Yonga levha üretim süreçlerinde pres süresinin enküçüklenmesi

Yıl 2018, Cilt: 24 Sayı: 4, 658 - 664, 17.08.2018

Aslan Deniz Karaoğlan Mustafa Mert Demir Mustafa Murat Çarkacı

Öz

Dünyada
yonga levha üretiminde yaşanan yoğun rekabet, maliyetler üzerinde etkili önemli
parametrelerden biri olan işlem sürelerinin enküçüklenmesini zorunlu
kılmaktadır. Bu çalışmada, deney tasarımı tekniklerinden yaygın olarak
kullanılan yanıt yüzey yöntemi (YYY)’nin matematiksel alt yapısı kullanılarak,
üretim hızını arttırmak amacıyla pres süresinin enküçüklenmesi amaçlanmıştır.
Bu amaçla yonga levhanın pres süresi üzerinde etkili değişkenlerden; yonga
levhanın rutubeti, banyo jeli süresi, yonga levhanın altı için gravür jeli
süresi, yonga levhanın üstü için gravür jeli süresi, akış, final ağırlığı,
kağıdın rutubeti, üreformaldehit (UF) miktarı, melamin formaldehit (MF)
miktarı, pres yoğunluğu, pres basıncı ve pres sıcaklığı girdilerinin optimum
değerleri araştırılmıştır. Bu sayede pres süresi azaltılırken, üretim miktarı
ve hattın verimliliğinin arttırılması amaçlanmıştır. Modelleme amacıyla, her
biri 5 tekrarlı 56 tane gözlem değeri kullanılarak girdilerle pres süresi
arasındaki matematiksel ilişki belirlenmiş ve ardından eniyileme yapılmıştır.
Çalışmanın sonunda, hali hazırda seçilen ürün tipi için gözlenen en düşük pres
süresi olan 13.57 sn. 11 sn. kadar düşürülmüştür.

Anahtar Kelimeler

Yonga levha, Pres süresi, Eniyileme

Minimization of pres time at particleboard production

Öz

The
intense competition in the production of particleboard in the world requires minimization
of process times which is one of the important parameters effective on costs.
In this study, it is aimed to minimize the press time in order to increase the
production speed by using the mathematical sub-structure of the response
surface method (RSM) which is one of the well-known design of experiments
techniques. For this purpose, optimum levels of the factors those have effect
on press time namely humidity of the particleboard, bath gel time, gravure gel
time for the bottom of the particleboard, gravure gel time for the top of the
particleboard, flow, final weight, humidity of the paper, amount of
urea-formaldehyde (UF), amount of melamine formaldehyde (MF), press density,
press pressure and press temperature were investigated. In this case, It is
aimed to increase the production amount and productivity of the line while
decreasing the press time. For the purpose of modeling, the mathematical
relationship between the factors and the press time was determined by using 56
observation values of 5 repetitions each and then optimization was performed.
At the end of the study, the press time is reduced to 11 seconds from 13.57
seconds-which is the lowest press time observed for the currently selected item
type.

Anahtar Kelimeler

Particleboard, Press time, Optimization

Kaynakça

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