1、Dc 621.886.1 : 621.884 DEUTSCHE NORMEN July 1977 I I - DIN 7341 Rivet Pins Nietstifte 1 Dimensions and designation Dimensions in mm Type A Type B ,ffjJTSk, Draw“ Dr3Wn -9- .L. - - L- -o“ li- t L- I I _I I I= I- Designation of a rivet pin Type A of nominal diameter dl = 5 mm with tolerance zone hl 1
2、1) and length 1 = 10 mm of 9 SMnPb 28K (St): Table 1. Rivet pin DIN 7341 - A5 hl 1 X 10 - St 2,521 3 4 5 6 8 10 12 16 20 dl H13 - 2 2,5 3,5 4.5 6.5 8 10 13 17 d4 + 0.5 - 1.5 2 2,5 3 4 5 6 8 10 t O 1 + IT l Weight (7,85 kg/dm3) kg/1000 pieces =for Type A 4 0,154 i 0.193 1 1 5 6 0,231 1 0,259 8 0,308
3、1 0,370 0,635 _-_-I_ - - . _ _ _-_ 10 0,385 -5481 0,832 1,163 - 12 0,462 0,592 1,029 1,472 2,289 14 O 703 1226 1,780 2,734 3,970 .-4 2,088 3,178 4,760 16 20 1,035 1,818 2,705 4,066 6,340 9,18 25 I 8,315 12,27 14,80 - ._ 30 L-I_ 2,804 4,246 6,286 10,29 15,35 19,24 30,67 35 5,016- 7,396 12,26 19,35 23
4、,68 38,56 5,787 - 8,506 14,24 22,92 28,12 46,45 63.00 40 45 1 9,616 16,22 26,18 32,56 54.34 75.33 50 I 10.73 18,19 29.44 36,99 62,23 87,66, 55 20,17 32.70 41,43 70,12 99,9 60 22,14 35,96 45,88 78.01 112,3 65 39.22 50.32 85,90 124,7 70 42,48 54.76 93,79 136,9 75 45,74 59,20 101,7 149,3 80 49,OO 63.64
5、 109,6 161,6 .- - _ 1 I 2,311 3,475 5,176 - - . - _ - _ _ Intermediate lengths should be avoided as far as possible. These rivet pins are normally made in the sizes for which weight data are indicated. The weights apply only for guidance and cannot be used for a binding determination of quantities.
6、1 ) See Section 3 2) This size is supplied only with plain ends. The indication of a type letter symbol in the designation is dispensed with. Continued on pages 2 and 3 Explanations on page 4 esale rights of German Standards (DIN-Normen) are with Beuth Verlag GrnbH. Berlin 30 and Kln 1 .80 DIN 7341
7、engl. Preisgr. 4 Vertr.-Nr. 0104 Page 2 DIN 7341 Main feature Secondary feature e.g. Length 2 Material St = 9 SMnPb 28K according to DIN 1651 or St 50 K + G according to DIN 1652 at manufacturers choice; if a specific Other materials by agreement. material is required, this is to be agreed. Type of
8、feature Main feature Secondary feature 3 Finish For diameter dl , tolerance zone h9 or hl 1 to be stated in the designation. Acceptable quality level (AQL) for testing for testing features defective parts 1 1.5 15 6.5 4 Requirements 4.1 General requirements For general requirements DIN 267 Part 1 ap
9、plies 4.2 External condition of the rivet pins The surface of the rivet pins must be free from scale and burr. 5 Testing 5.1 Testing for measuring accuracy and finish For the testing of measuring accuracy and finish the provisions of DIN 267 Part 5 apply as appropriate. For main and secondary featur
10、es Table 2 applies; for the acceptable quality level Table 3 applies. 5.2 Testing of mechanical properties and materials For testing the mechanical properties and materials the provisions of DIN 267 Part 5 apply. In doubtful cases the Brinell hardness test shall decide. Nominal diameter dl Diameter
11、d4 Depth of sinking t Centricity deviations DIN 7341 Page 3 3 4 5 6 8 10 12 16 dl 2,5 Projection 0.5 0,5 1 1 1,5 1,5 2 2 3 Depth of sinking - 1 1 1,5 1.5 2 2.5 3 4 z min. - _ tl 6 20 3 5 Examples of application Type A before riveting Y- -)O, Type B before riveting after riveting after riveting Page4
12、 DIN7341 Explanations The last issue of DIN 7341 appeared in 1963. The new knowledge acquired since then has made a new issue of the Standard necessary. The following alterations and additions have been made in the present new issue: a) The nominal diameters 2,13, 14,18 and 22 mm have been deleted,
13、since the demand for b) Commercial lengths and weights of the rivet pins have been included. c) Permissible dimension deviations for nominal lengths and holes have been stated. For the nominal diameters the usual h9 and hl 1 tolerance zones to be stated when ordering have been retained. d) The data
14、on materials have been modified. Under the symbol St the material 9 SMnPb 28 K predominantly used for rivet pins is mentioned, but under St the material St 50 K + G previously used has also been allowed at manufacturers choice, unless a specific material is stated when ordering. Materials other than
15、 these are possible subject to arrangement. e) The data on requirements and testing are to be regarded as an important addition com- pared with the March 1963 edition. These particulars have been adopted as appropriate from the new DIN Standards on pins and studs which have appeared in the meantime.
16、 In this connection it was considered initially whether the term “rivet pins” should be dropped, since pins according to DIN 7341 primarily fulfil the function of a pin on the lines of DIN 7, which is rendered captive simply by riveting over of the ends. For reasons which also included respect for existing documents, however, it was decided not to revise the nomenclature. previously mentioned new Standards on pins, studs and rivets. these nominal diameters is only very small. f) The content of the Standard has been re-arranged and also brought into line with the
