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1、J I S H*8bb4 98 W 4933608 Oc153708 3 OJIS 7 o o I i UDC 621.793.7:669.148:620.198.001.4 JAPANESE INDUSTRIAL STANDARD Test Methods for Steel Spray Deposits JIS H 8664-1990 Translated and Published by Japanese Standards Association Printed in Japan Copyright Japanese Standards Association Provided by
2、IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S HM8664 90 W 4933608 0053709 5 W In the event of any doubt arising, the original Standard in Japanese is t
3、o be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- UDC 621.793.7:669.148:620.198.001.4
4、JAPANESE INDUSTRIAL STANDARD J I S Test Methods for Steel Spray Deposits H 8664-1990 1. Scope This Japanese Industrial Standard specifies the test methods for the spray-deposited metals, such as carbon steel, low alloy steel, stainless steel and other alloy steels on machine parts and others made fo
5、r the purpose of wearproofing, corrosion-proofing , repair , etc. Remark: The units and numerical values given in in this Standard are based on the International System of Units (SI) and are appended for informative reference. Further , the traditional units with numerical values and the accompanyin
6、g SI units with converted numerical values given in in this Standard shall be replaced by the units and the relevant converted values given in on January 1, 1991. 2. Summary These test methods specified here concern the methods for judging the film conditions of spray deposits. The test items shall
7、be selected and applied according to the shape, size and use of the products sprayed with steel. spray injection. Note that the analytical tests are to be performed for the metals for 3. Test Items The test items shall be as enumerated below. Analysis of materials for spray injection Film thickness
8、test Tension test Adhesion test Surface hardness test Particle bonding test Chemicalproof test Heatproof test Bulk specific gravity test Applicable Standards: See page 12. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Ber
9、nie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*8bb4 98 I 4933608 0053735 3 I 2 H 8664-1990 4. Test Methods 4.1 Analytical Test Methods for Spray-Deposit Materials The tests shall conform to JIS G 0321. 4.2 Film Thickness Test
10、 Method The test shall conform to 4.1, 4.2 or 4.3 in JIS H 8663. 4.3 Tension Test Method The tension test method shall be as follows. (1) Test Piece The shape and size of the test piece and fitting jig shall conform to Fig. 1. The sleeve, mandrel and tapered ring shall be made from cold- finished st
11、eel bar specified in JIS G 3123. The dimensions of sleeve shall be 45 mm in outside diameter and 50 mm in length, and the inner face shall be partially threaded for attaching the tensile jigs. The thread shall be 20 mm in pitch diameter and 2.5 mm in pitch length. Both the inner ends shall be of soc
12、ket and spigot joint and the outer ends shall be finished diagonally by 90 taper. The inner face of the sleeves shall be threaded to fit the tensile jigs, and the outer face shall be coarse-threaded up to 10 mm from the outer end. The coarse thread shall be finished to 1.25 mm in pitch length, and t
13、he root of thread shall be rounded to have a radius of 0.4 mm. be assembled with the mandrel ( 4 12 mm bolt) and a nut. A set of two sleeves and two tapered rings shall The contact surfaces in assembly shall be free from clearance, and the outer surfaces of two sleeves shall form one cylindrical sur
14、face. cleaned, have a blast of molten alumina, and an overall spray- injection under the same conditions as those of product, to the spray, the central part of the sprayed film (about 30 mm in width) shall be polished as the jig is under the assembled state. The whole outer surface of this bar-type
15、specimen shall be Subsequent The polished film thickness shall be 2 mm, as a rule, and the finishing accuracy shall be of finish mark vvvv specified in JIS B 0601, Remark: The molten.alumina shall be of molten alumina 2 A specified in JIS R 6111, and its particle size shall be No. 30 of JIS R 6001.
16、(2) Tension Test Puli out the mandrel and tapered rings, screw the tensile jigs into both ends of the test piece, and set it to a tension tester. The load velocity shall be 1000 kgf/min (9 807 S/min as a rule (Applicable till the end of 1990) (3) Calculation formula. The tensile strength shall be ca
17、lculated from the following (Applicable till the end of 1990) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,
18、-,- P G E =A where, GB : tensile strength (kgf/mm2) N/mm2 P : A: breaking load (kgf) N sectional area of spray deposit film (mm2). Fig. 1. Tension Test Piece and Fixing Jigs Unit: mm Spray deposit film /- ,-Coarse thread (P 1.25) M - 12x120 4.4 Adhesion Test Method The adhesion test method shall be
19、carried out by way of a bond strength test as follows. (1) Test Piece The test piece shall be prepared as described below. Two steel bars (SS 41 bar specified in JIS G 3101140 mm in diameter and 40 mm in length shall be used. A tapped hole for screwing in the tensile jig shall be bored in the center
20、 of end face of each steel bar. The screw threads shall be 10 mm in pitch diameter, 15 mm in depth and 1.5 mm in pitch length. The whole end face without a tapped hole of one steel bar shall be pretreated and sprayed under the same conditions as those of the product. The thickness of spray deposit f
21、ilm shall be O. 5 mm. The end face without a tapped hole of the other steel bar shall be subjected to a blast with molten alumina till it turns into a rough surface. The sprayed face and blasted rough face shall be bonded together with adhesives so that the center lines of the two bars shall aligh i
22、n a straight line, and the outer surfaces shall form a cylindrical surface. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without licen
23、se from IHS -,-,- J I S H*bb4 90 W 4933b08 0053733 7 W 4 H 8664-1990 (2) Operation Attach the tensile jigs to both ends of the test piece, The load velocity shall be and mount them on the tension tester. 1000 kgf/min (9807 N/min) as a rule. (Applicable till the end of 1990) (3) Calculation The bondi
24、ng strength of the spray deposit film shall be calculated from the following formula: (Applicable till the end of 1990) F=- P where, F : bonding strength (kgf/mm2) N/mm2 P : A : tensile breaking load (kgf) N spray deposit area (mm2). Fig. 2. Bonding Strength Test Piece Unit: mm Spray deposit film 0
25、. 5 nun, ,-Adhesive 4.5 Surface Hardness Test Method The surface hardness test is to measure the surface hardness of spray deposit films, and a method of applying a test piece to a Brinell hardness tester is a standard practice, but as an alternative, measurement may be made of the product with a po
26、rtable Shore hardness tester by agreement between the parties concerned with delivery. be equivalent (l) to that of the product and the condition of spray injection shall be identical. The test piece shall be representative of the product; its base metal shall Note ( ) The composition, manufacturing
27、 conditions and finishing conditions before spray of the base metal shall preferably be the same as that of product. However, test pieces of cast or forged metals may be replaced with test pieces of rolled steel. 4.5.1 Method Using Brinell Hardness Tester Measure the surface hardness of spray deposi
28、t film with a Brinell hardness tester, and indicate an arithmetical mean of measurements made at not less than five points in ac- cordance with JIS Z 2243, as appropriate and following the rules described below. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=
29、IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*8664 90 4733608 0053734 7 M 5 H 8664-1990 (1) Film thickness shall be 3 mm, as a rule. (2) Test load shall be 3000 kgf C29420 N) (2, as a
30、rule, and the diameter of steel ball shall be 10 mm (3). Notes ( 2 ) MCS 1 load shall be 1000 kgf (9807 NI. (Applicable till the end of 1990) (3) For the measurement of extremely hard spray deposit films such as MLS 2, it is desirable to use a hard metal ball 10 mm in diameter in place of an ordinar
31、y s tee1 ball. 4.5.2 Method Using Portable Shore Hardness Tester Measure the spray deposit film hardness of product with a portable Shore hardness tester in accordance with JIS Z 2246, as appropriate, and following the rules described below. However, the points to be measured and the number of measu
32、rements shall be predetermined between the parties concerned with delivery. arithmetical mean of measurements shall be taken as the surface hardness. An (1) The test surface of the product shall be a plane (4), as a rule. (2) The hardness tester shall be placed on the test surface per- pendicularly
33、to it. Note (4) When the test surface of product is not a plane, the indication of surface hardness shall be accompanied with the radius of curvature of the curved surface. Example : HS 40 (R =50) 4.6 Particle Bonding Test The particle bonding test method shall be based on the blast impact test meth
34、od. 4.6.1 Blast Impact Test Method (1) Test Piece measuring 60 mm in length, 50 mm in width and 3.2 mm in thickness shall be prepared, and shall be subjected to a spray injection under the same conditions as those of the products to have a deposit of 0.6 to 0.7 mm in thickness uniformly over the who
35、le surface of one side. As a pretreatment, the surface of the base metal shall undergo a blast of molten alumina. A test piece of steel plate specified in JIS G 3101 and (2) Operation electromagnetic board in a blast cabinet with the sprav deposit The spray deposit test piece shall be fixed on an fi
36、lm upw ; . .,; 8 6 VI . . . : . : . : . . . . . . . . . . L 30 4 50 c 8 H 8664-1990 2. It is recommended that a set of two test pieces be prepared, and one of them be reserved as a standard piece for comparison. are as shown in Fig. 5. Its shape, size and structure 3. The temperature, atmosphere and
37、 heating duration shall be predetermined by the parties concerned with delivery. 4. The heating and cooling velocity of the test piece shall be predetermined by the parties concerned with delivery. Fig. 5. Heating Test Piece Unit: mm Spray deposit film /- 4.9 Bulk Specific Gravity Test Method The bu
38、lk specific gravity test shall be based on the water saturation method as described below. (1) Test Piece or an item representative of the product. A test piece shall be a film peeled off from a product The size of test piece shall be predetermined by the parties concerned with delivery. The spray d
39、eposit surface and the back surface of a test piece The test piece shall be free from a remarkable unevenness in shall not be processed. external appearance. (2) Operation (a) Dry mass Dry mass W, (g) shall be the constant mass which the test piece has reached after drying in an air bath kept at 105
40、 to 120oc. (b) Water Saturation Method Immerse the test piece, after taking measurement of dry mass, under water surface (at room temperature) in a beaker, place the beaker in a vacuum desiccator and exhaust the air it contains. Take out the test piece when air bubbles have stopped generating and ta
41、ke it as a water saturated test piece, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S H*8664 90 493
42、3608 0053718 6 9 H 8664-1990 (c) Underwater Mass of Water Saturated Test Piece Measure the water saturated test piece as it is hung in water with a wire not more than 0.5 mm in diameter. The measured mass after a deduction of the wire mass shall be taken as underwater mass LK (g) of the water satura
43、ted test piece. (d) Mass of Water Saturated Test Piece Take out the water saturated test piece from water, quickly wipe waterdrops off the surface with a wet compress, and then measure the mass of the water saturated test piece it; (g). (3) Calculation The bulk specific gravity shall be calculated f
44、rom the following formula: Wl w 3 - w z d= where, d : bulk specific gravity it: : mass in air (g) it; : underwater mass (g) It; : water saturated mass (g) . a a Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
45、 Resale, 03/14/2007 08:21:10 MDTNo reproduction or networking permitted without license from IHS -,-,- , J I S H*abb4 90 m 4933b08 0053719 B m 10 H 8664-1990 Annex The values of tensile load velocity in 4.3 (2) and 4.4 (Z), the values of tensile load in 4.3 (3), 4.4 (3) and 4.5.1 (2), and the values
46、 of air pressure in 4.6.1 (2), all specified in the main text of this Standard and all based on the traditional units shall be converted, on January 1, 1991, to the numerical values in the SI units as listed below. 4.3 Tension Test Method (2) Tension Test Pull out the mandrel and tapered rings, scre
47、w the tensile jigs into both ends of the test piece, and set it to a tension tester. The load velocity shall be 10000 N/min. (Applicable on and after January 1, 1991) (3) Calculation The tensile strength shall be calculated from the following formula: (Applciable on and after January 1, 1991) where,
48、 GB: tensile strength (N/mm2) P : breaking load (N) A : sectional area of spray deposit film (mm2). 4.4 Adhesion Test Method (2) Operation Attach the tensile jigs to both ends of the test piece, and mount them- on the tension tester. 10000 N/min as a rule. The load velocity shall be (Applicable on and after January 1, 1991) (3) Calculation calculated from the following formula: January 1, 1991) The bonding strength of the spray deposit film shall be (Applicable on and after where, F : bonding strength (N/mm2) P: tensi