The more the economy is in recession, the higher the call to lower costs. But the products produced must be able to meet the constant. Increased quality requirements and conditions of the product assurance law. For the production practice of resistance welding, it is particularly necessary to reduce the cost of expensive damage inspection. Since it is stipulated that macroscopic grinding discs must be manufactured and observed, this cost can only be reduced by reducing the number of expensive inspections. To reduce the number of inspections by the Quality Assurance Section, it is necessary to ensure that the weld quality meets the requirements. Otherwise, the cost savings achieved by reducing the lossy inspection may be more consumed by user claims and repairs. Therefore, it is necessary to find a method that is economical without affecting the production process to ensure the quality of processing. For this purpose, in addition to a comprehensive adjustment of the welding process, it is also possible to continuously monitor the welding parameters and load the documents without missing. Users are now increasingly dealing with computers. Therefore, this computer should also be given the task of completing quality assurance. Considering that resistance spot welding also has to cope with this "data flow", the significance of the microcomputer in the control technology is increased. The function of the microcomputer is extended to the processing of statistical data of the welding process with the input and operation of the original parameters. The welding process control part with a complete set of adjustment procedures collects the current and voltage of the welded part, calculates the welding resistance, and continuously compares the calculated result with the ideal value of the cooking process to see if it is within the correct value range. In addition, some of the interference values ​​that often occur in actual production are balanced, such as fluctuations in network voltage, changes in impedance in the secondary coil, wear of the electrodes, edge welding, and bypass. For example, the welding current is increased by the control portion, thereby compensating and balancing the wear of the electrodes. In order to be able to fully utilize the adjustment capabilities, there are of course environmental conditions that meet the quality requirements. Therefore, fluctuations in invisible and non-adjustable parameters are not allowed. This means that, for example, the electrode pressure and the cooling water temperature must be kept constant. Under this premise, the optimization of the weld nugget can be achieved by adjusting each solder joint. Designers once thought that not all solder joints are in optimal condition, so there must be a safe reserve relative to the actual load. This situation should be a thing of the past. By controlling and adjusting the welding process, the number of such "fear points" is greatly reduced. This leads to a reduction in processing time and costs. Of course, we cannot expect that this adjustment will bring miracles. For example, when there is no contact between the board and the board due to deformation or the like, the extension of the soldering time and the increase of the welding current will not help. In this case, the red light is illuminated when the adjustment caused by the interference value still does not achieve good soldering. How to handle these feedback values ​​in various situations is different for different application scenarios. For example, the welding can be repeated once more, but the welding point can be changed to a place and then re-welded. It is also conceivable to take this part out for repair. In some places where resistance welding is applied, the boundary conditions are often not stabilized, making the adjustment work ineffective. But even in this case, using parameter monitoring to achieve welding control is not superfluous. Process control can be achieved by continuously monitoring welding parameters. If one or more parameters are out of the predetermined tolerance range due to instability of the boundary conditions, a signal appears indicating that the solder joint is defective. Instruments for monitoring welding parameters come in a variety of configurations. Depending on the application, such as accuracy requirements, special welding parameters, material properties, etc., in most cases, it is sufficient to monitor the welding current or to simultaneously monitor the welding current and welding voltage. For this reason, there is such a welding controller that monitors criticality on the market. It can also reduce equipment costs, because where two instruments are supposed to be used, just one is enough. Whoever wants to take advantage of this modern equipment does not have to eliminate existing machines and controllers. Many older controllers can be retrofitted or replaced with a new generation of controllers. Thereby, on the one hand, the floor space beside the machine can be reduced, and on the other hand, the investment cost can be reduced. When using a quality assurance instrument, equipment purchase and operating costs are often underestimated at the time of cost accounting. Be careful not to be counterproductive. The purpose of the original pursuit is to avoid defects, but because the operation board is complicated, more instructions and data need to be input, which may cause errors. In this regard, in recent years, some achievements have also been made using microcomputers. Using a microcomputer, through the database, you can directly control a variety of welding modes using a microcomputer keyboard. It is often possible to display the parameters on the screen in tabular form. You can extract values ​​from the table at a glance. Since all the welding stations feed back all the data to the microcomputer, the measured values ​​of any solder joints can be extracted at any time before sitting in the microcomputer. This can be expressed not only in digital form, but also in curves, line posts or other graphics. By selecting each point in the menu, the current, voltage, and resistance values ​​for each half wave (ie, one hundredth of a second) can be obtained for any solder joint. This flawless documentation helps reduce damage testing to a minimum. This is because it is possible to perform deeper inspections where the quality of the solder joints is suspected in the data stored in the computer. Figure 5 shows the results of two damage inspection samples. There is a significant deviation between the storage parameters with tear points and the ideal values. It can be considered that by adopting modern control technology, the quality is reduced while the cost is reduced. Its wide range of applications is also similar to its structural form. There are also various levels, from monitoring, conditioning (including and excluding power components) to package control. The instrument is adapted to the user's requirements by adding or replacing the board. The locked keyboard and input area are designed to give the relevant personnel the right to change control, monitoring and adjustment parameters.
NANSHAN
powder actuated fasteners are specifically fabricated to meet the exacting
requirements of toughness and durability that enable them to penetrate dense
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will fit into tools with 8mm barrels.
NANSHAN Drive Pins can be used for the
powder actuated tools and gas actuated tools of
NANSHAN®, POWERS®, RAMSET®,
HILTI®, SIMPSON® and BLUE
POINT FASTENERS®.
Drive Pins,Drive Pins For Faster Tool,Drive Concrete Pin,Drive Pin Fastener Sichuan Nanshan Powder Actuated Fastening System Co., Ltd. , https://www.nanshanpat.com
1 can not reduce the quality
2 Reduce operating costs 
We maintain only the highest standards in the materials, production
techniques and quality control measures used to manufacture our fasteners,
assuring consistent, optimum quality in every fastener.
Introduction to friction stir welding