Dab tsi yog qhov tseem ceeb ua rau cov hmoov uas seem thiab ntxhib saum npoo ntawm cov ntses cov khoom noj khoom haus kawg?

 

 

1. Cov Khoom Siv Raw Thiab Cov Mob Theem: Cov tshuaj uas tsis muaj kuab heev nyob rau hauv cov khoom siv raw (piv txwv li, pob kws lossis nplej cov ntsiab lus<30%, lacking starch and colloids), insufficient steam addition during conditioning (steam <100kg per ton of raw material), and excessively low moisture content in the conditioned material (<20%). Insufficient viscous substances prevent the raw material particles from binding together, leading to easy powdering after molding; low steam and low moisture content result in dry and loose materials that cannot form a compact structure during extrusion, resulting in a rough surface.

 

2.Expansion molding stage: Wear on the inner wall of the ring die orifice (roughness Ra > 1.6μm), wear on the surface pattern of the pressure roller (pattern depth < 0.5mm), and excessively high extrusion speed of the extruder (>10m / min). Roughness nyob rau sab hauv phab ntsa ntawm tuag orifice ua rau saum npoo ntawm cov hais kom khawb thaum lub sij hawm extrusion, ua rau muaj qhov tsis sib xws; Hnav ntawm lub siab cov khoom siv tiv thaiv cov khoom lag luam zoo gripping, ua rau muaj cov qauv tsis txaus; Siab extrusion ceev ua rau lub sijhawm luv luv ntawm cov khoom siv nyob rau hauv lub neej tuag orifle, uas ua rau muaj kev tsis zoo.

 

3. Cooling and processing: Excessive cooling fan speed (>5m/s), excessive cooling time (>15 feeb), thiab tsis muaj roj txheej ntawm cov khoom tiav. Ntau tus kiv cua kom zoo li zoo li hmoov zoo los ntawm particle nto thiab ua rau muaj noo noo kev poob, ua rau cov hais kom qhuav thiab nkig; Lub sijhawm ua kom txias dhau los ua rau cov dej ntws ntau dhau, muaj kev sib tw zittleness yooj yim, thiab hmoov av yooj yim; Grease txheej ua cov yeeb yaj kiab tiv thaiv ntawm cov nplaim taws, thiab nws qhov kev tsis muaj exacerbates hmoov ntug.

 

 

 

1. Cov khoom lag luam ua haujlwm:

Hloov cov pulverizer screen kom nce cov khoom siv raw rau 80-100 mesh (siv ib qho sieve kws ntsuam xyuas kom paub tseeb tias ntau dua li 95% ntawm cov ntu dhau los ntawm ib 80-Mesh sab cib). Yog tias coarse hais nyob tom qab pancerization, kos cov ris ntawm pulverizer rublizer rauj (Hammer hnav ntau dua 5 hli yuav tsum tau hloov).

Yog tias qhov sib npaug ntawm cov ntxhib fiber ntau ntxiv yog qhov siab, ua ntej pulverize cov khoom siv roj sib cais ua ntej sib tov nrog lwm cov khoom siv raw. Hloov chaw, ntxiv 0.3% -0.5% sodium carboxymethyl cellulose (cmc) raws li ib tug los txhim kho cov khoom viscosity thiab cohesion.

 

2. Cov txheej txheem kho kom haum:

Nce cov chav ntxiv, tswj nws rau 60-70 kg ib tev ntawm cov khoom siv raw. Ib txhij, nce qhov kev kub ntxhov rau 100-110℃kom ntseeg tau cov hmoov txhuv nplej siab mus txog 80% (txheeb xyuas cov hmoov txhuv nplej siab los ntawm cov hmoov txhuv nplej siab).

Hloov kho cov khoom siv kho lub kaum (los ntawm 30℃mus rau 45 degree) txhawm rau txhim kho kev sib xyaw ua ke, ua rau cov khoom siv qhuav lossis ntub dej. Tom qab mob, cov khoom yuav tsum xav tias du thiab dawb ntawm granules thaum kneaded los ntawm tes.

 

3. Kev ua kom zoo ntawm cov extrusion moulding txheej txheem:

Txo cov ntsia hlau ceev ntawm extruder rau 350-450 r / min kom txuas lub sijhawm nyob hauv lub sij hawm ntawm 20-30 feeb), cia cov khoom uas yuav tsum tau muab cov khoom siv tau zoo thiab zoo li;
Disassemble lub nplhaib tuag thiab siv cov xuab zeb zoo (800 grit lossis siab dua) rau polish lub qhov sab hauv ntawm cov khoom khawb thiab cov khoom seem. Tom qab pOLISHING, ntxuav cov tuag lub qhov nrog cov cua compressed kom ntseeg tau lub sab hauv yog tus;
Kuaj xyuas qhov saum npoo ntawm lub siab ntawm cov menyuam. Yog tias tus qauv hnav lossis muaj cov dents, hloov lub siab uas cov tawv nqaij. Tom qab kev teeb tsa, kho qhov sib txawv ntawm lub siab cov menyuam thiab lub nplhaib tuag rau 0.1-0.2 mm los xyuas kom ntseeg tau cov kev siab siab.

 

 

 

 

Mikim yog qhov siab - Tech Enterprise Intolation Ingressating R & D, ntau lawm, thiab kev muag khoom. Nws pub cov cuab yeej siv extrusion siv lub siab- cov txheej txheem kub, high}}} qhov kev kub siab, thiab txuag 8% -15% ntawm cov nqi pub noj. Pellet diamers yog kho tau los ntawm 1-16 mm, thiab nws tshwj xeeb kev hloov kho kom haum rau cov ntses, cws, roob ris, thiab tsiaj noj. Cov Cheebtsam tseem ceeb yog muaj los ntawm cov hom thoob ntiaj teb thiab yauv muaj kev kho mob tshwj xeeb, ua kom muaj kev nyab xeeb thiab muaj kev nyab xeeb, thiab kev thaj yeeb ntawm lub siab.

 

Txuj ci thiab Honors

 

 

Cov qhua tuaj noj mov

 

 

 

 

1. Tus nqi ntawm cov ntses noj mov pellet ntau lawm kab?

Tus nqi li ntawm kwv yees li $ 25,000- $ 65,000

2. Koj puas muab cov kev pab kho rau koj cov neeg siv khoom?
Yog lawm, peb muaj kev kawm zoo dua tom qab {{0} Kev muag khoom txij nkawm rau peb cov neeg siv khoom.

 

Hu rau tam sim no