{"id":12838,"date":"2026-03-14T16:52:22","date_gmt":"2026-03-14T08:52:22","guid":{"rendered":"https:\/\/hancarbon.com\/?post_type=dt_portfolio&p=12838"},"modified":"2026-03-21T16:14:45","modified_gmt":"2026-03-21T08:14:45","slug":"uhp-graphite-electrodes-high-current-density-low-electrical-resistance-for-eaf-steelmaking","status":"publish","type":"dt_portfolio","link":"https:\/\/hancarbon.com\/pt\/product\/uhp-graphite-electrodes-high-current-density-low-electrical-resistance-for-eaf-steelmaking\/","title":{"rendered":"Eletrodos de grafite UHP de alta densidade de corrente e baixa resist\u00eancia el\u00e9trica para fabrica\u00e7\u00e3o de a\u00e7o em forno el\u00e9trico a arco (EAF)."},"content":{"rendered":"
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Eletrodos de grafite UHP de alta densidade de corrente e baixa resist\u00eancia el\u00e9trica para fabrica\u00e7\u00e3o de a\u00e7o em forno el\u00e9trico a arco (EAF).<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dimens\u00f5es dos eletrodos:<\/strong><\/span><\/span><\/strong><\/span><\/span><\/p>

Di\u00e2metro Nominal<\/span><\/span><\/span><\/span><\/span><\/span>\u00a0(mm)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td>Di\u00e2metro real<\/span><\/span><\/span><\/span><\/span><\/span>\u00a0(mm)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td>Comprimento<\/span><\/span><\/span><\/span><\/span><\/span>\u00a0(mm)*<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
mm<\/span><\/span><\/span><\/span><\/span><\/span><\/td>polegada<\/span><\/span><\/span><\/span><\/span><\/span><\/td>M\u00e1ximo<\/span><\/span><\/span><\/span><\/span><\/span><\/td>Min<\/span><\/span><\/span><\/span><\/span><\/span><\/td>Ponto baixo<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
75<\/span><\/span><\/span><\/span><\/span><\/span><\/td>3<\/span><\/span><\/span><\/span><\/span><\/span><\/td>78<\/span><\/span><\/span><\/span><\/span><\/span><\/td>73<\/span><\/span><\/span><\/span><\/span><\/span><\/td>72<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1600<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
100<\/span><\/span><\/span><\/span><\/span><\/span><\/td>4<\/span><\/span><\/span><\/span><\/span><\/span><\/td>103<\/span><\/span><\/span><\/span><\/span><\/span><\/td>98<\/span><\/span><\/span><\/span><\/span><\/span><\/td>97<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1600<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
130<\/span><\/span><\/span><\/span><\/span><\/span><\/td>5<\/span><\/span><\/span><\/span><\/span><\/span><\/td>132<\/span><\/span><\/span><\/span><\/span><\/span><\/td>127<\/span><\/span><\/span><\/span><\/span><\/span><\/td>126<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1600<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
150<\/span><\/span><\/span><\/span><\/span><\/span><\/td>6<\/span><\/span><\/span><\/span><\/span><\/span><\/td>154<\/span><\/span><\/span><\/span><\/span><\/span><\/td>149<\/span><\/span><\/span><\/span><\/span><\/span><\/td>146<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
200<\/span><\/span><\/span><\/span><\/span><\/span><\/td>8<\/span><\/span><\/span><\/span><\/span><\/span><\/td>205<\/span><\/span><\/span><\/span><\/span><\/span><\/td>200<\/span><\/span><\/span><\/span><\/span><\/span><\/td>197<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
225<\/span><\/span><\/span><\/span><\/span><\/span><\/td>9<\/span><\/span><\/span><\/span><\/span><\/span><\/td>230<\/span><\/span><\/span><\/span><\/span><\/span><\/td>225<\/span><\/span><\/span><\/span><\/span><\/span><\/td>222<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
250<\/span><\/span><\/span><\/span><\/span><\/span><\/td>10<\/span><\/span><\/span><\/span><\/span><\/span><\/td>256<\/span><\/span><\/span><\/span><\/span><\/span><\/td>251<\/span><\/span><\/span><\/span><\/span><\/span><\/td>248<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
300<\/span><\/span><\/span><\/span><\/span><\/span><\/td>12<\/span><\/span><\/span><\/span><\/span><\/span><\/td>307<\/span><\/span><\/span><\/span><\/span><\/span><\/td>302<\/span><\/span><\/span><\/span><\/span><\/span><\/td>299<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
350<\/span><\/span><\/span><\/span><\/span><\/span><\/td>14<\/span><\/span><\/span><\/span><\/span><\/span><\/td>357<\/span><\/span><\/span><\/span><\/span><\/span><\/td>352<\/span><\/span><\/span><\/span><\/span><\/span><\/td>349<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
400<\/span><\/span><\/span><\/span><\/span><\/span><\/td>16<\/span><\/span><\/span><\/span><\/span><\/span><\/td>409<\/span><\/span><\/span><\/span><\/span><\/span><\/td>403<\/span><\/span><\/span><\/span><\/span><\/span><\/td>400<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800.2100<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
450<\/span><\/span><\/span><\/span><\/span><\/span><\/td>18<\/span><\/span><\/span><\/span><\/span><\/span><\/td>460<\/span><\/span><\/span><\/span><\/span><\/span><\/td>454<\/span><\/span><\/span><\/span><\/span><\/span><\/td>451<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800.2100<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
500<\/span><\/span><\/span><\/span><\/span><\/span><\/td>20<\/span><\/span><\/span><\/span><\/span><\/span><\/td>511<\/span><\/span><\/span><\/span><\/span><\/span><\/td>505<\/span><\/span><\/span><\/span><\/span><\/span><\/td>502<\/span><\/span><\/span><\/span><\/span><\/span><\/td>1800.2100<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
550<\/span><\/span><\/span><\/span><\/span><\/span><\/td>22<\/span><\/span><\/span><\/span><\/span><\/span><\/td>562<\/span><\/span><\/span><\/span><\/span><\/span><\/td>556<\/span><\/span><\/span><\/span><\/span><\/span><\/td>553<\/span><\/span><\/span><\/span><\/span><\/span><\/td>2100.2400<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr>
600<\/span><\/span><\/span><\/span><\/span><\/span><\/td>24<\/span><\/span><\/span><\/span><\/span><\/span><\/td>613<\/span><\/span><\/span><\/span><\/span><\/span><\/td>607<\/span><\/span><\/span><\/span><\/span><\/span><\/td>604<\/span><\/span><\/span><\/span><\/span><\/span><\/td>2100.2400<\/span><\/span><\/span><\/span><\/span><\/span><\/td><\/tr><\/tbody><\/table>

Dimens\u00f5es dos bicos c\u00f4nicos de 3 TPI:<\/strong><\/p>

Di\u00e2metro nominal (mm)<\/td>Tamanho dos mamilos (mm)<\/td>Dimens\u00f5es dos soquetes (mm)<\/td>Rosca (mm)<\/td><\/tr>
mm<\/td>polegada<\/td>D<\/td>L<\/td>d<\/td>1<\/td>d<\/td>H<\/td><\/tr>
225<\/td>9<\/td>139.7<\/td>0
-0.5<\/td>		203.2<\/td>0-1<\/td>90.73<\/td>0
-5<\/td>		<10<\/td>131.27<\/td>+0.5
0<\/td>		107.6<\/td>+7
0<\/td>		8.47<\/td><\/tr>
250<\/td>10<\/td>155.57<\/td>220.10<\/td>103.80<\/td>147.14<\/td>116.00<\/td><\/tr>
300<\/td>12<\/td>177.17<\/td>270.90<\/td>116.90<\/td>168.73<\/td>141.50<\/td><\/tr>
350<\/td>14<\/td>215.90<\/td>304.80<\/td>150.00<\/td>207.47<\/td>158.40<\/td><\/tr>
400<\/td>16<\/td>215.9<\/td>304.8<\/td>150<\/td>207.47<\/td>158.40<\/td><\/tr>
400<\/td>16<\/td>241.30<\/td>338.70<\/td>169.80<\/td>232.87<\/td>175.30<\/td><\/tr>
450<\/td>18<\/td>241.30<\/td>338.70<\/td>169.80<\/td>232.87<\/td>175.30<\/td><\/tr>
450<\/td>18<\/td>273.05<\/td>355.60<\/td>198.70<\/td>264.62<\/td>183.80<\/td><\/tr>
500<\/td>20<\/td>273.05<\/td>355.60<\/td>198.70<\/td>264.62<\/td>183.80<\/td><\/tr>
500<\/td>20<\/td>298.45<\/td>372.60<\/td>221.30<\/td>290.02<\/td>192.20<\/td><\/tr><\/tbody><\/table><\/div>


Dimens\u00f5es dos bicos c\u00f4nicos de 4 TPI<\/strong>:<\/strong><\/p>

Di\u00e2metro nominal (mm)<\/td>Tamanho dos mamilos (mm)<\/td>Dimens\u00f5es dos soquetes (mm)<\/td>Rosca (mm)<\/td><\/tr>
mm<\/td>polegada<\/td>D<\/td>L<\/td>d<\/td>1<\/td>d<\/td>H<\/td><\/tr>
75<\/td>3<\/td>46.04<\/td>0
-0.5<\/td>		76.20<\/td>0
-1<\/td>		20.80<\/td>0
-5<\/td>		<7<\/td>39.72<\/td>+0.5
0<\/td>		44.10<\/td>+7
0<\/td>		6.35<\/td><\/tr>
100<\/td>4<\/td>69.85<\/td>101.60<\/td>40.30<\/td>63.53<\/td>56.80<\/td><\/tr>
130<\/td>5<\/td>79.38<\/td>127.00<\/td>45.60<\/td>73.06<\/td>69.50<\/td><\/tr>
150<\/td>6<\/td>92.08<\/td>139.70<\/td>56.20<\/td>85.76<\/td>75.90<\/td><\/tr>
200<\/td>8<\/td>122.24<\/td>177.80<\/td>80.00<\/td>115.92<\/td>94.90<\/td><\/tr>
225<\/td>9<\/td>139.70<\/td>177.80<\/td>97.46<\/td>133.38<\/td>94.90<\/td><\/tr>
250<\/td>10<\/td>152.40<\/td>190.50<\/td>108.00<\/td>146.08<\/td>101.30<\/td><\/tr>
300<\/td>12<\/td>177.80<\/td>215.90<\/td>129.20<\/td>171.48<\/td>114.00<\/td><\/tr>
350<\/td>14<\/td>203.20<\/td>254.00<\/td>148.20<\/td>196.88<\/td>133.00<\/td><\/tr>
400<\/td>16<\/td>222.25<\/td>304.80<\/td>158.80<\/td>215.93<\/td>158.40<\/td><\/tr>
400<\/td>16<\/td>222.25<\/td>355.60<\/td>150.00<\/td>215.93<\/td>183.80<\/td><\/tr>
450<\/td>18<\/td>241.30<\/td>304.80<\/td>177.90<\/td>234.98<\/td>158.40<\/td><\/tr>
450<\/td>18<\/td>241.30<\/td>355.60<\/td>169.42<\/td>234.98<\/td>183.80<\/td><\/tr>
500<\/td>20<\/td>269.88<\/td>355.60<\/td>198.00<\/td>263.56<\/td>183.80<\/td><\/tr>
500<\/td>20<\/td>269.88<\/td>457.20<\/td>181.08<\/td>263.56<\/td>234.60<\/td><\/tr>
550<\/td>22<\/td>298.45<\/td>355.60<\/td>226.58<\/td>292.13<\/td>183.80<\/td><\/tr>
550<\/td>22<\/td>298.45<\/td>457.20<\/td>209.65<\/td>292.13<\/td>234.60<\/td><\/tr>
600<\/td>24<\/td>317.50<\/td>355.60<\/td>245.63<\/td>311.18<\/td>183.30<\/td><\/tr>
600<\/td>24<\/td>317.50<\/td>457.20<\/td>228.70<\/td>311.18<\/td>234.60<\/td><\/tr><\/tbody><\/table><\/div>



Especifica\u00e7\u00f5es RP:<\/strong><\/p>

Item<\/td>Unidade<\/td>Di\u00e2metro nominal (mm)<\/td><\/tr>
75~130<\/td>150~225<\/td>250~300<\/td>350~500<\/td><\/tr>
Resistividade el\u00e9trica m\u00e1xima<\/td>Eletrodo<\/td>\u03bc\u03a9\u00b7m<\/td>8.5<\/td>9.0<\/td>9.0<\/td>9.0<\/td><\/tr>
Mamilos<\/td>6.5<\/td>6.5<\/td>6.5<\/td>6.5<\/td><\/tr>
Resist\u00eancia \u00e0 flex\u00e3o m\u00ednima<\/td>Eletrodo<\/td>MPa<\/td>9.8<\/td>9.8<\/td>7.8<\/td>6.4<\/td><\/tr>
Mamilos<\/td>13.0<\/td>13.0<\/td>13.0<\/td>13.0<\/td><\/tr>
M\u00f3dulo de elasticidade m\u00e1ximo<\/td>Eletrodo<\/td>GPa<\/td>9.3<\/td>9.3<\/td>9.3<\/td>9.3<\/td><\/tr>
Mamilos<\/td>14.0<\/td>14.0<\/td>14.0<\/td>14.0<\/td><\/tr>
Densidade aparente m\u00ednima<\/td>Eletrodo<\/td>g\/cm\u00b3<\/td>1.58<\/td>1.52<\/td>1.52<\/td>1.52<\/td><\/tr>
Mamilos<\/td>1.68<\/td>1.68<\/td>1.68<\/td>1.68<\/td><\/tr>
CTE M\u00e1x. (100\u00baC~600\u00baC)<\/td>Eletrodo<\/td>10\u207b\u2076 \/\u00baC<\/td>2.9<\/td>2.9<\/td>2.9<\/td>2.9<\/td><\/tr>
Mamilos<\/td>2.7<\/td>2.7<\/td>2.8<\/td>2.8<\/td><\/tr>
Ash Max<\/td>%<\/td>0.5<\/td>0.5<\/td>0.5<\/td>0.5<\/td><\/tr><\/tbody><\/table><\/div>


\u00a0Especifica\u00e7\u00f5es da HP:<\/strong><\/p>

Item<\/td>Unidade<\/td>Di\u00e2metro nominal (mm)<\/td><\/tr>
200~400<\/td>450~500<\/td>550~600<\/td><\/tr>
Resistividade el\u00e9trica m\u00e1xima<\/td>Eletrodo<\/td>\u03bc\u03a9\u00b7m<\/td>6.8<\/td>7.5<\/td>7.0<\/td><\/tr>
Mamilos<\/td>5.5<\/td>5.5<\/td>5.0<\/td><\/tr>
Resist\u00eancia \u00e0 flex\u00e3o m\u00ednima<\/td>Eletrodo<\/td>MPa<\/td>10.5<\/td>9.8<\/td>10.0<\/td><\/tr>
Mamilos<\/td>14.0<\/td>14.0<\/td>16.0<\/td><\/tr>
M\u00f3dulo de elasticidade m\u00e1ximo<\/td>Eletrodo<\/td>GPa<\/td>12.0<\/td>12.0<\/td>12.0<\/td><\/tr>
Mamilos<\/td>16.0<\/td>16.0<\/td>18.0<\/td><\/tr>
Densidade aparente m\u00ednima<\/td>Eletrodo<\/td>g\/cm\u00b3<\/td>1.60<\/td>1.60<\/td>1.65<\/td><\/tr>
Mamilos<\/td>1.70<\/td>1.70<\/td>1.75<\/td><\/tr>
CTE M\u00e1x. (100\u00baC~600\u00baC)<\/td>Eletrodo<\/td>10\u207b\u2076 \/\u00baC<\/td>2.4<\/td>2.4<\/td>2.4<\/td><\/tr>
Mamilos<\/td>2.2<\/td>2.2<\/td>2.2<\/td><\/tr>
Ash Max<\/td>%<\/td>0.3<\/td>0.3<\/td>0.3<\/td><\/tr><\/tbody><\/table><\/div>


Especifica\u00e7\u00f5es UHP:<\/strong><\/p>

Item<\/td>Unidade<\/td>Di\u00e2metro nominal (mm)<\/td><\/tr>
300~400<\/td>450~500<\/td>550~600<\/td><\/tr>
Resistividade el\u00e9trica m\u00e1xima<\/td>Eletrodo<\/td>\u03bc\u03a9\u00b7m<\/td>6.2<\/td>6.3<\/td>5.8<\/td><\/tr>
Mamilos<\/td>4.5<\/td>4.5<\/td>4.0<\/td><\/tr>
Resist\u00eancia \u00e0 flex\u00e3o m\u00ednima<\/td>Eletrodo<\/td>MPa<\/td>11.5<\/td>11.5<\/td>11.0<\/td><\/tr>
Mamilos<\/td>20.0<\/td>20.0<\/td>22.0<\/td><\/tr>
M\u00f3dulo de elasticidade m\u00e1ximo<\/td>Eletrodo<\/td>GPa<\/td>14.0<\/td>14.0<\/td>14.0<\/td><\/tr>
Mamilos<\/td>20.0<\/td>20.0<\/td>22.0<\/td><\/tr>
Densidade aparente m\u00ednima<\/td>Eletrodo<\/td>g\/cm\u00b3<\/td>1.71<\/td>1.70<\/td>1.68<\/td><\/tr>
Mamilos<\/td>1.76<\/td>1.78<\/td>1.80<\/td><\/tr>
CTE M\u00e1x. (100\u00baC~600\u00baC)<\/td>Eletrodo<\/td>10\u207b\u2076 \/\u00baC<\/td>1.5<\/td>1.5<\/td>1.5<\/td><\/tr>
Mamilos<\/td>1.4<\/td>1.4<\/td>1.3<\/td><\/tr>
Ash Max<\/td>%<\/td>0.3<\/td>0.3<\/td>0.3<\/td><\/tr><\/tbody><\/table><\/div>


Capacidade de condu\u00e7\u00e3o de corrente de eletrodos de grafite RP<\/strong><\/p>

Di\u00e2metro nominal (mm)<\/td>Capacidade de condu\u00e7\u00e3o de corrente (A)<\/td>Densidade de corrente (A\/cm\u00b2)<\/td><\/tr>
75<\/td>1000~1400<\/td>22-31<\/td><\/tr>
100<\/td>1500~2400<\/td>19-30<\/td><\/tr>
130<\/td>2200~3400<\/td>17~26<\/td><\/tr>
150<\/td>3000~4500<\/td>16-25<\/td><\/tr>
200<\/td>5000~6900<\/td>15-21<\/td><\/tr>
250<\/td>7000~10000<\/td>14-20<\/td><\/tr>
300<\/td>10000~13000<\/td>14~18<\/td><\/tr>
350<\/td>13500~18000<\/td>14~18<\/td><\/tr>
400<\/td>18000~23500<\/td>14~18<\/td><\/tr>
450<\/td>22000~27000<\/td>13~17<\/td><\/tr>
500<\/td>25000~32000<\/td>13~16<\/td><\/tr>
550<\/td>30000~42000<\/td>13~16<\/td><\/tr>
600<\/td>40000~53000<\/td>13~16<\/td><\/tr><\/tbody><\/table><\/div>


Capacidade de condu\u00e7\u00e3o de corrente de eletrodos de grafite HP<\/strong><\/p>

Di\u00e2metro nominal (mm)<\/td>Capacidade de condu\u00e7\u00e3o de corrente (A)<\/td>Densidade de corrente (A\/cm\u00b2)<\/td><\/tr>
200<\/td>5500~9000<\/td>18-28<\/td><\/tr>
250<\/td>8000~13000<\/td>18-25<\/td><\/tr>
300<\/td>13000~17400<\/td>17~24<\/td><\/tr>
350<\/td>17400~24000<\/td>17~24<\/td><\/tr>
400<\/td>21000~31000<\/td>16~24<\/td><\/tr>
450<\/td>25000~40000<\/td>15~24<\/td><\/tr>
500<\/td>30000~48000<\/td>15~24<\/td><\/tr>
550<\/td>44000~58000<\/td>15~24<\/td><\/tr>
600<\/td>52000~67000<\/td>15~24<\/td><\/tr><\/tbody><\/table><\/div>


Capacidade de condu\u00e7\u00e3o de corrente de eletrodos de grafite UHP<\/strong><\/p>

Di\u00e2metro nominal (mm)<\/td>Capacidade de condu\u00e7\u00e3o de corrente (A)<\/td>Densidade de corrente (A\/cm\u00b2)<\/td><\/tr>
300<\/td>15000~22000<\/td>20~30<\/td><\/tr>
350<\/td>20000~30000<\/td>20~30<\/td><\/tr>
400<\/td>25000~40000<\/td>19~30<\/td><\/tr>
450<\/td>32000~45000<\/td>19~27<\/td><\/tr>
500<\/td>38000~55000<\/td>18~27<\/td><\/tr>
550<\/td>45000~70000<\/td>18~27<\/td><\/tr>
600<\/td>50000~97000<\/td>18~27<\/td><\/tr><\/tbody><\/table><\/div>



Precau\u00e7\u00f5es de utiliza\u00e7\u00e3o:<\/strong>
1. Ao selecionar o di\u00e2metro do eletrodo para a fabrica\u00e7\u00e3o de a\u00e7o, leve em considera\u00e7\u00e3o a capacidade de corrente do eletrodo.
2. Os eletrodos de grafite devem ser protegidos da chuva e da neve durante o transporte e o armazenamento. Antes do uso, devem ser secos.
3. Os eletrodos de grafite devem ser manuseados com cuidado durante o carregamento, descarregamento e transporte para proteger as roscas e evitar danos.
4. Antes de conectar o eletrodo, a rosca do soquete do eletrodo deve ser limpa com ar comprimido e, em seguida, os niples e o eletrodo devem ser apertados.
5. O dispositivo de eleva\u00e7\u00e3o do eletrodo n\u00e3o deve vibrar durante a opera\u00e7\u00e3o para evitar que os bicos se soltem e se desloquem.
6. O suporte do eletrodo n\u00e3o deve posicionar o eletrodo pr\u00f3ximo ao encaixe do mamilo.
7. Ao carregar o forno, um grande bloco de a\u00e7o deve ser colocado na parte inferior para evitar que o material desmorone e quebre o eletrodo durante a fus\u00e3o.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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