In the grinding grading process, according to the different functions of the grading operation, it can be divided into three types: pre-grading, inspection grading and control grading.
Before the material is fed into the grinding machine, the classification operation of dividing the qualified fine particles in the raw ore is referred to as pre-grading operation. When the qualified fraction of the ore in the ore mine exceeds 15%, it is advantageous to use the pre-classification operation to avoid the excessive pulverization of this part of the material entering the grinding machine.
The classification operation of separating the coarse fraction (unqualified portion) in the ore discharge of the mill and returning it to the mill for regrind is called inspection and classification. It can control the particle size of the grinding products and meet the particle size requirements of the sorting operation. Sometimes pre-selected grading and inspection grading are combined.
The operation of classifying the overflow of a certain classification operation (generally inspection classification) is called control classification. The purpose is to obtain a finer product. In the selection process, the control grading operation can only be adopted when the final product granularity requirement is very fine.

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This classification mainly includes the aluminum or zinc alloy die casting parts using in Milling Machines area.In the die casting process,higher specific pressure is required, so that higher filling speed can be obtained.which is beneficial for alloy to overcome mold filling resistance.and effectively fill each part of the cavity.The Casting General Tolerance is Grade GB-CT4.
Process Technology: High pressure die casting, Cold Chamber
Product Dimensions: Customized
Casting General Tolerance: Grade GB-CT4
Flow Processes: Die casting, Degating to remove the residual of the gate, Polishing and Deburring to remove the burrs, Polishing to remove the parting line, flash,CNC Turning, Cleaning, Packaging, Storaging, Shipping
Control Measure: Incoming Material Test, First Article inspection, Routing inspection, Final item inspection, and Outgoing quality control
Inspection Equipment: CMM, Caliper, Plug Gage, Screw Gauge
Application: Machinery Parts
Certificate: IATF16949:2016,ISO14001:2015,ISO45001:2018
Lead Time: 30-35 days
Trade Term: FOB Ningbo

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