SAE AMS 3025E-2018 Polyalkylene Glycol Heat Treat Quenchant.pdf

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1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there

2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2018 SAE International All rights reserved. No part of this p

3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497

4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AMS3025E AEROSPACE MATERIAL SPECIFICATION AMS3025 REV. E Issued 1980-04 Revised 2018-01 Superse

5、ding AMS3025D Polyalkylene Glycol Heat Treat Quenchant RATIONALE AMS3205E results from a limited scope ballot to revise Viscosity (Table 1). 1. SCOPE 1.1 Form This specification covers two types of polyalkylene glycol in the form of a liquid. 1.2 Application This product has been used typically as a

6、 quenching medium for solution heat treatment of aluminum alloys to minimize distortion and reduce residual stresses. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, t

7、his specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel invo

8、lved. 1.4 Classification Quenchants covered by this specification are classified as: Type 1 - Single Polymer Type 2 - Multiple Polymer 1.4.1 The type supplied shall be as specified on the purchase order. SAE INTERNATIONAL AMS3025E Page 2 of 9 2. APPLICABLE DOCUMENTS The issue of the following docume

9、nts in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document h

10、as been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2770 Heat Treatment of Wroug

11、ht Aluminum Alloy Parts AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP1917 Clarification of Terms Used in Aerospace Metals Specifications 2.2 ANSI Accredited Publications Copies of these documents are available online at http:/webstore.ansi.org/. ANSI H35.2 Dimensional Tolerances for Alu

12、minum Mill Products ANSI H 35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) ANSI Z400.1 Material Safety Data Sheets Preparation 2.3 ASME Publications Available from ASME, P.O. Box 2900, 22 Law Drive, Fairfield, NJ 07007-2900, Tel: 800-843-2763 (U.S./Canada), 001-800-843-2763 (Mexico)

13、, 973-882-1170 (outside North America), www.asme.org. ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay) 2.4 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B557 Tension

14、Testing Wrought and Cast Aluminum and Magnesium Alloy Products ASTM B557M Tension Testing Wrought and Cast Aluminum and Magnesium Alloy Products (Metric) ASTM D445 Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity) ASTM D1218 Refractive Index and Refractive

15、Dispersion of Hydrocarbon Liquids ASTM D1298 Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method ASTM D4057 Manual Sampling of Petroleum and Petroleum Products ASTM D6200 Determination of Cooling Characteristics of Quench Oils by Cooling Cu

16、rve Analysis SAE INTERNATIONAL AMS3025E Page 3 of 9 ASTM D6482 Determination of Cooling Characteristics of Aqueous Polymer Quenchants by Cooling Curve Analysis with Agitation (Tensi Method) ASTM D6549 Determination of Cooling Characteristics of Aqueous Polymer Quenchants by Cooling Curve Analysis wi

17、th Agitation (Drayton Unit) ASTM D6666 Evaluation of Aqueous Polymer Quenchants ASTM E203 Water Using Volumetric Karl Fischer Titration 3. TECHNICAL REQUIREMENTS 3.1 Material Shall be polyalkylene glycol and shall meet the requirements of 3.2 and 3.3. 3.2 Properties Quenchant shall conform to the fo

18、llowing requirements; tests shall be performed in accordance with specified test methods on quenchant supplied both in concentrated form and at the dilution specified in Table 1. Table 1 - Properties Paragraph/Test Value Test Method 3.2.1 Condition: As-received in concentrated form: 3.2.1.1 Water Co

19、ntent (Chemically Combined, By Weight) ASTM E203 Type 1 45-48% Type 2 57-63% 3.2.1.2 Specific Gravity ASTM D1298 Type 1 1.094 0.005 Type 2 1.080 0.025 3.2.1.3 Refractive Index at 68 F (20 C) ASTM D1218 Type 1 1.4140 0.0050 Type 2 1.3910 0.0050 3.2.1.4 Viscosity at 104 F (40 C) ASTM D445 Type 1 520 c

20、St 70 cSt Type 2 280 cSt 40 cSt 3.2.2 Condition: Diluted to 20% 0.50% by Volume, with Water 3.2.2.1 Viscosity at 104 F (40 C) 4.4.1.1 Type 1 5.1 cSt 0.5 cSt Type 2 4.2 cSt 0.5 cSt 3.2.2.2 Separation Temperature 4.4.1.2 Type 1 165 F 5 F (74 C 3 C) Type 2 165 F 5 F (74 C 3 C) SAE INTERNATIONAL AMS3025

21、E Page 4 of 9 3.3 Quenching Capability The minimum tests for qualification shall be those specified in Table 2. Table 2 - Required preproduction tests Panel Alloy Panel Form Panel Dimensions (1) Inches (mm) Panel Final Temper Cooling Rate Tensile and Yield Strength Intergranular Corrosion Resistance

22、 2024 Bare Sheet 0.063 1 3 (1.60 25 76) T42 - - Yes 7075 Bare Sheet 0.063 1 3 (1.60 25 76) W Yes - - 7075 Plate 0.250 6 9 (6.35 152 229) T62 Yes Yes - 7075 Forging (2) 1.000 5 4 (25.40 127 102) T6 Yes Yes - 7075 Forging (2) 2.000 8 7 (50.80 203 178) T73 - Yes - NOTES: (1) Width and length dimensions

23、 are minimums and apply to tensile tests only. Width and length dimensions for cooling rate panels shall be four times the thickness. Tolerance on width and length are 1/8 inch (3.2 mm). Tolerances on thickness of sheet and plate shall be as specified in ANSI H35.2 or ANSI H35.2M. (2) Plate may be u

24、sed to simulate forgings (see 4.4.3.1). 3.3.1 Cooling Rates The cooling rates from 750 to 550 F (399 to 288 C), measured in accordance with 4.4.2, shall be specified in Table 3. Table 3 - Cooling rate Nominal Thickness Inch Nominal Thickness Millimeters Cooling Rate Degrees/Second F Cooling Rate Deg

25、rees/Second C 0.063 1.60 900 to 1800 482 to 982 0.250 6.35 240 to 360 116 to 182 1.000 25.40 50 to 75 10 to 24 3.3.2 Tensile Strength The longitudinal tensile and yield strengths of panels heat treated with a glycol quench shall be equivalent to those of identical panels quenched in water, determine

26、d in accordance with 4.4.3. 3.3.2.1 The strengths shall be judged equivalent if the average of all results from glycol-quenched panels is within 2000 psi (13.8 MPa) of those of water-quenched panels, providing that the averages for a single test lot do not differ by more than 3000 psi (20.7 MPa). 3.

27、3.3 Intergranular Corrosion Resistance Panels of 2024 aluminum alloy as in Table 2, solution heat treated with a glycol quench, shall not exhibit intergranular corrosion more severe than that of identical panels quenched in water, determined in accordance with 4.4.4. 3.4 Quality The quenchant shall

28、be homogeneous and free from contamination. The constituents in the quenchant shall not adversely affect its use as a low-distortion quenchant or the alloy being quenched. SAE INTERNATIONAL AMS3025E Page 5 of 9 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the que

29、nchant shall supply all samples for producers tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the quenchant conforms to specified requirements. 4.2 Classification

30、of Tests 4.2.1 Preproduction Tests All technical requirements are preproduction tests. 4.2.2 Acceptance Tests Water content (3.2.1.1), specific gravity (3.2.1.2), and refractive index (3.2.1.3) as-received, and for viscosity (3.2.2.1) and separation temperature (3.2.2.2) of a 20% dilution are accept

31、ance tests and shall be performed on each lot. 4.3 Requirements for Testing 4.3.1 Preproduction tests shall be conducted by the producer on the quenchant to qualify the quenchant to this specification prior to the first production lot. These tests shall be performed prior to or on the initial shipme

32、nt of quenchant to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.3.1.1, and when a purchaser deems confirmatory testing to be required. 4.3.1.1 New preproduction tests shall be required if the producer finds it necessary to make any change in polymer type or

33、 polymer molecular weight, in type of equipment for processing, or in manufacturing procedures. Changes in additive packages to satisfy regulations (Federal, State or Local), do not require new preproduction tests, as long as the quenching characteristics are not changed, as measured by cooling curv

34、e measurements performed in accordance with ASTM D6200 and ASTM D6482 or ASTM D6549. 4.3.1.2 Testing in accordance with ASTM D6200 and ASTM D6482 or ASTM D6549 shall be conducted three times, and the averaged results shall be considered identical to the control testing of preproduction material befo

35、re change if the results of testing satisfy the bias and precision of ASTM D6482 or ASTM D6549. 4.3.1.3 Material qualified to previous revisions of this specification shall not require requalification, unless purchaser deems confirmatory testing will be required. 4.4 Sampling and Testing Shall be in

36、 accordance with ASTM D4057; a lot shall be one batch or tank of quenchant offered for delivery at one time. A lot shall not exceed 10000 gallons (37854 L). 4.4.1 Test Methods 4.4.1.1 Viscosity The as-produced quenchant shall be diluted to a concentration of 20% + 0.5% by volume of quenchant, using

37、distilled or deionized water. When diluting to 20% by volume with water, the initial water content (chemically combined with glycol) shall not be considered as a part of the water of dilution. The viscosity of the diluted sample shall be determined at 104 F 1 F (40 C 0.6 C) in accordance with ASTM D

38、445. 4.4.1.2 Separation Temperature Shall be determined by the following procedure: 4.4.1.2.1 Heat not less than a 250 mL portion of a well-mixed representative sample of diluted quenchant in a 25 150 mm Pyrex test tube. SAE INTERNATIONAL AMS3025E Page 6 of 9 4.4.1.2.2 Fit a cork stopper with a 0 to

39、 212 F (-18 to +100 C) thermometer, so that the thermometer bulb is completely immersed in the liquid. The cork stopper should fit snugly in the test tube, but should have a small V-notch on one side to vent the vapor space in the test tube. 4.4.1.2.3 Immerse the test tube in a suitable heating bath

40、 (water or clear oil) so that the liquid in the test tube is below the bath surface. Keep the test tube away from the sides and bottom of the heating bath. 4.4.1.2.4 Heat the bath slowly (about 5 F (3 C) minute) with a suitable heater and closely observe the sample in the test tube. Continue heating

41、, (but higher than 175 F (79 C) until the sample becomes hazy. 4.4.1.2.5 When the sample exhibits some haze, immediately remove the test tube from the bath long enough to swirl the contents. The haze should disappear. Return the test tube to the bath and repeat this procedure until a permanent haze

42、persists throughout the sample. Immediately observe the sample temperature. 4.4.1.2.6 Cool the sample slightly with agitation until the solution is again clear. Re-immerse in the heating bath and repeat the previous step until the haze persists again. Re-observe the sample temperature and average wi

43、th the first temperature observation. 4.4.1.2.7 The two readings should differ by no more than 2 F (1 C). If the readings differ by more than 2 F (1 C), repeat the entire process with three test temperature observations until all three observations are within 2 F (1 C). 4.4.2 Cooling Rates Shall be

44、determined by quenching the panels specified in Table 2. 4.4.2.1 For the 0.250 inch (6.35 mm) and 1.0 inch (25 mm) thick panels, an electrically insulated chromel-alumel thermocouple, not larger than 24 gauge (0.533 mm), shall be inserted in a blind hole to the mid-thickness 0.020 inch (0.51 mm) at

45、the geometric center. The thermocouple shall be inserted in a manner that ensures intimate contact with the panel for optimum thermal transfer and shall be sealed to prevent intrusion of moisture and quenchant. Before each test, thermocouple contact with the part shall be verified with electrical re

46、sistance tests. A second thermocouple of the same size shall be positioned on the outside surface to determine the instant the specimen enters the quenchant. Panels shall have a surface finish of 32 to 63 microinches (0.8 to 1.6 micrometers) Ra determined in accordance with ASME B46.1 and shall be c

47、hemically deoxidized prior to heating. 4.4.2.2 The 0.063 inch (1.60 mm) thick panel shall only have a thermocouple attached to the surface at the center. 4.4.2.3 The panels shall be soaked at the solution heat treating temperature specified in AMS2770 and quenched in the glycol/water solution mainta

48、ined at 85 to 90 F (29 to 32 C). The glycol concentration used shall be the maximum specified in AMS2770 for the alloy/form/thickness. The tolerance on the glycol concentration shall be +0, 1%. The quench tank shall have no agitation. 4.4.2.4 The time/temperature cooling curve shall be recorded usin

49、g a high speed oscillographic recorder or a computer based data acquisition system. The temperature recording instrument shall be calibrated prior to testing using a temperature source traceable to National Institute of Standards and Technology (NIST) standards. The quench delay shall be recorded. The cooling rate betw