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Resistant alloy casting balls

Resistant alloy casting balls:

There are two forms: First, chromium as a main alloying element chromium alloy white cast iron short iron, chromium alloy cast iron casting material called chromium alloy cast iron ball ball; the second is to ductile iron material cast ductile iron grinding balls called, by which the matrix structure obtained by heat treatment is mainly bainite ductile iron ball ball ball short bainite; obtained by heat treatment of the matrix organization is mainly ductile martensite cast iron ball ball ball called martensite.


Scope Editor
Wear-resistant cast segments are widely used in metallurgy, mining, cement, power generation, flue gas desulfurization, magnetic materials, chemicals, coal slurry, pellets, slag, superfine powder, fly ash, calcium carbonate, quartz sand, etc. mill. 2, product specifications:
Ball specifications ¢ 8 mm ~ ¢ 130 mm; steel segment specifications ¢ 8 × 10 mm 45 mm ~ ¢ 40 ×.
Quality Standard: edit
Product chromium content (Cr0.5% ~ 30%), hardness (HRC40 ~ 68), impact value, broken rate, wear and other quality standards according to the actual working conditions or conditions of use tailor-made contract.


Inspection Rule Editor
1. Casting ball inspected by the supplier's quality inspection department.
2. Chemical composition inspection by batches. When using an electric furnace smelting furnace as each batch; when the cupola melting every 2h as a group. Take a sample of each batch of chemical composition testing. If the result is unqualified, we will have to redouble our sampling reinspection, which still has a sample is unqualified, the batch of balls to be ineligible.
3. The ball diameter and hardness tests according to test batches. In the melting process the same brand stable conditions, a plurality of furnace and casting furnace through the same process multiple times heat treatment (heat treatment if needed) after a certain number or a certain quality of the public in the same nominal diameter as the number of balls, each batch randomly selected three balls to test, if a ball fail, then then randomly selected the same number of balls re-inspection, sampling twice failed balls quantities greater than or equal to 2, the batch ball ineligible. If the hardness of the ball failed to allow repeated heat treatment.