• 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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