Quanlity control

Quantity Control Plan

Quality Control Plan

Date Originated:

■Prototype RPre-Launch □Production

Control Plan No.:

Part Name/Description: Hydraulic Rubber Hose Assembly

Customer Approval Date:

Supplier Approval Date:

Supplier:Hangzhou Haikuo

Approved by:

Prepared by:

Item

Operation/Description

Machine, Device, Tools

Characteristic

Methods

Reaction Plan

 

Process

Product/process

Evaluation/Measurement

sample

Control Method

Specification/Tolerance

size

Freq.

1

Incoming Material Inspction

 

Appearance

No damage, pollution, moisture

Visual

once

per lot

Inspector sampling and checking the warranty book

Reject,segregate and notify the purchasing department

composition

Subject to the warranty

Visual

2

Rubber raw material storage

Pallet/forklift

Identification

Clarity

Visual

100%

per lot

Warehouse clerk self-inspection

Rework,adjustment

environment

Ventilation, drying, avoid direct sunlight

Visual

3

Ingredient

Electronic scales

 

Recipe sheet

control by computer

100%

continuous

Computer error prevention system

 

Adjust,inform the production department

Weighing

Rubber refining plan

Digital display, voice prompts

4

Rubber mixing

Mixing machine

Temperature

specification

Computer program setting

100%

continuous

Computer error prevention system

Weight

Recipe sheet

Time

Rubber refining plan

making rubber sheet

rubber sheet making machine

Times

Process work instructions

Visual

worker self-inspection

gap

Dial

5

Rubber sheet inspection

Physical properties

Hardness

 

Hardness Tester

once

per lot

Inspector spot-check

Tensile Strength

Rubber tensile Machine

Elongation rate

6

inner tube extrusion

Extrusion Machine

Appearance

No damage, oil, bubble

Visual

100%

per lot

worker self-inspection

Rework, adjust,inform the production department

size

5/8" (φ15.8mm ±0.5mm)

caliper

7

Steel Wire braid

Brading Machine

Appearance

No braid missing,

Visual

100%

per lot

8

outer tube extrusion

Extrusion Machine

Appearance

No damage, oil, bubble

Visual

100%

per lot

size

φ23.8 mm ±0.5mm

caliper

100%

per lot

9

Printing

Print machine

Appearance

clear and error-free

Visual

100%

per lot

10

rap the cloth

Cloth wrapping machine

Appearance

clear and error-free

Visual

100%

per lot

11

coil hose

Coil rack

 

keep clean

Visual

100%

per lot

12

vulcanize

vulcanizer

Time

Standard request

 

100%

per lot

13

Take off wrapped cloth

Unwrapping machine

 

 

 

100%

per lot

14

core-pulling

Water press machine

High pressure

Core- pilling out

 

100%

per lot

15

Pressure test

Pressure machine

2 times than W.P

No damage, no leakage

 

100%

per lot

16

cutting

cutting machine

Appearance

Edge smooth

Visual

100%

per lot

Rework, adjust

size

≥8' (2.44m)

tapeline

100%

per lot

17

crimping connectors

crimping machine

Appearance

no gap, crack, leaking

Visual

100%

per lot

size

crimping standard

caliper

100%

per lot

18

Final Inspection

 

size

Finished product inspection work instructions

Caliper/Tapeline

100%

per lot

Inspector spot-check

Rejection, segregation, notification of quality department

Appearance

Visual

19

 

Burst pressure

Pressure machine

4 times than B.P

sample

per lot

20

Packing

packing machine

packing qty

product packing list

Visual

once

per lot

packing worker self-inspection

Isolation, rework

method

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