The hydraulic pipe burst and sprayed onto the red steel. Did the fire extinguisher in the workshop work properly?

2026-11-04

The hydraulic pipe burst and sprayed onto the red steel. Did the fire extinguisher in the workshop work properly? "BANG!!"   It wasn't a broken roll, nor a pile-up of steel. It was a high-pressure...

From the fracture of a working roll, we can see the loopholes in the daily inspection of the rolling line.

2026-11-04

Roll Breakage Horror: Observing the Flaws in Daily Inspection of the Rolling Line   "BANG!"   It wasn't an explosion or a pipe burst; it was a dull thud coming from within the rolling mac...

The roller replacement time is too long? You can still achieve 5 waiting points by manually removing the rollers.

2026-10-10

The roll change process couldn't be completed on time? There are 5 waiting points that can be dealt with without purchasing equipment. Roll change is the most time-consuming task on the rolling line.   The ...

The rolls are cracking and breaking off? Don't blame the quality yet. Check if the cooling water nozzles are clogged or not.

2026-10-10

During the time of changing the rolls, there were numerous hot cracks on the surface of the removed working rolls. Some of them had even fallen off and peeled off. The team leader shook his head and said, "These rolls are ...

The supporting roller's old shaft is axially disengaged? Don't just tighten the locking nut. Check these four clearances.

2026-10-10

Does the supporting roller's main shaft axially shift out? Don't just tighten the locking nut; check these four clearances. The axial movement of the supporting roller is a problem that plagues hot rolling, medium a...

The replacement of rolls is too frequent? The costs are still high? 3 tricks to double the lifespan of the rolls directly!

2026-09-03

In steel rolling production, the rolls are the "teeth" of the rolling machine. A high frequency of roll replacement not only directly increases the cost of spare parts, but more critically, frequent machine shutdowns ...

The electricity consumption during the rolling process remains high? Don't just focus on the electricity bill!

2026-09-03

In the steel rolling workshop, electricity consumption is the second-largest cost after raw materials. At every meeting, the boss would slam his fist on the table and ask, "Why did we exceed the target again?" &nb...

Fushun New Steel reduced the cost of rolling mill bearings per ton of steel from 0.58 yuan to 0.21 yuan. What did they do right?

2026-09-03

Roller bearings are the "heart" of the rolling mill and also the "major cost" of the rolling line spare parts. Many factory managers are overwhelmed by the tonnage steel cost assessment, but how to achieve c...

Can't solve the problem by simply removing the oxide scale? A comprehensive solution covering the entire process from the heating furnace to the final rolling stage.

2026-08-11

Surface defects such as spots, stripes, and indentations on hot-rolled steel strips are largely caused by the pressing of iron oxide scale into the material. Many teams, when encountering surface quality complaints, only increa...

Overall thickness deviation at both ends? Thermal rolling AGC system commissioning + process parameter optimization ideas

2026-08-11

In the production of hot-rolled strip steel, the thickness deviation at the head and tail is a common and long-standing problem that has plagued the frontline workers - during the stages of head threading and tail steel throwin...

After changing the rolls, the first coil of steel frequently exceeds the tolerance limits? Practical operation plan for roll gap calibration and hot roll diameter compensation

2026-08-10

Roll change is the most common operation in the hot rolling workshop, but many teams have encountered the same common problem: after the new working rolls are put into operation, the thickness of the first few rolls or even the...

The process of changing rolls on the production line takes a long time and involves a lot of rework? This rapid roll-changing process optimization solution can bring about efficiency improvements upon

2026-07-06

Preface Line change of rolls is the most frequent downtime maintenance process in steel rolling production, and it is also a key node that affects the effective operation rate of the production line. For most conventional r...