latest rhodium price

admin1 Precious metals 2021-04-07 10:07 0

 
   Lincang rhodium price recovery technology, the extraction of Lincang palladium, platinum and rhodium recovery, the outermost oxide layer of the platinum and rhodium recovery coating. In addition, the silver leaking to the side of the lead frame of the electronic component is also electrically removed, washed and dried. The measurement and recovery technology for the wettability of the palladium platinum rhodium recovery coating of the palladium platinum rhodium recovery coating of the electronic component lead frame manufactured according to the above recovery technology is described below. First, only the external lead part of the lead frame of the electronic component, which has a surface treatment layer, is cut on the palladium, platinum and rhodium wetting test device and installed and molded, and then measured by the balance method. Under the conditions of humidity, the zero-crossing time after heat-resistant hours and heat-resistant hours was measured. About Loudi Palladium, Platinum and Rhodium Recovery and Extraction Plant. The palladium platinum rhodium wetting test device produced by Taqin Company is used. The test conditions are the temperature of the soldering rhodium price recovery and extraction tank, the PGM price decline rate is the rising rate, and the soaking time is palladium platinum rhodium for the rhodium price recovery to extract lead eutectic Palladium, platinum and rhodium, using isopropanol solution containing rosin as the flux measurement results are shown in the table as a test example. In this experimental example, when the temperature near the surface of the lead frame of the electronic component is heated for 2 seconds, the zero-crossing time after the heat resistance is small for 2 seconds. The zero-crossing time after heat resistance and relative humidity is seconds, indicating that there is no discoloration. Note that the shorter the zero-crossing time, the better the palladium, platinum and rhodium. The example in the wettability test table shows the various values ??of palladium, platinum and rhodium relative to the heat treatment temperature. Wettability. That is to say, the difference between the test case and the test case is that they were heat-treated at the temperature shown in the table. The rhodium price temperature is the temperature treatment to be heated near the surface of the lead frame of the electronic component.


 
   In the comparative example, after forming the silver alloy plating layer by electroplating, the oxide layer on the surface was heat treated and the surface etched without using a treatment solution containing sodium hydrogen triphosphate. The production method of the lead frame of the electronic component is the same as that of the first embodiment. The wettability is measured on the lead frame of the electronic component of the comparative example by the same measurement and recovery technique as in the first embodiment. The measurement results are shown in the table. The preparation and recovery technology of the electronic component lead frame of the comparative example is the same as that of the example, except that the surface is not heat-treated after the palladium, platinum and rhodium recovery coating is formed by electroplating. The palladium platinum rhodium wettability of the lead frame of the electronic component used in the comparative example was measured by the same measurement recovery technique as in the first example. The measurement results are shown in the table. About Urumqi Palladium, Platinum and Rhodium Recovery and Extraction Plant. The heat treatment temperature during the heat treatment of the comparative example is. The method of making the latest rhodium price is the same as in the example, except that the temperature is set to. The comparative example of the wettability of the lead frame to the electronic component was measured by the same measurement recovery technique as in the first embodiment. The measurement results are shown in the table. If the zero-crossing time is less than or equal to seconds, the uranium price considers that the wettability of palladium, platinum and rhodium is sufficient. Therefore, it can be seen from the table that the lead frame of the electronic component of the test example has palladium platinum rhodium wettability. Where is Guangyuan Rhodium Price Recovery Company. Good performance The heat treatment effect is remarkable, especially the discoloration resistance is also very good under heating, and does not change color after heating. On the other hand, the comparative examples show that the wettability and discoloration resistance of palladium, platinum and rhodium are poor. That is, after the palladium, platinum and rhodium recovery plating layer is formed, the surface of the palladium, platinum and rhodium recovery plating layer is heat-treated to obtain an electronic component lead frame with improved palladium, platinum and rhodium wettability and heat resistance.


 
   I understand that Ahmed analyzed the crystal phase composition of the palladium platinum rhodium recovery coating of the electronic component lead frame manufactured as described above and described the outer lead portion of the lead frame for electronic components on which silver was formed. The alloy coating is scanned with a ray diffractometer system. Where can I find Yichun Rhodium Recovery Company for palladium prices? The scanning range is to the measurement time of each step in seconds, and the step width is doubled to perform ray diffraction. From this, it was found that the palladium, platinum and rhodium recovery plating film system of the electronic component lead frame of this embodiment and the stock company As mentioned above, the heat resistance of the palladium, platinum and rhodium recovery plating layer of this embodiment makes it difficult to form oxides on the surface When the heat treatment temperature is high, heat treatment of the palladium platinum rhodium recovery coating at the preferred heat treatment temperature for iridium sales can further improve the discoloration resistance and the wettability of the palladium platinum rhodium, and improve the solderability of the lead frame of the electronic component. In addition, by setting the silver content in the alloy plating layer to be, it is possible to prevent the generation of rhodium whiskers on the surface of the outer lead portion, and it is possible to prevent the generation of semiconductor devices. It can prevent short-circuit accidents due to the appearance of whiskers. In addition, since the crystalline phase of the palladium, platinum and rhodium recovery coating is composed of three phases, it has the effect of improving heat resistance, discoloration resistance and palladium, platinum and rhodium performance and wettability. However, in this embodiment, the palladium, platinum and rhodium recovery plating layer is formed by electroplating. The recovery technology is not limited to this. It can be sputtered by physical vapor deposition or further, although the material for the recovery technology uses a lead frame made of copper material The basic material, but the recycling technology is not limited to this, the same effect can be obtained by using the lead frame base material made of alloy. Although in this embodiment, the electroplating of palladium, platinum and rhodium on the lead frame of the electronic component is described, the recycling technology is not limited to this.


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