PDV is a high purity, fine cubic-crystal salt, especially manufactured to remove all the
residual chemicals and impurities found in salt.
1.
Pdv Salt, Sodium Chloride content ≥ 99.5%,
White.
2.
English name:sodium chloride
3.
Molecular formula:NaCl
4.
Package: 25kg / bag
or 1000kg/jumbo bag
5.
CAS:7647-14-5
6.
Delivery time:30 days
Specifications:
Items
Sodium Chloride
Moisture
Water Insolubles
Pb
As
Hg
Cd
Whiteness
Size
Unit
%
%
%
mg/kg
mg/kg
mg/kg
mg/kg
mm
Standard
≥99.10
≤0.30
≤0.05
≤1.00
≤0.50
0
0
82
0.15-0.95
Results
99.58
0.12
0.00
0.00
0.00
0.00
0.00
89
Pass
pass
Pass
Pass
Pass
Pass
Pass
Pass
Applications :
Food & Drink
PDV,
Granular and Tablet salt all play their part in the food manufacturing
processes either as a food ingredient or as a water softening salt used on the
plant.
Textiles & Dyes
Salt(Sodium
Chloride) is added when dying cotton and viscose textiles to assist in fixing
the dye. In dye manufacture, salt can be used to bring the dye out of solution
at the end of the manufacturing process, a technique known as 'salting out'.
Salt can also be used in the 'standardisation' of dye mixes, to ensure
uniformity of dye strengths between different batches. Finally, salt is
sometimes used as a grinding agent to reduce the dye compounds to a powder.
Personal Care & Health
Pdv Salt,Food Grade Pdv Salt,Pdv Refined Salt,Iodized Pdv Salt Weifang Xinchang Chemical Co.,Ltd , http://www.xinchangchem.com
The test cutting method is used to check the working accuracy of the machine tool, which requires high test conditions for the accuracy test of the test piece, and the test cycle is long. Because most cutting motions are performed along the XY plane, the precision of the laser processing XZ and YZ planes is not evaluated. Machine can not evaluate all the performance of traditional CNC machine tools! The latest international wire cutting machine tool inspection standards recommend replacing the NAS 979 test method with the ball bar test method to perform a rapid and effective inspection of the machine tool's working accuracy. The difference between the virtual axis CNC machine tool and the traditional CNC machine tool is that the machining error is the respective expansion Due to the complex nonlinear mapping of rod length errors and center-of-hinge position errors, appropriate work-accuracy test measures need to be developed. In spite of the laser machining in the inspection of the accuracy of the traditional numerical control machine tools, the laser engraving machine ball bar inspection method replaces the trial cutting method. However, due to the error diagnosis software provided by the ball bar instrument, the line cutting machine can not be directly used for virtual axes. The inspection accuracy of the machine tool makes the test cutting method the preferred method here!
Because of the non-linear mapping relation between tool pose error and telescopic rod length error of virtual axis CNC machine tools, the accuracy of small-sized test specimens can not accurately reflect the working accuracy of large-size working space, so it is necessary to select specimens with the same size as the working space of the machine tool. Cutting to evaluate its accuracy! Wire cutting machine fixed laser engraving machine attitude accuracy test virtual axis CNC machine tool to do the attitude movement, the description of the position of the laser processing platform variable only three position variables with the tool path changes, while the attitude is always the same! Virtual Axis CNC machine tool in the working space of 300mm × 300mm when the attitude accuracy of the test measures. Variable attitude inspection accuracy test Virtual axis When the NC machine tool changes attitude, the attitude of the moving platform continuously changes with the tool path. This changes the working space of the machine tool greatly compared with the fixed attitude, and the greater the change in the attitude angle, the greater the laser machining machine can be. The smaller the working space! The ensuing question is: How to determine the size and inspection method of the laser engraving machine for cutting the workpiece when using the test cutting method to verify the accuracy of the machine's attitude change operation, JB/T 17421.2-2000 "General Rules for Machine Tool Inspection - Numerical Control Axis The determination of positioning accuracy and repeatability accuracy" abnormally negotiated the negotiation points between suppliers/manufacturers and users on the accuracy testing of traditional CNC machine tools.
The engraving machine ball bar can quickly (10-15min), convenient and economical evaluation and diagnosis of CNC machine tool dynamic accuracy, servo control interpolation accuracy, backlash, and other indicators, suitable for a variety of vertical and horizontal machining centers And CNC lathes and other machine tools, with simple operation, easy to carry! The working principle is that the two ends of the ball bar are respectively installed on the spindle and the workbench of the machine tool (or on the spindle and turret of the lathe), and the circular trajectory formed by the two axis interpolation motion is measured, and this The trajectory is compared with a standard circular trajectory to evaluate the type and magnitude of the error generated by the machine tool.
Salt (Sodium Chloride) is a well known flavour, preservative and a
texturiser.
Chemicals & Manufacturing Used in many manufacturing processes and as a raw
material in the chemical industry
Teach you to understand the engraving machine
The engraving machine ball bar instrument is a tool for the rapid detection of two-axis linkage accuracy of CNC machine tools and machine tool failure analysis. Ball bar testing is a test item that must be done before delivery of the engraving machine. The ballbar consists of a high-precision displacement sensor mounted inside a retractable fiber rod. The sensor consists of two coils and a movable inner rod. Its working principle is similar to that of a displacement sensor using LVDT technology. When its length changes, the inner rod moves into the coil and the inductance changes. The detection circuit converts the inductance signal into a displacement signal with a resolution of 0.1 μm and passes it through the interface to the PC. Its accuracy is detected by the laser interferometer up to ±0.5 μm ( At 20°C).