling start between M of the lump is start/! ! If the temperature is higher than 550℃, it is cold 1.
#! j Work hardening in stretching process becomes smaller, 350
This is because if it is lower than 'C, Fe will not be homogenized and the heat resistance will be low FT. In addition, the reason why the hot rolling final rm degree was limited to 300-120℃ is because the slope does not improve if the final T temperature is higher than 3υOC.
This is because precipitation of i occurs and the thermal properties of 1Ii1 become low F.
If the processing is continued until the knitting degree is lower than 120° C., the hardening phenomenon of the backing metal during processing will be large and the icm heat property will be reduced to Ff. Furthermore, the reason why the area reduction processing rate in fil...pressure shielding was limited to 80% or more is because processing of 80% virgin material cannot provide sufficient strength.

Furthermore, the S eye temperature during wire drawing in ~1411 drawing process? 1
#i was set after 00G because -1 once during wire drawing was 10
When the temperature exceeds 0℃, a-sintered brocade hardness 16 boundary demand occurs, and the heat resistance becomes low FT.
The reason why #i was set at % or more is that 80 caries C cannot be sufficiently work-hardened. In addition, the heat treatment temperature after this processing was limited to yisu ~ 2 soc, and the processing time: 0.5 ~ io 1 yen, because even if the heating temperature is 150 C, it is sufficient to heat for 110.5 hours during the treatment. This is because even if the heat treatment effect is not obtained and the side heat m degree exceeds 2547c&, even if the ria during treatment exceeds the lO time t', the low strength F is more likely than the improvement of bending properties and soft Iglc properties.

In this way, in order to twist four birch trees together to make a strand, the addition of more than 5% of the cable birch C, two additions, one pass of reduc, and the addition of 5% or more of the tatami-garo work was a result of the reduction in surface area as in the 1st century. This is because the bending special order is not the same due to the heat during processing and twisting due to the imaginary of gallo errekin λjiri. ``It is not possible to obtain the same properties as described above in terms of bending properties, and the same properties as above in 1 bending property cannot be obtained with the sterilization processing rate of 5% due to the small heat generation caused by processing. The bending properties of gtiii processing are similar, but the effect is better, but the larger effect is not superior, and the at&11oJJa processing during twisting is l pass or twisting, so there is 'C'.

The following is a description of one example of the present invention.

fii99.6% (/J g CA l steady to, Al
-5%'lr, AI-d%'e.

Using Al-50% Cu of each grade and 1g4i body, we fabricated the 41t relatives shown in Table 1, and we made this using belt-and-wheel type 4-sequence solid steel. Continuously pour #I into the mold of Kinakara 2000-, and reheat the superior lump T rx < 4 Continuously press the end 4!
Al7f extended.

Using 84 pieces of this m5it's, add a thinning sword Loe through the die in 1 pass, twist it on top of 1 Yogara steel, and 6. Shoto I11#% aluminum alloy il! Manufacture ka. These twisted wires were cut into lengths of Jk1 m and disassembled, and each of the '4 series wires was kept long.
4! , thermal properties and bending properties were measured, and the sublayer results and loading conditions of Z07 are listed in Table 2.

In addition, the tensile strength was measured by Amsler type tensile test SAM, and the conductivity was measured by measuring the air resistance by 1 using Kelvin double bridge.
Calculated by adding JIJ. Heat resistance was determined by heating the sample at 230℃ for 1 hour and then measuring the tensile strength.
It is expressed as the ratio of tensile strength after heat treatment to tensile strength after heating. Also, the listening characteristic is 1 of the sample t'tt family! Holding her open twice as wide as Yu's and bending her left and right hands repeatedly,
Measure the number of bends until breaking 11#T. The number of bends is to bend 90 degrees once, return to the original position twice, and bend 90 degrees to the right.
°Bending 1: 3 times, return to position 7c 4 times, and repeat until fracture T.

It is clear from the fI1 table and 57V12 that the twisting machine system manufactured from the present invention method 361 to 14 has a tensile strength of 44!56.1 to 57.1%lA(,'19% .5~27.6 Da/-1 Steel thermal properties 94.9~97.1
%1 Custom-made indication of 36 to 42 bends, conventional method A6
38~Jun 41 manufactured with 4 wires and 4 ratios,
The tensile strength and TM thermal properties are in the same issue, but the number of bending times is much higher? Gold has a bending property that is approximately 3 times greater.

On the other hand, the method of the present invention adds the white path composition or 4#! The transmission case is removed and the magnetic permeability is at ΦHinu method shoulder 15-437.

Tensile Thread % - A6 curve, the interest rate is that the number of bends is inferior.

That is, the comparative method A15''c with less zr content*OY: 9s has low heat resistance, and the comparative method with less zr content (Jt', the tensile strength of %17) and 1- Comparative Toeifumu 9C using comparative synthetic 8ze with low heat resistance and low lVlg or/and eu content does not accommodate bending custom orders and has high Zr content.
Comparison method using comparison site T with many lj+nugosha R, iVg or/and Uu-containing otori, %18°/%
18.420 all have low magnetic permeability.

In addition, the ratio of "ET filter" to Mg or/and Cu base is 0.
．． Comparison method using Uf smaller than 2/l621
In this case, the magnetic permeability is low and the ratio is smaller than 20.
In both comparison methods 422 and 623, the bending properties are not renumbered.

In addition, under manufacturing conditions, - specific yield method 424
%Hinko method/% 27 where the rolling start temperature is low, %Hinko method/1629 where the rolling path r is pasted once, and %Hinko method 431 where the temperature is still high during the stretching process, all have poor heat resistance.

Comparison method of casting without applying supergi technique/Kame 25. mll after stretching & processing once yes comparison method 433, same processing 1-
However, in the layer comparison method A635, the bending custom order was not settled in any case, the rolling start m 11' was too low, the specific yield method was 26, and the rolling process was too low, and the specific yield method was too low, viAi28. Silk+M) Comparison method 43 with a small processing rate by rolling (J, Comparison method with a small processing rate by cold rolling g2, % 32. Comparison method A634 with a low processing rate due to rolling and heat treatment 1) In the comparison method 436, which has a long output, the tensile throughput is low, and in the LtS method 37, where the 1 bus reduction v yon of the stranded wire is small at 8° C., the bending properties are not listed.

(JJ) According to the present invention, the conventional car heat aluminum platform is free to use.
4: 'a' What is it and is it much more protected than the characteristic NrΦ?
System flIJ! t / Burning Sword 1 - Silent Aluminum Coupled and Shielded Twist - is made into a wire with `` 9 pieces and a sarumono C1 major axis 1 ... Komizu - and Hotaru Aluminum stand and twisted. The young fruit, which is not suitable for the temple, is withered.

Claims (1)

[Claims] Zr0.05~U, 2wt% and io, i~o, sw
Contains t%, Cuona~g, 4wt%, MgU, 01
~g, either one or two in a circle of 4wt%:
ni'e combination i1t ratio t *l e content/Cu0M
The aluminum alloy containing 0.2 to 20 g and the remainder A1 and wire impurities is cast in a 4- or half-throat bowl, and the resulting lump is cast! + Temperature pressure without heating ℃ rough drawing line, this 'to'? As a reward for twisting multiple strands of strands drawn in a vIl field, aluminum was melted at 17 sec at a casting speed of 17 sec or more, and the resulting mass was rolled at 15 kI & 1. Na 5
Starting from 50-350C once, 300-120-C
At the end of JL, the area is reduced by 80% or more at the threshold and the wire is made into a rough drawing wire, and when the rough drawing wire is drawn, the fiber 11 being drawn is kept at a temperature of 100°C or more. 801 or higher processing? Then, at a temperature of 150 to 250°C, the temperature is 0.
Heat-treated for 5 to 10 hours to obtain a bare wire, and used it for twisting M cables.
Shima Riki thermal aluminum alloy m# for conductive wire with excellent bending properties that can be twisted while applying tadIJ processing.
! manufacturing method