1、1. SCOPE 1.1 ScoDe, Thi Y Beneficial comments (recomendations, additions, deletions) and any pertinent: data which may be of use in improving this document should be addressed to: Center, ATTN: STRBE-TSE, Fort: Belvoir, VA 22060-5606 by using the self-addressed Standardization Pocument Improvement P
2、roposal (DD Form 1426) appearing at the end of this document or by letter. US Balvoir Research Development and Engineering specific styles of aluminum plates and MIL-L-40064E 20 February 1986 SUPERSEDING MIL-L-40064D 18 April 1977 c MILITARY SPEC IF I CATION LOADING PLATES, STEEL, AND ALUMINUM This
3、specification is approved for use by all Departments and Agencies of the Department of Defense. L+ n cover three types f loading pl c: tes, thre pound load capacity. These loading plates will be used for bridging gaps and compensating for height differentials between docks and trucks, docks and rail
4、cars, and railcars and railcars. two styles of steel plates rated at a 15,000 1.2 Classification, Loading plates shall be of the following types and styles as specified (see 6.2): Type I - Rectangular Style A Aluminum Style B Steel - =. -.- Obtained From =+E BLOBAL ENGINEERING DOCUMENTS i_ G ZMH McG
5、s Ave., Imne, CA 92711 - - c_- 5- (714) 261-1455 OW) 654-7179 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-400b4E 37 m 7777706 OY2454b T _- MIL -L-400 64E Type If - Flared Sides ., . Style A Aluminum Style B Steel Type III - Combination Load
6、ing Plate and Ramp Style A Aluminum 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS
7、) specified in the solicitation, form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL QQ-A-20018 QQ-A-22518 QQ-A-250111 MILITARY MIL-T-704 MIL-P-15024 MIL-G-20241 MIL-W-22248 MIL-S-81733 STANDARDS FEDERAL i Ji * - Aluminum Alloy Bar, Rod, Shapes, Tube and Wire, Ex
8、truded, 6061. - Aluminum Alloy Bar, Rod Wire and Special Shapes; Rolled, Drawn, or Cold Finished 6061. - Aluminum Alloy 6061, Plate and Sheet. P - Treatment and Painting of Materiel. - Plates, Tags and Bands For Identifi- cation of Equipment. - Gasket Material, Wool Felt, impregnated, Adhesive, Pres
9、sure-Sensitive, - Weldments, Aluminum and Aluminum Alloy. - Sealing and Coating Compound, Corrosion Inhibit ive. FED-STD-595 - Colors. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-53 MIL-L-400b4E 37 = 777770b 0424547 I m t MIL-L-40064E MILITARY
10、. MIL-STD-105 - Sampling Procedures and Tables for MIL-STD-129 MIL-STD-130 . - Identification Marking of US Military Property. MIL-STD-889 - Dissimilar Metals. MIL-STD-1303 MIL-STD2 175 Inspection by Attributes. - Marking for Shipment and Storage. - Painting of Naval Ordnance Equipment. - Castings,
11、Classification and Inspection of. fCapies of specifications and standards required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.1.2 Other Government publications. The following other Go
12、vernment publications form a part of this specification to the extent specified herein. DEPARTMENT QF LABOR, OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) 29 CFR, Chapter XVIL, Part 1910, Occupational Safety and Health Standards. (Application for copies should be addressed to the Superintende
13、nt of Documents, Government Printing Office, Washington, DC 20402.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if appl
14、icable. The issues of the documents AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B 632 - Aluminum-Alloy Rolled Tread Plate, Standard Specification for. D 3951 - Standard Practice for Commercial Packaging. (Application for copies should be addressed to the American Society for Testing and Materi
15、als, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN WELDING SOCIETY (AWS) AWS B2.1 - Standard for Welding Procedure and Performance Qualification. (Application for copies should be addressed to the American Welding Society, 2501 N.W. 7th Street, Miami, FL 33125.) 3 Provided by IHSNot for Resale
16、No reproduction or networking permitted without license from IHS-,-,-MIL-L-400b4E 39 7777906 04245q 3 k - * MIL-L-40064E (Industry association specificationsand-standards are generally available a for reference from libraries. groups and using Federal agencies.) They are also distributed among techn
17、ical 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specifi- cation shall take precedence. 3. REQUIREMENTS , 3.1 Description. The loading plates shall be rectangular, flared side, or combination loading pla
18、te and ramp type and of aluminum or steel as specified (see 1.2). The plates shall be of welded construction. Aluminum loading plates shall be equipped with hand grips (see 3.4.3). Steel load- ing plates and when specified (see 3.4.2), aluminum loading plates shall be equipped with lifting devices f
19、or handling by forklift truck to position the loading plates. Loading plates shall permit safe and efficient use of fork- lift trucks for loading and unloading operations. Load plate shall include commercial item designated as dock board. 3.2 First article. When specified (see 6.2), a sample shall b
20、e subjected * to first: article inspection (see 4.3 and 6.3). 3.3 Material. Material shall be as specified herein. Materials not 6 specified shail be selected by the contractor and shall be subject to all provisions of this specification. Material for aluminum safety curbing, shall be in accordance
21、with QQ-A-200/8 or QQ-A-250/11. Material for the underside structural members, shall be in accordance with QQ-A-225/8 or QQ-A-200/8. 3.3.1 Material deterioration and control. The loading plates shall be fabricated from compatible materials, inherently corrosion and deterioration resistant or treated
22、 to provide protection against the various forms of corrosion and deterioration that may be encountered in any of the applicable storage and operating environment to which the item may be exposed. 3.3.1.1 Dissimilar metals. Dissimilar metals, as defined in MIL-STD-889, Insulation may be provided by
23、an insulating barrier such shall be electrically insulated from one another to minimize or prevent galvanic corrosion. as a corrosion inhibiting sealant conforming to MIL-S-81733 or chromate tape conforming to MIL-G-20241. Protection against any galvanic corrosion could also be obtained by exclusion
24、 of the electrolyte if feasible, 3.3.1.2 Identification of materials and finishes. The contractor shall identify the specific material, material finish or treatment for use with components and sub-components, and shall make information available, upon request, to the contracting officer or designate
25、d representative. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-400b4E 37 U 777770b 0424547 5 U MIL-L-40064E 3.3.2 Recovered materials. For .the-purpose of this requirement, re- covered materials are those materials which have been collecte
26、d from solid waste and reprocessed to become a source of raw materials, as distinguished from virgin raw materials. The components, pieces and parts incorporated in the loading-plates may be newly fabricated from recovered materials to the maximum extent practicable, provided the loading plates prod
27、uced meets all other requirements of thIs specification. Used, rebuilt or remanufactured components, pieces and parts shall not be incorporated in the loading plates. 3.3,3 Castings. Castings provided on all style A loading plates shall be at least of the quality normally used in commercial practice
28、, free from injurious blowholes, porosity, shrinkage, cracks, or other defects. The use of repaired castings in which the repairs could adversely affect the strength of the casthgs shall- not be permitted, Castings shall be in accordance with MIL-STD-2275, class 3. 3.4 Dessgn and construction. Loadi
29、ng plates shall be of welded construct- ion, except for the retaining and lifting devices (chains with recessed hook?, and lock-stops), which may be secured by other means. 3;4.1. Strucrural design. Loading plates shall be designed with a safety factor of 200 percent ofrated load capacity based on y
30、ield strength of the material. The underside structural members shall extend to at least 7.50 inches below the floor plate to insure positive blocking between door of truck or railcar and dock edge. The combination loading plate and ramp shall be designed such that the two units shall lock together
31、with locking pins, to form one unit. The locking pin position shall be protected by safety curbing. Ramplocks shall be provided to stabilize the loading plate. be of adjustable type and shall be attached to the ramp section of type 111 loading: plates, Ramplocks shall 3.4.2 Lifting devices. Style B
32、loading plates shall have lifting devices so that the loading plates may be transported and positioned by a forklift truck having forks 36 inches long, 6 inches wide and located on 24 inch centers. The style A loading plates shall, when specified (see 6.21, have lifting loops with dimensions not les
33、s than 7 inches wide and 3 inches high on 26 inch centers. .The loops shall drop by gravity flush with the floor plate when not in use. Lifthg loops are to be removable for maintenance. Removal of loops shall be accomplished with simple hand tools. 3 hand each .4.3 Hand grip. Style A loading plates
34、shall be equipped with continuous gripa located along each side or with four hand grips, two located within of the side curbs on the outside, near the ends. Hand grip holes are to be a mintmum of 5 inches long X-2.50 inches wide and 2 inches deep. grips shall be free of sharp edges and sealed to pre
35、vent accumulation of moisture within the side curbs. Hand 5- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-L-40064E 37 W 7799706 Oq24550 L M, c P MIL-L-40064E 3.4.4 Safety curbing. Loading plates shall have safety curbing along the o full leng
36、th of each side to prevent forklift trucks from going over the sides. The curbing shall have all edges and corners rounded. Side curbs shall have flared ends permitting sharp angle entry and exit. curved outward and downward. Side curb height shall be a minimum of 2 inches above the loading plate to
37、p floor surface, and shall be designed to minimize wheel rim/curb contacts. The width of the side curbs at the base shall not reduce the usable width of the loading plate by more than 6 inches. The side curbs shall be painted a yellow in accordance with system 76 of MIL-STD-1303, color yellow gloss
38、No. 13538 of FED-STD-595. The curb ends shall be 3.4.5 Floor surface. The floor surface shall have a diamond-pattern, skid- resistant tread pattern. Both ends of the loading plate floor surface shall be beveled along the entire width to provide smooth entry of the forklift truck. Edge thickness shal
39、l be 0.25 inch maximum and 0.18 inch minimum. Style A loading plates shall have floors in accordance with ASTM B632, alloy 6061-T6, except that the thickness shall be 0.625 inch minimum, not including the thickness of raised pattern. 3.4.6 Position lockstop. Types I and III loading plates shall be p
40、rovided with a fixed position lockstop located on the underside of the floor surface. The position lockstop shall act as a positive stop in both directions under conditions of O to plus 6 inches height differential between the loading plat- form end and the truck end. The lockstop shall allow truck
41、park-out within 2 inches. a 3.4.7 Retaining devices, type II. Type II loading plates shall be provided with a fixed position lockstop and an adjustable retaining device. retaining device shall be adjustable in 2 inch increments in a range between 10 inches and 42 inches. positive stop in both direct
42、ions under conditions of O to plus 6 inches height differential between the loading platform end and the railcar end. The The lockstop and retaining device shall act as a 3.5 Performance. 3.5.1 Load capacity. The loading plates shall have stable operation at a rated load of 15,000 pounds. The loadin
43、g plates shall show no permanent deformation or failure when subjected to a test load of 200 percent of axle load capacity when tested as specified in 4.5.2.2. 3.5.2 Safe operation. The loading plates shall meet or exceed current OSHA requirements. 3.6 Dimensions. Unless otherwise specified (see 6,2
44、), loading plates shall conform to the overall dimensions specified in table I. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-x Width at platform end (overall) Width at railcar or truck end (overall Length (overall) MIL-L-400b4E 37 777770b OL1245
45、5L 3 Type 1 Type II Type III (inches) (inches) (inches) 64 96 64 64 70 64 44 48 44 ? MIL-L-40064E TABLE I. Dimensions. Note: A tolerance of plus or minus 1 inch shall be allowed on the above dimensions. 3.7 a Each loading plate shall be marked in accor- dance with MIL-STD-130. conforming to MIL-P-15
46、024, type A. protected location. The following information shall be pe-ianently marked, as applicable, on the name plate in characters not less than 0.375 inches: . Each loading plate shall have an identification plate The plate will be securely attached in a Loading Plate MIL-L-40064, Type Company
47、Name Capacity : pounds Sty le - 3.8 Treatment and painting. The style B loading plates shall be cleaned, treated, and painted in accordance with MIL-T-704, type A, color No. 13538 of FED-STD-595. Style A loading plates shall be cleaned only. 3.9 Workmanship. All loading plates shall be clean and pro
48、perly assembled. Burrs shall be removed and sharp edges shall be rounded; Parts shall not be damaged or impaired in any way, and parts shall show no evidence 05 rust or corrosion. 3.9.1 Welding. All surfaces of parts to be welded shall be free from . rust, scale, paint, grease, and other foreign mat
49、ter. Parent materials, weld Eller metals, and fabrication techniques shall be as required to enable the loading plate to conform to the examination and test requirements specified in section 4. Parts to be joined by welds shall be brought into as close contact: as possible and in no event shall be separated by more than 0.18 inch unless appropriate bridging techniques are used. used in fabrication shall be at the option of the contractor.
