Surface oil stains, scratches, sticking boards, sticking rollers, and exploding rollers

Cause of Incidence

Insufficient lubrication

2. Local scoring, fuzzing, or foreign matter intrusion on roller surfaces

3. Roller fatigue or insufficient preheating

4. The emulsion liquid has an excessively high temperature, causing local overheating.

5. Poor board shape, excessive local stress

Exclusion Method

1. Check the emulsion concentration, saponification value, pH level, iron content, ash content, and temperature.

2. Inspect or replace rolling mills; remove foreign objects.

Preheating Rolling Rollers, Quantitative Replacement

4. Inspect emulsion nozzle, pressure

5. Control Panel Model

Section 2: Mill Vibration and Slippage

Cause of Occurrence

Rolling mill roller system, motor failure

2. Friction Change

Excessive lubrication

Exclusion Method

Inspect roller system transmission and motor system.

2. Check the emulsion concentration and saponification value (contamination oil content)

3. Inspect the roller surface roughness

4. Control processing rate

5. Inspect the surface condition of raw materials

Section 3: Poor Garment Fit

1. Zhong Lang

Reason

Insufficient Cooling

(2) Poor roll design, poor roll alignment

(3) Insufficient rolling force

Exclusion Method

(1) Check the emulsion temperature and cooling effect

(2) The roller design features a moderate reduction in the pull-out of the string roller.

Increase rolling force

2. Rib Wave

Cause of Occurrence

(1) Uneven cooling, localized overheating

(2) Poor roller design, inadequate roller alignment

(3) Insufficient rolling force, low tension

Exclusion Methods

(1) Inspect emulsion nozzle and pressure

(2) The roller design is appropriately reduced to minimize the pull-out of the string roller.

Increase rolling force, increase tension

3. Edge Wave

Reason for Occurrence

(1) Poor roller design, poor roller alignment

(2) Excessive rolling force, slow speed

Overcooling

Exclusion Method

(1) Increased roller design with appropriate widening of the roller string push

(2) Reduced rolling force, increased speed

(3) Check the emulsion temperature

4. Rib wave + edge wave

Cause of Occurrence

(1) Coiled material misalignment

(2) Local heat generation in roller mill

(3) Excessive pressure deviation

Exclusion Method

(1) Correcting Strip Center

(2) Inspect the emulsion cooling efficiency

(3) Inspect roller surfaces or replace rollers

(4) Adjust Pressure Deviation