Specifikacije zmogljivosti za ulitke kmetijskih strojev?

Odlitki kmetijskih strojev so kovinski oblikovani predmeti, pridobljeni z različnimi metodami litja, to je, da se staljena tekoča kovina vbrizga v vnaprej pripravljen kalup z vlivanjem, brizganjem, sesanjem ali drugimi metodami litja. Izdelek se nato zgodaj ohladi in polira z naknadnimi metodami obdelave, da se pridobijo predmeti določene oblike, velikosti in zmogljivosti. Spodaj se pogovorimo o njegovi uspešnosti.

The application history of agricultural machinery castings is long. The ancients used castings to make and some household utensils. In modern times, castings are mainly used as blanks for machine parts, and some fine castings can also be directly used as machine parts. Actually, everyone should understand that castings account for a large proportion in mechanical products. For example, in tractors, the weight of castings accounts for approximately 50-70% of the total weight, agricultural machinery accounts for 40-70%, and machine tools, internal combustion engines, etc. account for up to 70%. About 90%. Among various types of castings, mechanical castings have a wide variety of complex shapes and large amounts, accounting for approximately 60% of the total production of castings. Secondly, there are ingot molds for metallurgy, pipelines for engineering, and some tools in daily life. In terms of performance, agricultural machinery castings are actually theoretical metal liquid forming of castings, often referred to as castings, with a long history of forming technology. As early as over 5000 years ago, our ancestors were able to cast copper and bronze products. Ordinary casting is a widely used metal liquid forming process. Agricultural machinery castings are a method of pouring liquid metal into the mold cavity, cooling and solidifying to obtain a certain shape of blank or part.

Prednost ulitkov za kmetijske stroje je, da lahko izdelajo surovce s kompleksnimi votlinami in oblikami. Kot so različne škatle, ohišja postelj, ohišja cilindrov, glave cilindrov itd. Še posebej njegova fleksibilnost postopka in široka prilagodljivost. Velikost delov, oblikovanih s tekočino, je skoraj neomejena, z težo od nekaj gramov do stotin ton in debelino stene od 0,5 mm do 1 m. V industriji se lahko za tekoče preoblikovanje uporabi vsak kovinski material, ki ga je mogoče preliti v tekoče stanje. Za lito železo s slabo plastičnostjo je tekoče oblikovanje metoda izdelave surovcev ali delov. Poleg tega je pomembno omeniti tudi, da so stroški tekoče oblikovanih delov razmeroma nizki. Tekoče oblikovanje lahko neposredno uporabi odpadne dele in sekance z nizkimi stroški opreme. Hkrati je dodatek za obdelavo ulitkov kmetijskih strojev majhen, kar prihrani kovino. Vendar pa so nekateri kovinski postopki zapleteni in jih je težko natančno nadzorovati, kar povzroča nestabilno kakovost ulivanja. V primerjavi z odkovki iz istega materiala so ulitki kmetijskih strojev nagnjeni k napakam, kot so krčenje, poroznost in poroznost zaradi njihove ohlapne tekoče strukture in velikosti grobih zrn. Njegova mehanska zmogljivost je relativno nizka.

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