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SKF imported bearings on the combine harvester
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(2) Vulnerable parts; especially the pin, tablet, sleeve and horn can not be replaced by more butter instead of replacement and repair; if the wear-to-limit parts are used for a long time, other mechanical life will be formed. Shorten.
(3) The shaft type repair without balance machine needs to be balanced when repairing various shaft types; one thrust bearing can be installed at one end of the shaft; it can be clamped on the three claws of the lathe; the other end can be used for topping.弥 芗 芗 芗 硪 SK SK SK SK SK SK ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
(4) Due to the complicated type of SKF imported bearings in the repair; it is difficult to set up; can be used for scrap shaft processing. At present, most of our shafts are mainly made of 45# carbon steel; if quenching and quenching is required; Under; can use oxygen, earth furnace to heat the required parts into the red hair and place it in the salt water; as needed.
(5) When processing the sleeve parts, it is not easy to pull the oil groove in the sleeve hole as much as possible. It is not easy to add oil to some parts of the harvester; the local butter and heavy oil that are difficult to refuel; the nylon sleeve is on the outside. Where the nylon sleeve is used; Do not replace the rod with cast iron, copper or aluminum; because the nylon sleeve accepts a certain impact without deformation.
(6) The key and keyway correction on the pulley and shaft should ensure that the scale is not early; the size of the key cannot be increased; otherwise, the strength of the shaft will be affected; the keyway on the shaft can be repaired by welding filler in the opposite direction of the old key. Milling a keyway; the keyway on the pulley can be used as a method of inserting (transition cooperation); after inserting; using a static screw to tap the key in the sleeve.
(7) Some repairs of the hydraulics of the harvester remove the distributor and the reducing valve; use the air pump to pressurize the pressure of each pipe; the hydraulic oil should be filtered and exhausted when it is installed twice; the repair of the hydraulic installation is mainly the seal; The seal is the best to be replaced and replaced.
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Sodium Methoxide Physicochemical Properties
Density 0.97 g/mL at 20 °C
Boiling point 65 °C
Melting point -98 °C
Molecular formula CH3NaO
Molecular weight 54.024
Flash point 11 °C
Exact quality 54.008160
PSA 23.06000
LogP 0.04670
Appearance traits transparent liquid
Vapor density 1.1 (vs air)
Steam pressure 50 mm Hg ( 20 °C)
Refractive index 1.3700
Storage Conditions
1. Storage: sealed and stored in a cool, dry and dark place
2. Sealed in iron drums, 200kg per barrel, stored in
Cool, ventilated, dry place, fireproof, heatproof, prevent
show. Store and transport according to flammable chemicals.
sodium methoxide Application
1. Mainly used as raw materials for medicines and pesticides, also used in dyes and chemical fiber industries.
2. It is used as a condensing agent in organic synthesis, as a catalyst in the treatment of edible oils and fats, and as an important raw material for the synthesis of drugs such as sulfamididine, sulfamethoxazole and sulfonamide synergist.
3. Used as an alkaline condensing agent and catalyst in organic synthesis, used in the synthesis of perfumes, dyes, etc., and is a raw material for vitamins B1, A and sulfadiazine.
4. Used as a condensing agent for organic synthesis
5. Fat transesterification catalyst. To change the fat structure, make it suitable for margarine and so on. Must be removed in the final food.
6, mainly used as a condensing agent, strong alkaline catalyst and methoxylation agent, used to prepare vitamin B1 and A, sulfadiazine and other drugs, a small amount for pesticide production. It is also used as a catalyst for the treatment of edible fats and edible oils, especially lard. Also used as an analytical reagent.
7, mainly used in the production of vitamin A1 vitamin B1 long-acting sulfonamide, sulfadiazine, trimethoprim and other pharmaceutical industries, can also be used in the biodiesel industry. It can also be used as an edible catalyst and analytical reagent.
8, mainly used as a condensing agent; strong alkaline catalyst and methoxylation agent, used to prepare vitamins B1 and A; sulfadiazine and other drugs, a small amount for pesticide production. It is also used as a catalyst for the treatment of edible fats and edible oils, especially lard. Also used as an analytical reagent.
Sodium Methoxide CAS No.124-41-4
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