Huya pakunzwisisa simbi yekumhanya
High-speed simbi (HSS) isimbi yemudziyo ine kuoma kwepamusoro, kukwirira kupfeka kusagadzikana uye kupisa kwakanyanya, inozivikanwawo sesimbi yemhepo kana simbi yekumberi, zvinoreva kuti inogona kuomeswa kunyangwe ichitonhodzwa mumhepo panguva yekudzima, uye wakapinza zvikuru. Inonziwo simbi chena.
Xinfa CNC zvishandiso zvine hunhu hwemhando yakanaka uye mutengo wakaderera. Kuti uwane rumwe ruzivo, ndapota shanya: https://www.xinfatools.com/hss-tap/
Simbi inomhanya-mhanya isimbi yealloy ine kuumbwa kwakaoma, ine carbide-forming zvinhu zvakaita se tungsten, molybdenum, chromium, vanadium, uye cobalt. Huwandu hwezvinhu zvealloying hunenge 10-25%. Inogona kuramba ichichengetedza kuoma kwepamusoro pasi pemamiriro ekupisa kukuru kunokonzerwa nekucheka kwepamusoro-soro (inenge 500 ℃), uye HRC yayo inogona kuva pamusoro pe 60. Ichi ndicho chinonyanya kukosha chimiro chesimbi yepamusoro - tsvuku yakaoma. Mushure mekudzima uye kudziya kwakadzika, kabhoni mudziyo simbi ine kuoma kwakanyanya pakupisa kwekamuri, asi kana tembiricha yakwira kupfuura 200 ° C, kuomarara kunodonha zvakanyanya, uye kuomarara kwadzikira kusvika padanho rakafanana nerenzvimbo yakavharwa. 500°C. , Yakarasika zvachose kukwanisa kutema simbi, iyo inoderedza kushandiswa kwekabhoni simbi yekucheka zvishandiso. Simbi yepamusoro-soro inogadzira kukanganisa kunouraya kwecarbon tool steel nekuda kwekuoma kwayo kwakatsvuka.
Simbi inomhanya-mhanya inonyanya kushandiswa kugadzira mashizha matete akaomesesa uye anodzivirira-anodzivirira simbi yekucheka maturusi, pamwe neakakwira-tembiricha mabheji uye inotonhora extrusion inofa, senge maturusi ekutenderedza, mabhiti ekuboora, hobs, muchina saw blades, uye inoda mold.
▌ Ngatidzidzei nezve tungsten simbi
Tungsten simbi (tungsten carbide) ine mutsara wezvinhu zvakanakisa zvakadai sekuoma kwepamusoro, kupfeka kusagadzikana, simba rakanaka uye kuoma, kupisa kwekushisa uye kusagadzikana kwekuora, kunyanya kuoma kwayo kwakanyanya uye kupfeka kusagadzikana, kunyange pakupisa kwe500 ° C. Inoramba ichiripo. haina kushanduka, uye ichine kuoma kwakanyanya pa1000 ° C.
Tungsten simbi, iyo huru inoumba tungsten carbide uye cobalt, iyo inoverengera 99% yezvese zvinhu, uye 1% imwe simbi, saka inonzi tungsten simbi, inozivikanwawo secemented carbide, uye inoonekwa sezino remazuva ano. industry.
Tungsten simbi ndeye sintered composite zvinhu inoumbwa ingangoita imwe simbi carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, uye tantalum carbide zvinhu zvakajairika zvetungsten simbi. Ukuru hwezviyo hwechikamu checarbide (kana chikamu) chinowanzova pakati pe 0.2-10 microns, uye zviyo zvecarbide zvinobatwa pamwechete uchishandisa simbi binder. Binder masimbi anowanzo simbi dzeboka resimbi, anowanzo shandiswa ari cobalt uye nickel. Nokudaro, kune tungsten-cobalt alloys, tungsten-nickel alloys uye tungsten-titanium-cobalt alloys.
Kupisa kwe tungsten simbi ndiko kudzvanya hupfu mubillet, wobva waipisa muchoto chinopisa kune imwe tembiricha (sintering tembiricha), chengeta kwenguva yakati (kubata nguva), wozoitonhodza pasi kuti uwane. iyo tungsten simbi zvinhu zvine zvinhu zvinodiwa.
① Tungsten-cobalt simende carbide
Izvo zvakakosha zvinoumba tungsten carbide (WC) uye binder cobalt (Co). Giredhi rayo rinoumbwa ne "YG" (kutanga kweChinese pinyin ye "yakaoma, cobalt") uye chikamu cheavhareji cobalt yemukati. Semuenzaniso, YG8 inoreva kuti avhareji WCo = 8%, uye yasara ndeye tungsten-cobalt simende carbide ye tungsten carbide.
②Tungsten-titanium-cobalt simende carbide
Izvo zvakakosha zvinoumba tungsten carbide, titanium carbide (TiC) uye cobalt. Giredhi rayo rinoumbwa ne "YT" (kutanga kweChinese pinyin ye "yakaoma, titanium") uye avhareji yemukati yetitanium carbide. Semuenzaniso, YT15 inoreva kuti avhareji TiC=15%, uye yasara ndeye tungsten carbide uye cobalt-based tungsten-titanium-cobalt simende carbide.
③Tungsten-titanium-tantalum (niobium) -yakavakirwa simende carbide
Zvikuru zvinoumba tungsten carbide, titanium carbide, tantalum carbide (kana niobium carbide) uye cobalt. Rudzi urwu rwesimende carbide inonziwo general cemented carbide kana universal cemented carbide. Giredhi rayo rinoumbwa ne“YW” (mavambo eChinese pinyin ekuti “zvakaoma” uye “wan”) pamwe nenhamba yenhevedzano, yakadai seYW1.
Tungsten simbi ine nhevedzano yezvivakwa zvakanakisa senge kuomarara kwepamusoro, kusapfeka, simba rakanaka uye kuomarara, kusapisa kupisa uye kusaita ngura, kunyanya kuomarara kwayo kwakanyanya uye kusapfeka, izvo zvinoramba zvisina kushanduka kunyangwe patembiricha ye500 ° C. Ichiri nekuoma kwepamusoro pa1000 ° C. Cemented carbide inoshandiswa zvakanyanya sechinhu, sematurusi ekutenderedza, milling cutters, drills, maturusi anofinha, etc. Kucheka kweiyo carbide itsva simende kunosvika mazana nemazana kune iyo carbon steel.
Nguva yekutumira: Aug-09-2023
