Cnc Machining refers to Machining of metals with CNC Machining tools and tools.CNC index-controlled machine tool is programmed by CNC machining language, usually G code.CNC machining G code language tells CNC machine tool machining tool to use what cartesian position coordinates, and control the feed speed of the tool and spindle speed, as well as tool converter, coolant and other functions.CNC machining has great advantages over manual machining, such as CNC machining parts are very accurate and repeatable;CNC machining can produce parts with complex shapes that manual machining cannot complete.
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What is the recovery rate?
1. The recovery rate is the degree of loss of the reaction sample during the analysis of the sample. The less the loss, the higher the recovery rate. If the standard solution is 1 PPM, it is 1 mg/L, and the standard data is 0.99 mg/L. That is to say, your recovery rate is 99%, which is closely related to the real ingredients, indicating the accuracy of the method.
2. Abbreviation for mineral recovery rate .
Refers to the mass of a useful ingredient in a mineral processing product (generally a concentrate) as a percentage of the mass of the same useful ingredient in the selected ore:
ε=γ×β / α× 100%
Where: ε is the recovery (%) of a component in the product; α is the grade (%) of the component in the ore; β is the grade (%) of the component in the product; γ is the yield of the product ( %).
Recovery rate is an important technical and economic indicator in mineral processing. Generally, under the premise of ensuring the quality requirements of concentrates, the higher the recovery rate of a useful component in the concentrate, the more complete the recovery of such valuable components.
The yield is measured during the beneficiation process (actually difficult), and the theoretical recovery is often used instead of the actual recovery.
Theoretical recovery: ε rational = β(α-θ) / α(β-θ) × 100%
Where: α, β is the same as above; θ is the grade (%) of such a component in the tailings; the former considers the loss of useful components in the beneficiation process; the latter does not consider the loss, so the actual recovery rate is lower than the theoretical recovery rate. [1]
3. The purpose is to take the mineral ore contained in a metal, selected from the maximum to a higher grade concentrate. The completeness of this selection process can be assessed by metal recovery. The so-called metal recovery rate is the ratio of the weight of the metal contained in the concentrate to the weight of the metal in the ore, and is usually expressed as a percentage.