A Comprehensive Analysis of the Duma Machinery Casting Jaw Plate Production Process
2025-04-25
As a professional E-board manufacturer, Duma Machinery is Casting the jaw plate The field boasts a mature technological system. Below is a detailed process flow for jaw plates, covering key stages such as melting and heat treatment, ensuring the production of high-wear-resistant, high-strength, premium-quality cast jaw plates.
I. Metal Melting Process
Melt using a 3- to 8-ton acidic medium-frequency induction furnace, ensuring Casting the jaw plate The material's uniformity and high toughness, with the following specific steps:
1. Preprocessing stage: Load the cleaned scrap steel and pig iron as base materials, and add alloys such as ferrochrome, ferrotungsten, and ferronickel to optimize the molten steel composition.
2. Alloying Treatment: Add manganese ferroalloy and silicon ferroalloy 5 to 10 minutes before tapping the steel, enhancing material performance.
3. Deoxidization Treatment: Add 0.05% high-purity aluminum for deoxidization 2 minutes before tapping the steel, helping to reduce oxide inclusions.
4. Temperature Control: The molten iron's tapping temperature is strictly maintained between 1460°C and 1500°C to ensure optimal fluidity.
5. Modification Treatment: Rare-earth composite modifiers are added into the ladle to refine grain structure and enhance performance. Casting the jaw plate Its wear resistance.
6. Slag Stabilization and Removal: Add a slag-protecting保温 agent to cover the molten steel, let it sit for 5 minutes, then remove the slag to minimize impurities.
7. Pouring Control: Maintain the pouring temperature steadily between 1360°C and 1400°C to ensure the quality of the castings.
II. Heat Treatment Process
After casting and cleaning, the parts enter the heat treatment stage for further enhancement. Casting the jaw plate Hardness and toughness:
● Equipment: Trolley-type Resistance Furnace
● Process: Normalizing (air cooling) + Tempering (air cooling), a dual treatment
● Performance metrics:
○ Hardness: HRC60.5
○ Impact Toughness: 8.1 J/cm² (10×10×55 mm Notched Specimen)
As a professional jaw plate manufacturer, Duma Machinery ensures every single piece through its rigorous jaw plate production process. Casting the jaw plate All of them boast exceptional wear resistance and impact strength, meeting the stringent demands of industries such as mining and building materials.
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Duma Machinery's main products include: mantle and concave liners, crushing walls, and distribution plates for cone crushers; jaw plates, side guards, and pressure bars for jaw crushers; lining plates for ball mills, autogenous mills, and other equipment; impact crusher hammers and impact plates; as well as hammer heads, screen bars, liner blocks, and other wear-resistant alloy steel components for metal shredders.