（B）Vulnerable parts：

No.

Name

Brand

Quantity

Stock time

Remarks

1

Steel roller

self-control

1 piece /2 sets

30 days

Imported chrome plating materials

2

Steel roller bearing

NSK/NTN

2 /1 set

15 days

According to the procurement cycle

3

Heating tube

domestic

3 pieces / set

1 day

4

Thermocouple

domestic

1 piece / set

1 day

Adapt to the longest drying path

5

inner hexagon spanner

domestic

1 set / set

1 day

6

Adjustable wrench

domestic

1 piece / set

1 day

7

Valve body sealing ring

domestic

1 set / unit

1 day

8

Torque wrench

Japan

1 set / unit

15 days

9

Die head lifting truck

domestic

1 set / unit

15 days

10

Marble platform

domestic

1 set / unit

10 days

11

Feeding pipe

domestic

12m / set

1 day

12

Pole sampler

domestic

1 / set

2 days

13

Shim

TMAX

3 sets / unit

15 days

No.

Project

Technical parameter

Notes

1

Suitable system

Oily or aqueous lithium iron phosphate, lithium cobalt oxide, lithium manganate, ternary, nickel cobalt lithium manganate, lithium titanate, carbon graphite, etc

2

Operating substrate parameters

Aluminum foil (Cu):

thickness 9 ~ 25um;

Width 300 ~ 720mm;

Roll diameter max.500mm;

Weight max.500kg;

Copper foil (Cu): thickness 4.5 ~ 30um;

Width 300 ~ 720mm;

Roll diameter max.500mm;

Weight max.500kg；

Either single side light or double side light

3

Design width of roll surface

750 mm

4

Guaranteed coating width

200~680mm

5

Equipment mechanical running speed

40m/min

6

Equipment coating speed

1-32/min；

It depends on the drying condition

7

Suitable for slurry viscosity

2000~16000 Cps（Positive pole）

1000~16000 Cps（Negative pole）

8

Single side coating dry thickness range

40~200g/m2

9

Minimum intermittent length

Coating speed < 5mm within 15m/min;

Coating speed above 25m/min ＜ 8mm;

10

Minimum coating length of multiple sections

50mm

Coating speed≤12m/min

11

Solvent properties

Oily solvent NMP(s.g=1.033,b.p=204℃)

Aqueous solvent H2O/NMP(s.g=1.000,b.p=100℃)

12

Suitable solid content

Positive electrode S．C. 60%±20%

Negative pole  S．C. 50%±15%(PVDF system)

S．C. 50%±10%(SBR system)

13

Proportion

Positive electrode  1.5—2.59/cm2

Negative pole  1～1.89/cm2

14

Coating method

Double layer front and back 3-stage unequal interval coating / second side automatic tracking / continuous coating / field lattice coating

15

Roll change mode

Manual

16

Substrate running direction

Forward coating, substrate forward and reverse empty foil operation

No.

project

Technical parameter

Notes

1

Roller installation structure

CNC processing integral vertical plate installation (thickness 30mm).

2

Roller surface treatment

Surface oxidation treatment of metal aluminum roller, surface hardness HRC65; Over roll circular runout ≤ 20 μ m； Surface roughness Ra0.2; Parallelism ≤ 0.1mm;

3

Tension control system

Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%

4

Correction method

Automatic EPC control, stroke 120mm

5

Coiling method

Uncoiling up and down

The roll is fixed with a 3-inch inflatable shaft

Unwinding double air expansion shaft, double-sided support

Manual belt receiving platform, double pressure bar mode

6

Substrate running direction

Forward and reverse

7

Substrate running speed

50m/min

8

Maximum unwinding diameter

Ф500mm

9

Maximum bearing capacity of inflatable shaft

600Kg

10

Number of unwinding inflatable shafts

2 articles

11

Control system

Set the function operation button to complete the operations such as tape connection, pause, emergency stop, forward and reverse rotation, left and right alignment, etc

12

Unwinding speed

The unwinding speed is controlled by PLC according to the set coating speed and real-time tension change data; The unwinding power is provided by AC motor + turbine reducer;

No.

Project

Technical parameter

Notes

1

Installation structure mode

CNC processing thickness of 70 mm integral vertical plate structure, the overall weight of 2.6 tons, increase the ground bearing iron plate, reduce the ground bearing area.

2

Main drive motor

Servo motor

3

Rubber roller structure

To prevent the tension instability caused by the non separation of tension and ensure the stability of the coating surface density.

4

Distance adjustment between die head and coating roller

The servo motor cooperates with the high-precision absolute displacement sensor for closed-loop tracking control. The distance is set through the screen, 1~5000um, the adjustment resolution is 0.1um, and the repeated positioning accuracy is ≤± 0.3um.

5

Die head selection

The die lip of Mitsubishi special extrusion head is made of high wear-resistant and corrosion-resistant cemented carbide steel, and the surface is treated with tungsten carbide or chromium nitride. The straightness and flatness are ≤ 1.5 µ M

6

Die cavity structure

The multi pressure cavity slit (spray) coating head is adopted, which has strong process adaptability and helps to balance the transverse pressure, so as to make the transverse coating thickness consistent; The upper die of the coating head is designed with a deflection adjusting mechanism, which can adjust the parallelism of the upper and lower die lips

7

Pressure monitoring system

Feed pressure monitoring, reflux pressure monitoring, die cavity pressure monitoring; It can monitor the feeding process in real time, and give an alarm when there is blockage, with an accuracy of ≤ 0.001mpa

8

Feeding system

Japanese bingshen precision screw pump (2nbl15f (sus+epdm) pump) + precision servo motor, an effective 60L turnover bucket (material container), and has the functions of liquid level detection and liquid level mixing to prevent the sedimentation and overflow of slurry.

9

Coating intermittent function

Servo intermittent control valve system is adopted to ensure the stability of coating size.

10

Head and tail thinning function

The servo intermittent control valve system can adjust the head and tail thinning time and the stroke of the intermittent valve switch to adjust the head and tail thickness in real time.

11

Die head horizontal adjustment function

Adopt precise linear guide rail guidance and manual horizontal adjustment mode, so that the die head can be slightly adjusted ± 10mm in the horizontal position; Ensure the vertical alignment accuracy of the front and back sides

12

Matching and assembly of the upper part of the die head and the lower part of the die head

The digital torque wrench is used to ensure the assembly consistency and accuracy of the die head.

13

Roller surface treatment

Surface oxidation treatment of metal aluminum roller, surface hardness HRC65; Over roll circular runout ≤ 20 μ m； Surface roughness Ra0.2; Parallelism ≤ 0.1mm;

14

Coating roll (steel roll)

The surface is plated with imported hard chromium, with a diameter of Φ 295mm;

15

Tension

Full automatic PID closed-loop control constant tension, tension range 1 range 0~50n, tension control accuracy ± 1n

16

Stand alone head position

Installation and operation before drying

17

Laser alignment function

The laser alignment function is used to manually judge the alignment degree.

No.

Project

technical parameter

Remark

1

Oven structure

The first four sections are the main transmission ship structure, and the last six sections are the suspension oven structure.

2

Oven length

40 meters (4 meters / section, 10 sections in total)

3

Texture of material

Stainless steel, inner tank national standard SUS304, outer tank national standard SUS201

4

Driving mode of oven guide roller

The first four sections are the main transmission structure, and the last six sections are the suspension oven

5

temperature control

It is divided into the protection control of normal working temperature control and overtemperature monitoring alarm. In case of overtemperature, an audible and visual alarm will appear, and the main heating power supply will be cut off; Each section is completely controlled independently

6

Heating way

Electric heating, hot air circulation structure

7

Heating power of single section oven

Single section 24kw/4m (maximum starting power)

8

Temperature in drying channel

Design Max150 ℃, temperature difference in the area of single section oven ≤ 5 ℃

9

Box surface temperature during operation

≤45℃； The cotton filling thickness is 100mm;

10

Blowing mode

Upper and lower air blowing, upper and lower air volume can be controlled respectively through valves, which can be fine tuned; The upper and lower air chambers share the heating body

11

Exhaust volume control of each section

Independent control and fine adjustment through mechanical valve

12

Air nozzle structure

The blowing direction of the first four sections is 30 degrees from the horizontal, and the air nozzle groove is slotted with a special mold. The last five sections are adjustable air nozzle hooks.

13

Fan control

AC contactor control

14

Heating control

Solid state relay

15

Fan material

National standard SUS304 stainless steel

16

Solvent recovery system

No, only assist in the installation of interfaces

17

NMP solvent concentration alarm

Provide installation interface. (to be quoted separately)

18

Air chamber pressure monitoring

None (this function needs to be quoted separately)

19

Exhaust air volume

35000 m3 / h max

No.

Project

technical parameter

Notes

1

Marching correction

Installed at the outlet of drying channel, automatic EPC control, swing ± 15 degrees, photoelectric sensor

2

Tension

Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%

Tension partition is realized by pinch roll and traction roll

3

Installation structure mode

Installation of integral vertical plate of CNC machining center (thickness 30mm)

4

Traction roller

160mm steel roller

5

Pinch roll

Ø 120mm rubber roller, surface bread EPDM

6

Drive motor

The traction roller is driven by Siemens Servo motor + precision reducer

No.

Project

technical parameter

Notes

1. 

Installation structure mode

Installation of integral vertical plate of CNC machining center (thickness 30mm)

2. 

tension

Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%

3. 

Rectify deviation

Automatic EPC control, stroke 120mm

4. 

Maximum winding diameter

Ø800

5. 

Winder inflatable shaft

Article 2 (national standard)

6. 

Winding motor

The winding power is driven by Siemens Servo motor + precision reducer

7. 

Max capacity

600Kg

8. 

Roll change mode

Automatic winding and changing function without shutdown

No.

Project

technical parameter

Notes

1

Master control system

Touch screen, PLC, module, servo system

2

Operation mode

Manual, automatic and emergency stop; The whole machine can be operated before and after

The coating line speed, coating setting, head and tail thinning setting, fan frequency and temperature setting can be set, displayed and recorded through the touch screen

3

Setting range of coating and intermittent length

Coating length 20.0 ~ 3200.0mm

4

Alarm condition

Intermittent length: 5.0 ~ 3200.0mm

5

Counting function

When the equipment fails, the touch screen will display the corresponding correction screen

6

Head and tail thickness adjustment method

Production quantity / length

No.

Project

technical parameter

Notes

1

Coating roll (steel roll)

Circular runout ≤ 1.0 um, Ra0.4 straightness ≤ 1.5um

2

Deviation correction

±1mm

3

Aluminum roller

Circular runout ≤ 20um, straightness ≤ 20um

4

Tool adjustment control repetition accuracy

±0.1um

5

Temperature control accuracy

±0.5℃

Item

Sign

Parameters (30m/min)

A (trailing)

≤ 1mm (related to slurry viscosity and binder characteristics)

B (abnormal head area)

5mm

C (tail abnormal area)

6mm

D (edge effect area)

≤3mm； Thickness -10 um

E (length error)

±0.5mm

F (width error)

±0.5mm

M (width error)

±0.5mm

G1 (head thickness)

-5~+5um

G2 (tail thickness)

-5~+5um

H (blank error)

±0.5mm

I (positive and negative alignment error)

±0.5mm

J single surface density (remove areas B, C and D)

Within 1.2%

Length range

L1 (film length)

20.0～3200.0mm

L2 (intermittent length)

5.0～3200.0mm

L1 /l2 (coating + intermittent length)

L1 +L2 ≥120mm

No.

Inspection items

Inspection standard

Inspection method

1. 

Device configuration parameters

Overall dimension of equipment: L (56000mm) *W(4000mm) *H (4000mm)

Tape measure

Oven length: (4m/ section) × 4) + (4m/ section × 6 sections) =40m

ruler

Maximum winding diameter of winding and unwinding: φ 600mm

ruler

Roll width: 750mm

2. 

Integrity of equipment function composition

Unwinding part (manual roll change function, tension, deviation correction, inflatable shaft)

Visually check the technical agreement and equipment configuration table

Coating part (base, coating roller, feeding system, domestic manest die)

Oven (circulator, heating system, external auxiliary air duct)

Traction part (travel deviation correction, traction tension, traction roller assembly)

Winding part (manual roll change function, tension, deviation correction, inflatable shaft)

Control system (electrical cabinet, internal wiring, external trunking wiring)

Delivery parts (according to the content of the technical agreement)

3. 

Brand confirmation of standard parts

100% according to the brand of purchased parts specified in the technical agreement

4. 

Safety standards

Mechanical and electrical interlocking, self-locking function, induction protection function;

Visual inspection and operation

Alarm bell prompt in each area before equipment startup;

Operation

Safety warning signs shall be set at dangerous parts such as movement, compression, cut-off and heat source;

visual

Emergency stop switch button, safety rope in internal maintenance area (at least 3 places);

visual

Protective covers for transmission and moving parts;

visual

Oven overtemperature alarm and power-off protection function

operation

5. 

Mechanical accuracy test

Coating roll circular runout ≤ 1.0 μ m； Straightness ≤ 1.5 μ m； Surface roughness Ra0.4,

Dial indicator, special inspection tool

Over roll circular runout ≤ 20 μ m； Surface roughness Ra0.2

Dial indicator

Parallelism of roller passing ≤ 0.1mm (except for roller passing of oven)

Dial indicator, special inspection tool

6. 

Empty belt operation

(operate the base material continuously at a speed of 40m/min for about 500m)

1m/min→10m/min→30m/min Sectional sampling

Tachometer

No wrinkling in the whole area and no scratch on the surface of the substrate

visual

All moving parts operate smoothly without abnormal noise; The transmission belt is free of deviation and wear;

visual

Temperature setting of each section of the oven: normal temperature ~ 150 ℃

Operation and visual inspection

The winding, unwinding and traction deviation correction run smoothly without continuous shaking

Operation and visual inspection

Except for deviation correction and oven, the deviation of the base material of each roller is ≤± 1mm; Deviation of coating roll substrate ≤ 0.5mm

calipers

Tension setting value 5 ~ 300N

Operation and visual inspection

When starting and stopping, the tension fluctuation is ± 5N; Tension fluctuation ± 1n during normal operation;

Operation and visual inspection

7. 

Coating inspection

30m/min coating operation 1200m)

The coating speed is 30m/min, and the coating method can realize continuous and intermittent coating

Parameter setting

The feeding system and pipeline are well sealed without material leakage

visual

The appearance of the coated surface is good, without particles, scratches, exposed foil and poor bulge edge

visual

Density accuracy of one side: weight error ≤± 1.2% (excluding the range of 8mm at the edge)

Micrometer electronic scale

Density accuracy of double-sided surface: weight error ≤± 1.5% (excluding the range of 8mm at the edge)

Micrometer electronic scale

Tailing ≤ 1mm (related to slurry viscosity and binder characteristics)

ruler

Head abnormal area ≤ 8mm

Ruler, micrometer

Tail abnormal area ≤ 6mm

Ruler, micrometer

Edge effect area ≤ 3mm, -10 ~ +5um (slurry viscosity change less than ± 300cps)

Ruler, micrometer

Length error /h blank error: ≤± 0.5mm

ruler

Width error: ≤± 0.5mm

ruler

Thickness of head and tail: -5 ~ +5um

Micrometer

Positive and negative horizontal alignment error: ≤± 0.5mm

Needle, ruler

Longitudinal alignment error of front and back sides: ≤± 0.5mm

Needle, ruler

Temperature control accuracy of single section oven: ≤± 1 ℃

visual

In the horizontal area 10mm above the substrate, the temperature deviation of each point of a single section oven: ≤± 3 ℃

thermodetector

Dryness test, solvent residue: ≤ 1% (constant temperature and humidity space sampling measurement)

Micrometer electronic scale

Equipment utilization rate: ≥ 97% (formal acceptance project)

Operation and test

Product qualification rate: ≥ 98% (formal acceptance project)

Operation and test