clay tunnel kiln operative | drying tunnel operator | dryer kiln operator | tunnel kiln operator

sintering machine

annealing kiln worker | metal annealing operative | metal annealer | metal annealing worker

billet heater | mining oven technician | heat treating technician | heat treatment furnace operator

sintering furnace [ sintering machine | sinter machine ]

sintering furnace

Moreover, the substrate for DOC is a single block honeycomb cylinder whereas the DPF substrate is formed by gluing several filtering elements and the channels of the DPF are plugged, which is not the case for DOC. It follows then that the production of the DPF substrate necessitates a non oxide high temperature sintering furnace, gluing system and plugging machines and these equipments are not necessary for the production of the DOC substrate. It appears therefore that it is not possible to produce DPF and DOC substrate on the same production lines without significant additional costs.

For the manufacture of DPF substrates a non-oxide high temperature sintering furnace, gluing and plugging equipment are needed, which are not necessary for the production of substrates for DOC. Thus, the interested parties argue that it is not possible to produce DPF on the DOC’s production lines or vice versa.

As far as the price is concerned, the Commission supports the view of Saint-Gobain and the interested party with withheld identity in this regard and observes that there is a big price difference between substrates of DOC and DPF, since the materials used for the substrates for DPF are higher performance materials whose production implies higher costs (for example, the use of a non-oxide high temperature sintering furnace is required).

As regards the project "Construction of circular cooler for sintering plant 2", which aims at reducing dust emissions from the sintering furnace, a significant amount of savings is expected on the production costs.