How to make the electrolyte alkaline batteries? What are components, what should be the charging current, how long to charge? Electrolyte — aqueous solution of potassium hydroxide with a density of 1,19 — 1,21 g/cm3 with the addition of 20±1 g/l of lithium hydroxide monohydrate (Li0Н.H20). (This corresponds to GOST 9285-59. At -20±1°C or -40±1°C batteries should work for an aqueous solution of potassium hydroxide with a density of 1.26 — 1.28 g/cm3 without addition of lithium hydroxide.)THE ELECTROLYTE FOR THE BATTERY
How to make the electrolyte alkaline batteries? What are components, what should be the charging current, how long to charge? Electrolyte — aqueous solution of potassium hydroxide with a density of 1,19 — 1,21 g/cm3 with the addition of 20±1 g/l of lithium hydroxide monohydrate (Li0Н.H20). (This corresponds to GOST 9285-59. At -20±1°C or -40±1°C batteries should work for an aqueous solution of potassium hydroxide with a density of 1.26 — 1.28 g/cm3 without addition of lithium hydroxide.)
When faced with the need to drill numerous fine holes in printed circuit boards for electronic devices, it was found that a power drill in this case is not such a good assistant she is loud, and the power of it excessive. Then decided to make a small tabletop drill press is more suitable for such work. The present machine has a small size, low power consumption and, importantly, virtually silent — you can work even when all the household slept. And drilling the holes with diameter from 1 to 6 mm permissible even in aluminum workpieces.
Many of us have been fascinated by the exploits of Ivanhoe, Lancelot, read about the struggle and death of evpatii Kolovrat, admired the stories of John. P. P. Tolkien. These interests were awakened the interest in the distant past, gathered like-minded people and dreamers in the clubs history and reconstruction.
The compressor is one of the machines, which are frequently encountered in various production areas. Among the vulnerable sites that require durability and long remained a piston ring. It wear led to the deterioration of integrity, performance and efficiency of the unit.
Remember PushPull fabulous animal which could jump not only forward but also backward, because instead of a tail he had a second head? About it can not help reminiscent of the original bilateral cutter, manufactured by the innovators of the Gorky machine-tool production Association. Tool on a conventional tool holder has two cutting inserts mounted on carbide lining and is mounted to the top clamps. Under the clamps located struzhkolomy.
From circular knives, no matter where they worked in agricultural units, in the fields or in industrial plants, — wear out really fast sharp working edge. Therefore, innovators tend to find the most effective method of restoring the load of the tool.
Can we call today an industry where not carried to its good welding is a fast and reliable method of joining parts from different metals and alloys. Not accidentally, the interests of many young innovators are concentrated “around the electrode.” The army’s innovators N. Khvorostiv M. Bokov, S. Privateer built the unusual torch for arc welding in shielding gases. It is intended for the qualitative connection performance parts, made of steels and aluminum alloys.
Existing disk device for mechanized spreading of fertilizers do not always provide the uniformity and range of distribution of fertilizers on the field.
…drill press, which I use for several years and are quite happy. Make it can anyone who loves tinkering. The design shown in Fig. The drill is fixedly mounted in the upper part of the Jack by two clamps of flat steel. Gasket between her and Jack is a wooden block. The table is made of steel profiles, U-shape, it fit in with the moving end of the Jack bolt M8. To make the machine more stable, its abutment provorachivayut to any lasting basis.