인터맥스 (InterMax)

Copper sheath aluminum bus bar produced by the parallel continuous casting method.

Insert the dissolved copper liquid into the vacuum compound furnace to form
the copper pipe and insert the dissolved aluminum liquid into the copper pipe.

Surface interface fusion is formed as the aluminum and the copper are collaterally melted
which are in the inner walls of the surface of the melted copper pipe at a high temperature.

The copper and aluminum which formed the surface fusion are formed
as a new compound through a chemical reaction and the new
combination(metallurgic combination) is completed, due
to which the surface interface reaction is realized.

The two metal liquids form the stable crystallization zone after being cooled correctly the 2nd
time and the 3rd time after passing the compound molding (this zone is the closed zone filled
with the metal liquid) and any liquid can not enter it.) and when the coagulated bar(sheared
billet) is output after going through the moving processor, the copper aluminum billet is
completed.

Product photos

Advantages of the parallel continuous casting method

The complex molding of the product is stable and reliable.
The production process is short and environment-friendly and effective.
The combination performance is excellent due to the metallurgic combination of the bonding interface of the copper aluminum.
Transportation and the assembly are excellent due to the reduction of weight and since the raw price reduction is high, it can be used as an alternative material, thus resource-saving can be achieved and the conductivity is high.
The copper layer thickness adjustment scope is the large and high current transmission is possible.

Analysis of the combination phase of the bus bar of the parallel continuous casting method

Metallographic photo of the combination status among the atoms in the combined interface.

SEM and EDS interface analysis result

Scanned photo of the Interface combination surface

IMC(Intermetallic Compound/inter-metal compound)
Management 2-0um(GBT standard : 30um or under)

SEM(Scanning Electron microscope)

It can be magnified by 200,000 times using the electron microscope. It is the measurement equipment that magnifies the sample by imaging it electronically using the scanning in the various types of electronics or through a bombardment.

EDS(Energy Disperse Spectrometer)

It is the probe that analyzes a sort of the energy spectrum and is the equipment that generally equips with the electron microscope and analyzes the characteristics of the electron beam which is dispersed from the non-floating substance and determines the chemical elements and contents.

Technical specification

Compound volumetric weight	tensile strength	elongation percentage	density	surface combination strength	maximum resistance	volumetric conductivity
(%)	Mpa	(%)	g/㎤	Mpa	Ω.㎟/m	≥%IACS
20	≥110	≥25	3.94	≥40	0.0255	67.6
25	≥115	≥30	4.25	≥40	0.02498	69
30	≥120	≥35	4.56	≥40	0.02424	71.1

Permitted currents for the copper coated aluminum bus bar

Currents which permits the environmental temperature of 25oC, temperature range of 50K, AC frequency of 60Hx and vertical test.
In case of the parallel, if the width is less than 60mm, the data in the table should be multiplied by 0.95 and if the width is over 60mm, the data in the table should be multiplied by 0.92.
Thickness/mm	width/mm	copper volumetric ratio 20%		copper volumetric ratio 25%		copper volumetric ratio 30%		Note.
Thickness/mm	width/mm	DC	AC	DC	AC	DC	AC	Note.
3	15	193	193	198	198	203	203
	20	241	241	247	247	254	254
	25	292	292	300	300	308	308
	30	333	333	342	342	351	351
	40	420	420	431	431	443	443
	50	498	497	511	510	525	524
4	15	219	219	225	225	231	231
	20	283	283	291	291	299	299
	25	342	342	351	351	360	360
	30	391	391	402	402	413	413
	40	500	500	514	514	528	528
	50	597	588	613	604	630	620
	60	702	689	721	708	740	727
	70	794	780	815	801	837	823
	80	881	864	905	887	929	911
	100	1093	1060	1122	1089	1152	1119
5	15	258	258	265	265	272	272
	20	325	325	334	334	343	343
	25	387	387	397	397	408	408
	30	443	443	455	455	467	467
	40	569	568	584	583	600	599
	50	679	669	697	687	716	706
	60	796	785	818	806	840	828
	70	913	898	938	922	963	947
	80	1027	1006	1055	1034	1083	1062
	100	1274	1236	1308	1269	1343	1304
6	15	277	277	284	284	292	292
	20	357	357	367	367	377	377
	25	429	429	441	441	453	453
	30	490	490	503	503	517	517
	40	625	618	642	635	659	652
	50	758	746	778	766	799	787
	60	885	871	909	894	934	918
	70	1020	1000	1048	1027	1076	1054
	80	1130	1104	1161	1134	1192	1164
	100	1384	1344	1421	1380	1459	1417
	120	1622	1563	1666	1605	1711	1648
	150	1850	1760	1900	1807	1951	1856
8	15	332	332	341	341	350	350
	20	430	430	442	442	454	454
	25	512	511	526	525	540	539
	30	594	587	610	603	626	619
	40	738	728	758	748	778	768
	50	892	874	916	898	941	922
	60	1042	1018	1070	1046	1099	1074
	70	1195	1161	1227	1192	1260	1224
	80	1336	1297	1372	1332	1409	1368
	100	1626	1564	1670	1606	1715	1649
	120	1896	1812	1947	1861	2000	1911
	150	2208	2070	2268	2126	2329	2183
10	15	401	401	412	412	423	423
	20	494	493	507	506	521	520
	25	585	577	601	593	617	609
	30	674	663	692	681	711	700
	40	847	831	870	853	893	877
	50	1019	994	1046	1021	1074	1048
	60	1186	1153	1218	1184	1251	1216
	70	1353	1309	1390	1345	1428	1381
	80	1515	1458	1556	1497	1598	1537
	100	1838	1738	1888	1785	1939	1833
	120	2150	2013	2208	2068	2268	2124
	150	2462	2283	2528	2345	2596	2408
12	15	448	448	460	460	472	472
	20	559	550	574	565	589	581
	25	666	656	684	673	702	691
	30	756	743	776	763	797	784
	40	939	918	964	943	990	968
	50	1126	1095	1156	1125	1187	1155
	60	1310	1267	1345	1301	1381	1336
	70	1495	1441	1535	1480	1576	1520
	80	1672	1594	1717	1638	1763	1682
	100	2025	1893	2080	1944	2136	1996
	120	2375	2193	2439	2252	2505	2313

Main usages

Vehicle

Sizes that can be used

width 15~50mm

Sizes that can be used

Vehicle battery pack conducing bus bar
Reduction of energy and the raw price due to the lightness of the weight of the battery pack.
Over 20% of the raw price reduction and over 50% of weight reduction
is possible than the cooper bus bar.