Cangzhou Xinglong Engineering Instrument Co

Type steel bar corrosion meter wholesale price of steel bar detector
Type steel bar corrosion meter is an important corrosion detection and electrochemical measuring instrument, used in electrode process dynamics, electroanalysis, electrolysis, electroplating, metal It has a wide range of uses in phase analysis, metal corrosion rate measurement and various corrosion and anti-corrosion studies, as well as electrochemical protection parameter testing. It can be used independently or supplemented by recorders, DC oscilloscopes, logarithmic converters, signal generators, etc. to conduct a variety of dynamic and static, transient and steady-state experimental measurements. It is suitable for factories, enterprises, scientific research institutes and colleges and universities. The school is engaged in industrial testing, failure analysis, scientific research, teaching experiments, new product development and various measurement purposes.
1. Technical parameters of the new steel corrosion measuring instrument:
, Constant potential control range: ~+.(Continuously adjustable)
, Constant potential control accuracy: Better than (generally. Grid voltage The change in % change of the research electrode control potential is less than
, output current measurement range: ~, ~, ~ (digital current display)
, output tank voltage: ~
, constant current control range: ~( Continuously adjustable, the given current is divided into three ranges, namely,,)
, output potential measurement range: ~+., potential measurement accuracy % plus or minus the last digit, current measurement accuracy.% plus or minus the last digit characters, input impedance:
, response speed:
, polarization direction: anodization, cathodization
, external given potential: the potential can be given by an external control signal, power supply: AC %, power Consumption
, overall dimensions:
2. New steel bar corrosion measuring instrument In the use of steel bar corrosion measuring instrument,
Preparing steel bar electrodes is an important link. Processing grade building steel bars into diameters, For a test piece with a length and smoothness of △ [provided by the manufacturer], wipe off the grease with gasoline, ethanol, and propanol in sequence, and weld a long ~ wire on one end, then carefully wipe off the welding oil with ethanol, and dip-coat both ends of the steel bar. Melt paraffin wax and rosin for insulation, so that the exposed length of the middle of the steel bar is When the method cannot determine whether the concrete admixture is qualified, the hardened mortar method can be used for further determination. For the sample test preparation methods of the fresh mortar method and the hardened mortar method, please refer to the national standard for details. Please refer to page of the instruction manual. Take the fresh mortar method as an example. Let’s take a look at the detailed operation of the steel bar corrosion measuring instrument:
. Pour the mixed mortar into the plastic test mold, first pour the left and right thickness, place the prepared steel bar electrode parallel to the surface of the mortar, and pull it out. Wire, then fill it with mortar and smooth it, tap the side of the test mold a few times to make it dense.
. Connect the test instrument [type steel bar corrosion measuring instrument] according to the instrument instructions, connect the power cord [], electrode input line . Turn on the power switch, press the reference key and constant current key, turn the on-off switch to the off end, and select the range. At this time, the current display window should be zero, which can be adjusted to zero through the zero-adjusting potentiometer. Turn the on-off switch to the on position, short-circuit the two wires of the electrode input line and the red line, adjust the coarse adjustment and fine adjustment of the power supply, and make the current display value... Turn the on-off switch to the off position, use a steel bar as a The anode is connected to the double line of the electrode input line, and the other steel bar is the cathode and the red line of the electrode input line is connected. Then align the lower end of the calomel electrode with the center position of the steel anode, contact the surface of the fresh mortar, and Vertically connected to the mortar surface and connected to the blue line of the electrode input line.
. Operation of the detection process: Before passing the given current, read the natural potential of the anode steel bar {the indication value of the first display window} .Turn on the given current, that is, turn the on-off switch to the on position, and record the indication value of the first display window in minutes. Processing of test results.
When using the steel bar corrosion measuring instrument, the following points should be noted: The power supply should be ~% frequency. After the instrument is powered on, it should be warmed up for several minutes. During the test, the alligator clips of the research electrode, auxiliary electrode, and reference electrode must not touch or short-circuit each other. The rubber sleeve at the end of the calomel electrode should be removed perpendicular to the research electrode {i.e., the steel anode}, as close as possible to the research electrode, but not touching it. Avoid interference from strong magnetic fields during work. If there is no output from the power supply, check whether the fuse on the rear panel of the instrument is blown. The instrument should be kept dry and clean, and the air should not contain corrosive substances.