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		<h1>THÉP TRÒN ĐẶC 2379</h1>
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			<li>Thứ tư - 21/07/2021 08:43</li>
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			<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Thép đặc chủng 2379 là thép hợp kim cán nguội, thép công cụ hàm lượng carbon cao, chrome cao, thép hợp kim có bề mặt chống ăn mòn kim loại, có độ bền cứng toàn phần cao.</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Độ cứng của nó được hình thành qua quá trình nhiệt luyện với phương pháp để nguội trong không khí, giảm thiểu tối đa độ vặn xoắn sau khi nhiệt luyện.</span></span></span></span></span><br  />
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			<strong><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">MÁC THÉP TƯƠNG ĐƯƠNG&nbsp;THÉP TRÒN ĐẶC 2379</span></span></span></span></span></strong>
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<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">THÀNH PHẦN HÓA HỌC THÉP TRÒN ĐẶC 2379</span></span></span></b></span></span></span>

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			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">1.50-1.60</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">0.10-0.40</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">0.15-0.45</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">≤0.030</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">≤0.030</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">11.0-12.0</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">0.90-1.10</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:47.3500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="63"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">0.60-0.80</span></span></span></span></span></td>
		</tr>
	</tbody>
</table>
<br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">TÍNH CHẤT CƠ LÝ&nbsp;THÉP TRÒN ĐẶC 2379</span></span></span></b></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">NHIỆT LUYỆN&nbsp;THÉP TRÒN ĐẶC 2379&nbsp;</span></span></span></b></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">Ủ mềm</span></span></span></b></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Nung nóng thép lên 840-880</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">o</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C xong để nguội từ từ. Tiến trình này hoàn thành cho cho thép có độ cứng tối đa 255HB.</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">Giảm độ mỏi của thép, giảm căng thẳng cho thép.</span></span></span></b></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Giảm độ mỏi của thép sẽ giảm độ mỏi cơ khí khi chế tạo máy, tiến trình này được thực hiện bằng cách nung nóng thép lên tới 650-700</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C rồi để làm nguội trong không khí. Kết quả sẽ hạn chế sự vặn xoắn của thép sau quá trình nhiệt luyện.</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><b><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="font-weight:bold">Làm cứng thép</span></span></span></b></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Làm cứng thép bằng nhiệt độ 1000-1050</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C bằng phương pháp tôi trong dầu hoặc trong nước (500-550</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C), làm lạnh trong nước hoặc trong không khí. Độ cứng hoàn thiện sẽ đạt 62-64HRC.</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Tôi thép</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Tôi thép ở nhiệt độ 150-500</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C. </span></span></span></span></span>

<table class="MsoTableGrid" style="border-collapse:collapse; border:1.0000pt solid windowtext; text-align:justify; font-family:&#039;Times New Roman&#039;; font-size:10pt">
	<tbody>
		<tr>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid windowtext; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="104"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Nhiệt độ </span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">100</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">200</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">300</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">400</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">525</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">550</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">600</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:1.0000pt solid windowtext" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">700</span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7000pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:1.0000pt solid windowtext; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="104"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Độ cứng HRC</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">63</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">61</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">58</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">58</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">59</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">58</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">51</span></span></span></span></span></td>
			<td style="border-bottom:1.0000pt solid windowtext; width:78.7500pt; padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ; border-left:none; border-right:1.0000pt solid windowtext; border-top:none" valign="top" width="105"><span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">35</span></span></span></span></span></td>
		</tr>
	</tbody>
</table>
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Rèn thép</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Rèn thép ở nhiệt độ 850-1050</span></span><sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;"><span style="vertical-align:super">0</span></span></span></sup><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">C.</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Khả năng chế tạo</span></span></span></span></span><br  />
<span style="text-justify:inter-ideograph"><span style="line-height:150%"><span style="font-family:Calibri"><span style="font-size:14.0000pt"><span style="font-family:&#039;Times New Roman&#039;">Kháng lại sự ăn mòn</span></span></span></span></span><br  />
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