iYlItu LIV I Material Processing Procedure Approval Dept . Date MPPRA0110-018-12 Prepared B y David Uhl Mf . , ~ rM . Ub1 _ r_/ir/y Title : General Cleaning of Haynes Stellite 21 ELV Revision "New " Date 07/01/98 Q .A . 1 Turbine Blades . MPP Eff . o n RA0110-018 Rev T" M / 0 Z4Lc Sf3 1 .0 SCOP E This Material Processing Procedure (MPP) details a cleaning method utilizing Aqueous Degrease (RB0210-029) and Alkaline Clean (RBO210-006) for ELV turbine blades made of Haynes Stellite 21 . 1 .1 This MPP applies only to Haynes Stellite 21 ELV turbine blades . 2 . 0 2 .1 Note : Use of this MPP on parts or alloys other than those listed above shall require prior approval of Materials Application (MA) . This process should be continuous without interruptions or stoppage between cleaning procedures . APPLICABLE DOCUMENTS AND MATERIALS Document s RA0110-018 Cleaning and Passivating of Corrosion and Heat Resistant Alloys, Nickel and Nickel Base alloys and Cobalt Base Alloy s RB0210-006 Rust Remover, Alkaline RB0210-029 Cleaner, Aqueous Degreasing MIL-P-27401 Propellant Pressurizing Agent, Nitroge n 2 .2 Materials W E LEASED DOCUMENT (a) Turco 4181 conforming to RB0210-006 Type I, Turco Products Divisio n (b) Turco 3878 LF-NC conforming to RB0210-029, Turco Products Division (c) Tap water at 150 ± 30 degrees F . (d) Deionized water, specific resistance of 50,000 ohm-cm minimum, pH from 5 .5 to 8 .0 . (e) Cotton glove s (f) Teflon coated wire frame compartmented basket (g) GN2 per MIL-P-27401 1 E BNA0636868 9 HDMSe00258441
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iYlItu LIVIMaterial Processing Procedure Approval Dept . Date
MPPRA0110-018-12Prepared ByDavid Uhl
Mf ., ~ rM. Ub1 _ r_/ir/y
Title : General Cleaning ofHaynes Stellite 21 ELV
Revision "New "Date 07/01/98
Q.A .1
Turbine Blades . MPP Eff . onRA0110-018 Rev T"
M/0
Z4Lc Sf3
1 .0 SCOPEThis Material Processing Procedure (MPP) details a cleaning method utilizingAqueous Degrease (RB0210-029) and Alkaline Clean (RBO210-006) for ELVturbine blades made of Haynes Stellite 21 .
1 .1 This MPP applies only to Haynes Stellite 21 ELV turbine blades .
2. 0
2.1
Note : Use of this MPP on parts or alloys other than those listed above shallrequire prior approval of Materials Application (MA) . This process shouldbe continuous without interruptions or stoppage between cleaningprocedures .
APPLICABLE DOCUMENTS AND MATERIALS
Documents
RA0110-018 Cleaning and Passivating of Corrosion and HeatResistant Alloys, Nickel and Nickel Base alloys andCobalt Base Alloys
RB0210-006 Rust Remover, Alkaline
RB0210-029 Cleaner, Aqueous Degreasing
MIL-P-27401 Propellant Pressurizing Agent, Nitroge n
2.2 Materials W E LEASEDDOCUMENT
(a) Turco 4181 conforming to RB0210-006 Type I, Turco Products Divisio n
(b) Turco 3878 LF-NC conforming to RB0210-029, Turco Products Division
(c) Tap water at 150 ± 30 degrees F .
(d) Deionized water, specific resistance of 50,000 ohm-cm minimum, pH from 5.5 to 8.0 .
(e) Cotton gloves
(f) Teflon coated wire frame compartmented basket
(g) GN2 per MIL-P-27401
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3.0 REQUIREMENTS AND PROCEDURES
3 .1 General Requirements
Date 07/01/98
3.1 .1 SafeMaterials and processes described in this MPP may be hazardous . Alwaysreview the Material Safety Data Sheet (MSDS) to obtain information concerningsafe usage of hazardous materials . Rocketdyne Safety, Health & EnvironmentalAgency (SHEA) shall be contacted for additional information .
3 .1 .1 .1 Wear chemical resistant gloves , goggles or face shield when handlinghazardous materials .
3.1 .2 TrainingPersonnel working with hazardous materials and processes must be trainedfor the proper procedures and handling of these materials . The training asminimum shall include but is not limited to the following courses .
Hazardous Materials CommunicationsMSDS Familiarizatio nHazardous Waste HandlingPersonal Protective Equipmen t
Employees must have thorough familiarity with the use of equipment, such asshop tools,cranes, industrial vehicles, etc., related to this process . In addition,any related certification and/or training must be current .Handle and package clean parts in a manner to preclude contamination andprotect against damage during transfer and storage .
3.1 .3 Waste Disposal
All used processing materials, chemicals or handwipe materials must be placedin appropriate hazardous waste containers in accordance with an applicableprocedure of RSOP Manual .
Stringent control shall be exercised to prevent any spillage or leakage of allprocessing media into the City Sewage system or Storm Sewer system .Disposal of corrosive materials (such as acids, alkali and rinse water) shall beaccomplished in accordance with applicable procedure of RSOP manual bycontacting the metal treatment plant, or the environmental engineer in charge ofthe plant .
3 .1 .4 Parts cleaned with solvent handwipe shall be dried prior to immersion intoaqueous solutions .
3 .1 .5 Assemblies containing dissimilar alloys and weld joints shall comply with therequirements of paragraph 1 .1 .
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3.1 .6 Parts , which contain recessed areas and /or internal cavities shall be rinsed withdeionized water using pressurized spray gun . All parts shall be completely drainedbetween rinses and prior to d rying .
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3.2 Procedures
3.2 .1 Parts Preparation
3.2 .1 .1 Remove all packaging and protective devices .
Date 07/01/98
3.2 .1 .2 Place blades in compartmented baskets ; one blade per basket compartment .Place all compa rtmented baskets into large-part immersion basket . All bladesshall be cleaned , conditioned , rinsed and dried as a single batch .
3.2 .1 .3 Position baskets and blades to drain quickly and completely .
3.2 .2 Aqueous Degrease
3.2.2.1 Lower hardware slowly into solution . Manipulate to avoid air entrapment .
3.2 .2 .2 Allow hardware to remain in solution for 10 minutes minimum at 140 ± 10 OF (or)15 minutes minimum at 120 ± 5 OF .
3.2.2.3 Remove hardware from solution after completion of the immersion time andmanipulate as required to drain thoroughly .
3.2 .2.4 Rinse in running or agitating tap water at 150 ± 30 OF for 4 minutes minimum .
3.2.2.5 Remove hardware from rinse water and manipulate as required to drain . Do notallow hardware to dry .
3.2 .2.6 Immediately proceed to next step while parts are still wet .
Constituents :
1 . RB0210-029 Aqueous Cleaner 16 .7 to 20% by volume . (140 ± 10 OF (or)120 ± 5 °F . )
2. Rinse tap water (150 ± 30 °F) Agitation required . Deionized water may be substitutedfor tap water.
3.2 .3 Alkaline Conditione r
3.2.3.1 Lower hardware into solution .
3.2.3.2 Manipulate hardware as required to prevent air entrapment .
3.2.3.3 Allow hardware to remain in solution for 2 hours minimum at 195 + 15 OF .
3.2.3.4 Remove hardware from solution .
3.2.3.5 Manipulate hardware as required to drain .
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3.2 .3 .6 Rinse with running tap water at 150 +/- 30 OF for four minutes minimum .
3.2.3.7 Spray rinse the external and internal surfaces of the hardware with deionizedwater at room temperature to 180 degrees F for 4 minutes minimum. Takeextreme care and ensure that all blades are sprayed from top, bottom, and allsides . Rotate baskets as needed. Operator shall visually inspect all blades andcompartments for entrapped alkaline conditioner .
3 .2 .3 .8 Immersion rinse in deionized water at 150 ± 30 °F for four minutes minimum
3.2.3 .9 Remove hardware from deionized water and manipulate to drain completely .
3 .2 .3 .10 Remove compartmented baskets from large part basket .
3 .2 .3.11 Ensure cleaned surfaces are free of scale, rust, iron, salts, flux residue, foreignmetals, moisture and other visible contamination . Iridescent temper films resultingfrom heat treatment or welding are permissible, except for parts subsequentlybrazed .
Constituents :1 . Turco 4181 , RB0210 -006 Type I : 2-4 pounds per gallon of water . Solution
temperature shall be at 195 +/- 15 OF .
2. Rinse tap water 150 ± 30 OF . (Deionized water may be substituted for tapwater. )
3. Deionized water shall have a minimum specific resistance of 50,000 Sicmand a pH of 5 .5 to 8.0 .
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3 .2.3.12 Acidity/Alkalinity Tes tExternal and internal surfaces of the part cleaned per this procedure shall betested for acidity/alkalinity immediately after rinsing while part is still wet .
a. Touch the wet surfaces with a pH indicating paper which can registeracidity and alkalinity values between 6.0 and 8 . 0 range .
b. When the wet surface does not change color of the pH paper, the surfaceis considered clean. Otherwise, repeat rinsing with deionized water untilthe part is clean .
c. Inspection shall verify part cleanliness prior to drying (ref . 3 .2 .3 .13) .
3.2 .3.13 The operator shall use Water- Break test (3 .2 .3 .13), (or) Soiling test (3.2 .3.15 A .),(or) Ultraviolet (black) light (3 .2 .3 .15 B .) to ensure part cleanliness . (Use of WaterBreak test is preferred on wet part and use of Soiling test and Ultraviolet on drypart) .
A . Water Break TestThis test is applicable only where the cleaned surface is accessible andclearly visible .
1 . Pour small quantity of fresh deionized water over the cleanedsurface .
2. The water should form an unbroken (uniform) film on the metalsurface, this indicates part is clean .
3. If water collects into a series of droplets within 5 seconds, part shallbe recleaned per this MPP .
4. Inspection shall verify part cleanliness prior to drying (ref . 3 .2 .3 .13) .
3 .2 .3 .14 DryingUse steps "a" or "b " to dry hardware .
a. Blow dry with GN2 or filtered shop air .
b. Dry in an air-circulating oven at 200 +/- 25 degrees F for 50 +/- 10 minutes .
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3.2 .3 .15 Cleanliness Verification of Dry HardwarePerform the test specified in steps 3 .2 .3 .12A or use one of the following tests onthe dry hardware .
A . Soiling Test
1 . Use a clean, dry, lint-free white cloth to lightly wipe the cleanedsurface .
2. Visually examine the cloth for deposits .
3. If no deposit or contamination is evident, part is clean .
4. If deposit or contamination is visible, part shall be recleaned per thisprocedure.
5. Inspection shall verify pa rt cleanliness .
B . Ultraviolet (Black) LightThis test is helpful for detection of contaminants such as oils and greases .
1 . Apply ultraviolet (black) light to the cleaned surfaces. When surfacefluoresces , oils or greases are present and part shall be recleanedper this procedure . Otherwise, part is acceptable .
2. Inspection shall verify part cleanliness .
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4 .0 QUALITY ASSURANCE
Date 07/01/98
This procedure describes the method for acceptance and rejection usingstatistical process control ( SPC) techniques , where applicable . QualityAssurance will monitor the manufacturing process through the use of controlcharts and/or histograms which will be maintained by Manufacturing for all keyproduct/process features . QA may use sampling techniques for lot acceptancewhere approved by Materials Application , Manufacturing , and Quality ProductAcceptance Engineering .
If no SPC is being utilized , then 100% Inspection (by process owner and/orProduct Inspection ) of hardware requirement is necessary .
4 .1 Visual Inspectio nAll finished parts shall have surfaces free of scale , rust, iron , salts, flux residue,foreign metals , moisture and other visible contaminants . Iridescent temper filmsresulting from heat treatment or welding are permissible ; except for partssubsequently brazed .
4 .1 .1 Use of Water Break test , or Soiling test , or Ultraviolet ( black) light, in accordancewith RA0110 - 018 is required to help visual inspection .
4 .1 .2 Requirements
Ensure cleaned parts are free of oils, grease , wax, paint or other contaminantand any loose debris . If parts are not clean , re-clean as necessa ry as describedin this procedure . Control plans will identify the key characteristics for SPCtechniques , where applicable . Surface scratches noted prior to cleaning shallnot be cause for rejection of the cleaning operation .
4.2 Inspection Surveillance
4.2.1 Tank solutions are at working level .
4.2.2 Tank solution concentrations and temperatures are in accordance with therequirements of this MPP .
4.2 .3 The specific resistance of deionized rinse water is 50,000 ohm -cm minimum andhave a pH of 5 . 5 to 8.0.
4.3 Process Monitoring/Surveillance
Quality Assurance will perform random sample inspections of theprocess/product characteristics at a frequency and acceptance level approvedby Manufacturing and Product Acceptance Engineering . QA will periodicallymonitor the manufacturing process , while in progress , in order to detect andcorrect any process deviations that may occur during manufacturing process .
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4.4 Data Collection
Date 07/01/98
SPC data will be collected as required by product/process quality requirements .Data collection will be performed through Rocketdyne's computer based SPCdata collection system or through manual data collection methods .
5 .0 PACKAGIN G
5 .1 Clean parts shall be handled with clean and dry cotton gloves .
5 .2 Allow part( s) to cool to room temperature ( approximate ) before packaging .
5 .3 Refer to MWO/MOR for instructions on packaging .
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NR-A&SO MATERIAL PROCESSING PROCEDURE REVISION RECOR DDIV .
