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        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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