درجات الفولاذ المتاحة
| الدرجة |
الاسم الشائع |
الخصائص الرئيسية |
التطبيقات النموذجية |
| 1018 |
الفولاذ الطري / منخفض الكربون |
قابلية لحام وتشكيل ممتازة. تكلفة منخفضة. غير قابل للمعالجة الحرارية للصلابة العالية. |
ألواح التثبيت، الحوامل، المسامير، التجهيزات، الأجزاء الهيكلية العامة. |
| 1045 |
فولاذ متوسط الكربون |
قوة أعلى من 1018. يمكن معالجته حراريًا لصلابة متوسطة. قابلية تشغيل جيدة. |
البراغي، المسامير الملولبة، أعمدة الهيدروليك، التروس. |
| 4140 |
Chromoly Steel |
Excellent toughness, impact resistance, and fatigue strength. widely used in high-stress parts. |
Axles, crankshafts, gears, milling machine spindles. |
| 4340 |
Ni-Cr-Mo Alloy Steel |
Superior strength and toughness, even in thick sections. Retains strength at high heat. |
Aerospace landing gear, heavy-duty truck parts, power transmission gears. |
| 12L14 |
Free Machining Steel |
Contains lead/sulfur for extremely fast machining speeds. Low strength, not weldable. |
Bushings, inserts, couplers, high-volume screw machine parts. |
| A2 / D2 |
فولاذ الأدوات |
Extremely hard and wear-resistant. Used for cutting tools and dies. |
Punch dies, mold inserts, cutting blades, gauges. |
Steel Machining Capabilities
| القدرة |
الوصف الفني |
ميزة Jucheng |
| الخراطة للخدمة الشاقة |
High-torque CNC turning for machining tough alloy steels into shafts, axles, and cylindrical housings. |
Capable of handling large diameter billets with rapid material removal rates for cost efficiency. |
| Hard Part Machining |
Machining steel after heat treatment (up to ~60 HRC) using PCBN or specialized carbide tools. |
Allows for final sizing after distortion from heat treatment, ensuring high precision. |
| التجليخ الدقيق |
Surface and cylindrical grinding to achieve tight tolerances (+/- 0.005mm) and superior surface finishes. |
Essential for bearing surfaces and mating parts in automotive and machinery applications. |
| التفريغ الكهربائي والقطع بالأسلاك |
Using electrical discharge to cut hardened tool steels for mold making and complex internal features. |
Enables the creation of sharp corners and deep cavities that traditional milling cannot access. |
Fabrication Guidelines for Steel
Heat Treatment Strategy:
Steel is often machined in an annealed (soft) state, then heat-treated for hardness, and finally ground or hard-turned to finish size. This workflow balances machining speed with part durability.
التحكم في الرقائق:
Low carbon steels (like 1018) can be “gummy” and produce long, stringy chips. We use chip-breaking tool geometries and high-pressure coolant to break chips into manageable sizes, preventing bird-nesting.
Surface Protection:
Unlike Aluminum or Stainless, standard steel rusts easily. Parts must be oiled immediately after machining or plated (Zinc, Nickel, Black Oxide) to prevent corrosion during shipping and storage.
Tool Coatings:
We utilize TiCN or AlTiN coated tools to withstand the high heat generated when machining alloy steels, allowing for faster speeds and longer tool life.
الصناعات التطبيقية الرئيسية
Automotive (IATF 16949 Certified)
الأجزاء الرئيسية: Transmission gears, crankshafts, axle shafts, engine brackets.
Why Steel: Alloy steels (like 4140/4340) provide the immense fatigue strength and toughness needed for drivetrain components.
الآلات الصناعية
الأجزاء الرئيسية: Hydraulic cylinders, machine base plates, heavy-duty fasteners.
Why Steel: 1018 and 1045 steels offer a cost-effective solution for structural parts requiring high rigidity.
Robotics & Automation
الأجزاء الرئيسية: Motor mounts, precision guide rails, structural arms.
Why Steel: Provides the mass and stiffness required to dampen vibrations in high-speed robotic systems.
النفط والغاز
الأجزاء الرئيسية: Drill bit bodies, valves, high-pressure fittings.
Why Steel: High-strength alloys withstand the extreme pressures and abrasive environments of downhole drilling.