TH177208B - Manufacturing method of coated super high strength steel plate Or without coating And the steel sheet obtained from this - Google Patents
Manufacturing method of coated super high strength steel plate Or without coating And the steel sheet obtained from thisInfo
- Publication number
- TH177208B TH177208B TH1701000015A TH1701000015A TH177208B TH 177208 B TH177208 B TH 177208B TH 1701000015 A TH1701000015 A TH 1701000015A TH 1701000015 A TH1701000015 A TH 1701000015A TH 177208 B TH177208 B TH 177208B
- Authority
- TH
- Thailand
- Prior art keywords
- formula
- temperature
- annealing
- steel plate
- steel sheet
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract 6
- 239000010959 steel Substances 0.000 title claims abstract 6
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 239000011248 coating agent Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 title 1
- 238000000137 annealing Methods 0.000 claims abstract 5
- 239000010960 cold rolled steel Substances 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 229910000760 Hardened steel Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
Abstract
วิธีการผลิต แผ่นเหล็กกล้ารีดเย็น ที่มีความแข็งแรงต้านแรงดึง (สูตร) 1470 MPa และมีอัตรา ยืดรวม TE (สูตร) 19% วิธีการประกอบรวมด้วย ขั้นตอนต่างๆ ของการอบอ่อน ที่อุณหภูมิอบอ่อน AT (สูตร) Ac3 เพื่ออบอ่อน แผ่นเหล็กกล้าไม่ปรับแต่ง ที่องค์ประกอบเคมีของมัน ผสมด้วยธาตุต่อไปนี้ ในปริมาณ % โดยนํ้าหนัก 0.34% (สูตร) C (สูตร) 0.40%, 1.50% (สูตร) Mn (สูตร) 2.30%, 1.50% (สูตร) Si (สูตร) 2.40%, 0% (สูตร) Cr (สูตร) 0.7%, 0% (สูตร) Mo (สูตร) 0.3%, 0.01% (สูตร) Al (สูตร) 0.07%, ที่เหลือเป็น Fe และสารมลทิน ที่ไม่ สามารถหลีกเลี่ยง, ชุบแข็ง แผ่นเหล็กกล้าอบอ่อนด้วยการทำความเย็นมันลงมาถึง อุณหภูมิชุบแข็ง QT < จุดเปลี่ยนเฟส Ms และระหว่าง 150 ํ เซลเซียส และ 250 ํ เซลเซียส, และปรับแต่งตกตะกอน ด้วยการทำความร้อนรอบใหม่ ให้กับแผ่นเหล็กกล้าชุบแข็งจนถึงอุณหภูมิตกตะกอน PT ระหว่าง 350 ํ เซลเซียส และ 420 ํ เซลเซียส และพักรอแผ่นเหล็กกล้า ที่อุณหภูมินี้ ในระหว่าง ช่วงเวลา ตกตะกอน Pt ระหว่าง 15 วินาที และ 250 วินาที: Cold rolled steel sheet production method It has a tensile strength (formula) 1470 MPa and a total elongation rate of TE (formula) 19%. The assembly method includes various steps of annealing at the annealing temperature AT (formula) Ac3 to annealed steel plates without Customize At its chemical composition Mixed with the following elements in% by weight 0.34% (formula) C (formula) 0.40%, 1.50% (formula) Mn (formula) 2.30%, 1.50% (formula) Si (formula) 2.40%, 0%. (Formula) Cr (formula) 0.7%, 0% (formula) Mo (formula) 0.3%, 0.01% (formula) Al (formula) 0.07%, residual is Fe and impurity impurity not be avoided, plate hardening. Annealed steel with cooling it comes down to Hardening temperature QT <Ms phase transition point and between 150 ° C and 250 ° C, and precipitated refinement. With a new round of heating To hardened steel plates to PT sedimentation temperature between 350 ํ C and 420 ํ C and wait for the steel plate. At this temperature during the Pt precipitation period between 15 s and 250 s:
Claims (1)
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TH177208A TH177208A (en) | 2018-06-21 |
| TH177208B true TH177208B (en) | 2018-06-21 |
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