3 Zinthu Zomwe Muyenera Kudziwa Zokhudza PDC Brazing

Odula a PDC amawongoleredwa ku chitsulo kapena thupi la matrix la PDC drill bit. Malinga ndi njira yowotchera, njira yowotchera imatha kugawidwa kukhala moto woyaka moto, kutsekemera kwa vacuum, kulumikiza kwa vacuum diffusion, kuthamanga kwapamwamba kwambiri, kuwotcherera kwa laser, ndi zina. Lero tikufuna kugawana pang'ono za PDC flame brazing.

Kodi moto woyaka ndi chiyani?

Kuwotchera kwa moto ndi njira yowotcherera yomwe imagwiritsa ntchito lawi lopangidwa ndi kuyaka kwa gasi pakuwotha. Njira yayikulu yowotcha moto imaphatikizapo chithandizo cham'mbuyo chowotcherera, kutentha, kusunga kutentha, kuziziritsa, chithandizo cha post-weld, etc.

Kodi ntchito yowotcha moto ya PDC ndi yotani?

1. Pre-weld mankhwala

(1) sandblast ndi kuyeretsa PDC wodula ndi PDC kubowola thupi pang'ono. Chodulira cha PDC ndi kubowola sikuyenera kuipitsidwa ndi mafuta.

(2) konzani solder ndi flux. Nthawi zambiri timagwiritsa ntchito 40% ~ 45% solder yasiliva ya PDC brazing. Flux imagwiritsidwa ntchito kuteteza oxidation panthawi ya brazing.

2. Kutentha ndi kuteteza kutentha

(1) Preheat the PDC kubowola pang'ono thupi mu ng'anjo wapakati pafupipafupi pafupifupi 530 ℃.

(2) Mutatha kutentha, gwiritsani ntchito mfuti yamoto kutentha thupi ndi PDC cutter. Tidzafunika mfuti ziwiri zoyaka moto, imodzi yowotchera pobowola ndi ina yowotchera chodulira cha PDC.

(3) Sungunulani solder mu PDC recess ndi kutentha mpaka solder asungunuke. Ikani PDC mu dzenje la concave, pitirizani kutentha thupi la kubowola mpaka solder itasungunuka ndi kusefukira ndi kusefukira, ndikuthamanga pang'onopang'ono ndikuzungulira PDC panthawi ya soldering. Ikani flux pamalo pomwe chodulira cha PDC chimafunika kuzimitsidwa kuti mupewe oxidation.

3. Kuziziritsa ndi pambuyo weld mankhwala

(1). Odulira a PDC akayatsidwa, ikani pobowola PDC m'malo osungira kutentha munthawi yake, ndikuziziritsa pang'onopang'ono kutentha kwa pobowola.

(2) Pambuyo pozizira pobowola mpaka 50-60 °, titha kutulutsa chobowola, sandblast ndikupukuta. Yang'anani mosamala ngati malo owotcherera a PDC ndi owotcherera mwamphamvu komanso ngati PDC yawonongeka.

Kutentha kotentha ndi kotani?

Kulephera kutentha kwa polycrystalline diamondi wosanjikiza ndi kuzungulira 700 ° C, kotero kutentha kwa diamondi wosanjikiza ayenera kulamulidwa m'munsimu 700 ° C pa ndondomeko kuwotcherera, kawirikawiri 630 ~ 650 ℃.

Ngati muli ndi chidwi ndi ndodo za tungsten carbide ndipo mukufuna zambiri ndi zambiri, mutha KULUMIKIZANA NAFE pa lamya kapena makalata kumanzere, kapena TITUMIZANI MA MAIL pansi pa tsamba.