Sotto la luce del sole, ci sono bande di pigmento a strisce nei prodotti. Questo problema dovrebbe essere considerato da due aspetti: le proprietà fisiche e meccaniche delle materie plastiche e il processo di stampaggio delle materie plastiche
1. La temperatura dell'attrezzatura per lo stampaggio a iniezione non è ben controllata, and the color masterbatch cannot be fully mixed with the resin after entering the mixing chamber.
2. Injection molding machine did not add a certain back pressure, screw mixing effect is not good.
3. Poor dispersion of Color Masterbatch or poor plasticization of resin.
The process can be adjusted as follows:
1. Slightly increase the temperature of the mixing chamber near the blanking port
2. Apply back pressure to the injection molding machine.
If it is still not good after the above debugging, it may be the dispersity or matching problem of color masterbatch and resin, and it should be solved by contacting the color masterbatch manufacturer.
After using some color masterbatch, the product appears to be easy to crack
This may be due to the poor quality of dispersants or additives selected by the manufacturer, resulting in poor diffusion and mutual solubility, which affects the physical and mechanical properties of the products.
The color is too dark (too light) after using according to the proportion in the color master manual
Although this problem is simple, there are many possibilities
1. The color master has not been tested seriously, and the pigment “target =”_ Too little or too much pigment
2. The measurement is not accurate when it is used, and there are a lot of random measurement phenomena in domestic enterprises, especially in small and medium-sized enterprises
3. There is a problem in the matching of color masterbatch and resin, which may be due to improper selection of Color Masterbatch carrier, or the manufacturer changing the resin variety at will
4. The temperature of the machine is improper and the color masterbatch stays in the machine for a long time.
Treatment procedure: in primo luogo, check whether the resin variety matches the color masterbatch and whether the measurement is accurate. la progettazione delle materie prime, adjust the machine temperature or speed. If there are still problems, contact the color masterbatch manufacturer. With the same color masterbatch, resin and formula, why are the colors of products injected by different injection molding machines different?
This is often caused by the injection molding machine. Different injection molding machines have different mechanical conditions due to different manufacturing, use time or maintenance conditions, especially the difference of the close degree between the heating element and the barrel, which makes the dispersion state of color masterbatch in the barrel different. After changing another brand of resin, the same color masterbatch and formula, the color has changed. Cinque elementi in stampo di plastica? The density and melt index of different brands of resin will be different, so the performance of resin will be different, and the compatibility with color masterbatch will also be different, resulting in color change. Parlando in generale, as long as the density and melt index are not different, the color difference will not be too big, and the color can be corrected by adjusting the amount of color masterbatch. Will pigment migration during storage affect the quality of products? Some color masterbatch pigment content (or dye) is very high, Il contenuto d'acqua del materiale di iniezione è troppo alto, migration phenomenon is normal. In particolare, the color masterbatch with dyes will have serious migration. But this does not affect the quality of the product, because the pigment in the product is in the normal color concentration after the color masterbatch is injected into the product.
Some injection products have poor luster
There are many possibilities:
1. The nozzle temperature of the injection molding machine is too low
2. The mold finish of injection molding machine is not good
3. The product molding cycle is too long
4. Too much titanium dioxide is contained in color masterbatch
5. The dispersion of color masterbatch is not good
After a period of time, some plastic products will fade
The quality of the basic pigment used by the manufacturer is not good, resulting in drift phenomenon.
ABS color masterbatch is particularly prone to color differences
The color difference of different brands of ABS produced in different countries is large. Even if the same brand of ABS, there may be color difference in each batch number. Certo, there will be color difference after using color master. This is due to the characteristics of ABS, there is no thorough solution in the world. Tuttavia, this color difference is generally not serious.
Informazioni su JasonMould Industrial Company Limited
Jasonmould è un Produttore di stampi in Cina di stampi in plastica- stampo da iniezione, stampi per pressofusione, soffiaggio plastica, stampaggio rotazionale, medico stampaggio ad iniezione plastica, due colpi stampaggio ad iniezione plastica, stampaggio a inserto, sovrastampaggio, stampaggio ad iniezione di metalli, micro stampaggio ad iniezione, stampaggio a iniezione di polvere, stampaggio ad iniezione di ceramica, stampaggio ad iniezione di liquidi, stampaggio a iniezione husky, muffa domestica, stampo per colata, strumento di stampo, stampi personalizzati, stampi per porcellana, strumenti di prototipazione rapida, strumenti di prototipazione in plastica, utensileria per punzonatrice, muoiono e utensili per parti di telefoni cellulari/cellulari, parti automobilistiche, aspirapolvere, strumenti ricaricabili, telefoni, fotocopiatrici, computer, altoparlanti multimediali, e molti altri prodotti elettronici ed elettrodomestici. E anche un produttore di prodotti in plastica, produttore di stampi Cina- parti in plastica, serbatoio dell'acqua in plastica, palline di plastica, contenitori di plastica, fibbia di plastica, ancora di plastica, gancio di plastica, cucchiaio di plastica, raccordo per tubi in plastica, caduta di plastica, stoviglie di plastica, bicchieri di plastica, bottiglie di plastica, vassoio di plastica, contenitore cosmetico in plastica, contenitore di plastica, contenitore per alimenti in plastica, sedie di plastica, tappi di plastica, chiusura con tappo in plastica, tubi di plastica, tubi dell'acqua in plastica, manopole di plastica, tubi di plastica, scatole di plastica, rastrelliere di plastica e così via.
Contatto:
Persona: James Yuan
Azienda: JasonMuld Industrial Company Limited
Aggiungere: Villaggio LongGang,Città di LongXi,Contea di BoLuo,HuiZhou Cityhou,Provincia di Guangdong, Cina
telefono: 86-752-6682869
E-mail: [email protected]
Luogo: https://www.jasonmolding.com/custom-injection-molding/
