Yuav Ua Li Cas Peb Lub Pob PtfeTeflon?

Kaifeng Tswb Stainless Steel Ball Manufacture Co., Ltd feem ntau tsim siab precision G0 G1 G2 1mm txog 200mm khoom thiab hollow Ptfe Teflon Pob .

Niaj hnub no peb yuav qhia rau koj paub peb lub Hoobkas yuav ua li cas los tsim Teflon Ball .

Cov txheej txheem tsim khoom ntawm PTFE (polytetrafluoroethylene) cov khoom yas yog tsuas yog raws li nws cov txheej txheem txias thiab sintering molding, uas yog tsim rau refractory thiab siab viscosity polymer cov ntaub ntawv:

Core ntau lawm txheej txheem:

1. Raw khoom npaj

Siv cov tshuaj tshem tawm lossis dispersed PTFE resin hmoov.
Cov khoom uas raug tshem tawm yog qhov loj (feem ntau yog 50-200 μ m), haum rau cov khoom siv phab ntsa tuab nrog cov kev xav tau siab; Dispersed resin hais yog finer, haum rau complex los yog nyias-walled lug.
Yog tias qhov kev ua tau zoo yuav tsum tau ua (xws li hnav tsis kam thiab compression tsis kam), muab cov khoom ntxiv xws li iav fiber ntau thiab bronze hmoov ntxiv.

2. Cold pressed billet (preform)

Load PTFE hmoov rau hauv ib lub pwm kheej kheej.
Siv kev kub siab (feem ntau 30-50 MPa) ntawm chav tsev kub thiab nias rau hauv lub cev ntom ntom
Nyob rau theem no, kev saib xyuas yuav tsum tau them rau kev pub mis tsis tu ncua, kev ua kom qeeb qeeb, thiab ntau qhov tso pa tawm kom tsis txhob muaj npuas, tawg, lossis tsis sib xws.

3. Sintering

Muab lub cev txias txias rau hauv lub qhov cub sintering thiab kub rau 360-380℃(327℃siab tshaj qhov melting point ntawm PTFE).
Ua kom sov rau ib lub sijhawm (xws li 1-4 teev) kom yaj, tawg, thiab fuse cov khoom, tsim cov qauv ntom ntom

Kev siv lub tshuab cua sov ua kom sov tuaj yeem txo cov kev ntxhov siab sab hauv thiab txhim kho cov khoom sib xws.

4. Cua txias

Tswj tus nqi txias (feem ntau qeeb qeeb) kom tswj cov crystallinity thiab tsis txhob deformation los yog tawg los ntawm shrinkage sai
Kev ua kom txias qeeb yog qhov muaj txiaj ntsig zoo rau kev txhim kho crystallinity (txog 92% -98%), yog li txhim kho cov khoom siv kho tshuab thiab tshuaj lom neeg.

5. Post processing (yeem)

Ua kev tig, polishing, lossis ntsuas qhov ntev ntawm cov sintered PTFE cov khoom kom ua tau raws li qhov siab - qhov yuav tsum tau ua.
Yog tias siv rau lub sijhawm tshwj xeeb (xws li kev sib khi, kev sib txuas), kev hloov kho saum npoo (xws li kev kho ntshav plasma, kev kho laser) tuaj yeem nqa tawm los txhim kho lub zog saum npoo.

Summary of Key Process Parameters

Txheej txheem	cov tsis tseem ceeb	Cov lus qhia
txias nias	Siab: 30-50 MPa	Muaj feem xyuam rau qhov ntom ntawm cov pob zeb thiab qhov ntom ntawm cov khoom kawg
sintering	Kub: 360-380 degree; Sijhawm: 1-4 teev	Xyuas kom tiav melting thiab densification
cua txias	tswj tus nqi	Tsis txhob sab hauv kev ntxhov siab thiab deformation