Ho qapa Tlhaloso Le Khopolo

2021-10-30 00:00:00

1. Tlhaloso ea ho forging e batang

Cold forging, eo hape e tsejoang e le ho forging volume e batang, ke mokhoa oa ho etsa thepa hammoho le mokhoa oa ho lokisa. Ha e le hantle e ts'oanang le ts'ebetso ea setempe, mokhoa o batang oa ho forging o entsoe ka thepa, hlobo le lisebelisoa. Empa thepa ea ho sebetsa ka setempe ke haholo-holo poleiti, 'me thepa e sebelisoang ka mokhoa o batang ke terata ea disk. Japane (JIS) e bitsoang cold forging (cold forging), China (GB) e bitsoang cold heading, outside screw factory like to call head.

2. Likhopolo tsa motheo tsa ho forging tse batang

Cold forging e bua ka tšepe recrystallization mocheso tlas'a mefuta e fapaneng ya modumo theha. Ho ea ka khopolo ea metalology, mocheso oa recrystallization oa lisebelisoa tse sa tšoaneng tsa tšepe o fapane. T = (0.3 ~ 0.5) T qhibiliha. Mocheso o fokolang oa recrystallization oa litšepe tse nang le ferrous le tse se nang ferrous. Esita le mochesong oa kamore kapa mocheso o tloaelehileng, mokhoa oa ho etsa loto le thini ha o bitsoe ho foratla ka mokhoa o batang, empa ke ntho e chesang. Empa tšepe, koporo, aluminium e etsang ts'ebetso ka mocheso oa kamore e ka bitsoa ho forging e batang.

Ka metallics, ho qaptjoa ha thepa e futhumetseng ka holim'a mocheso oa recrystallization (hoo e ka bang 700 ℃ bakeng sa tšepe) ho bitsoa ho chesa ho chesang.

Bakeng sa litšepe tsa tšepe, mocheso oa recrystallization o ka tlase le o phahameng ho feta o tloaelehileng oa mocheso o bitsoa forging e mofuthu.

Melemo ea sehlooho se batang (extrusion)

Ha ho etsoa li-fasteners, theknoloji e batang ea lihlooho (extrusion) ke theknoloji e ka sehloohong ea ho sebetsa. Sehlooho se batang (extrusion) ke sa sehlopha sa ts'ebetso ea khatello ea tšepe. Ka tlhahiso, ka mocheso o tloaelehileng, tšepe e sebelisoa matla a ka ntle, e le hore tšepe e entsoeng ka hlobo e reriloeng esale pele, mokhoa ona o atisa ho bitsoa sehlooho se batang.

Ho thehoa ha fastener leha e le efe hase feela mokhoa oa deformation oa sehlooho se batang, se ka hlokomeloa nakong ea lihlooho tse batang, ho phaella tabeng ea ho senya, empa hape e tsamaisana le extrusion ea pele le ea morao, extrusion e kopantsoeng, ho itšeha, ho phunya le tse ling. mekhoa ea deformation. Ka hona, lebitso la sehlooho se batang tlhahisong ke lebitso le tloaelehileng feela, 'me le lokela ho bitsoa sehlooho se batang (pete) ka nepo.

Sehlooho se batang (extrusion) se na le melemo e mengata, se loketse tlhahiso e kholo ea li-fasteners. Melemo ea eona e ka sehloohong e kenyelletsa lintlha tse latelang:

Sekhahla se phahameng sa ts'ebeliso ea tšepe, sehlooho se batang (hata) ke mokhoa oa ho fokotsa, ha ho na ho itšeha, joalo ka molamu oa ho sebetsa, li-cylinder head hex socket screws, mokhoa oa machining oa hex head bolt, sekhahla sa ts'ebeliso ea tšepe ka 25% ~ 35%, le feela ka mokhoa o batang oa sehlooho (ho petetsa), mme sekhahla sa ts'ebeliso ea eona se ka ba holimo ho 85% ~ 95%, ke hlooho feela, mohatla le hlooho ea hex e khaola tse ling tsa ts'ebetso ea ts'ebeliso.

Tlhahiso e phahameng: ha e bapisoa le ho itšeha ka kakaretso, sehlooho se batang (extrusion) se etsang katleho se phahame ka makhetlo a mangata ho feta.

Lisebelisoa tse ntle tsa mechine: lihlooho tse batang (extrusion) li sebetsana le likarolo, hobane fiber ea tšepe ha e khaole, kahoo matla a molemo haholo ho feta ho itšeha.

E loketse bakeng sa tlhahiso ea othomathiki: li-fasteners (hape li kenyelletsa likarolo tse ling tse bōpehileng hantle) tse loketseng ho hlahisa lihlooho tse batang (extrusion) ha e le hantle li na le likarolo tse lekanang, tse loketseng ho hlahisa mochine o batang ka lebelo le phahameng, hape ke mokhoa o ka sehloohong oa tlhahiso ea bongata.

Ka mantsoe a mang, mokhoa o batang oa sehlooho (extruding) ke mofuta oa mokhoa oa ts'ebetso o nang le phaello e pharalletseng ea moruo, e sebelisoang haholo indastering ea fasteners. Hape ke mokhoa o tsoetseng pele oa ts'ebetso o sebelisoang haholo malapeng le linaheng tse ling ka tsoelo-pele e kholo.