Document jB3vbxQeo6Rg7kyOJJZpq14LR

LARGEST RESOURCES ' ^ O/ TRADE-MARK GREATEST VARIETY, LARGEST RESOURCE FOR PLASTICS KEYED TO YOUR SPEEDS BAKELITE Electrical ports molded from BMG 5000 Brown 15 are finely de tailed, hove good finish. Production of these intricate electrical parts is easier than it looks with Bakelite Phenolic Molding Material BMC 5000 Broun 15. Parts are rigid upon hot discharge from the mold. They're free of warpage and blisteringsignificant factor in pieces with many thick and thin sec tions. Finished moldings are dimensionally stable and mechanically strong so you have far fewer rejects. Outstanding blend-to-blcnd uniformity is one reason for the success of BMC 5000 Brown 15. Bv careful qual ity control, variations in blend and resulting molding diffi culties have been overcome. In addition, this material offers you wide molding lati tude and all-round utility. It gives excellent results on either compression, transfer or plunger molding equipment. Cake cover molded of Bakelite SMD 3500 Polystyrene Molding material by Columbus Plastic Products, Inc., Columbus, Ohio. This sparkling cake cover is one of the products in which a new Bakelite Styrene Plastic-SMD 3500--makes its dehut. The big feature of SMD 3300 is a rare combination of high plasticity and fast set-up time. In a recent field test, it cut mold-filling time from 12 seconds to 7 seconds--a 40*70 reduction! It also speeded setup time by ns much as 25 ... an important accomplishment for such a Jiighly plasticized material. You can use SMD 3500 on all types of injection mold ing machines. Its increased rate of fill raises your output, results in fewer and less noticeable weld lines, reduced strain, fewer rejects. It's easily colored, durable, and re sistant to foods, chemicals, moisture and grease. BAKELITE COMPANY, A Division of Union (Carbide ahd Carbon Corporation 30 East 42nd Street, New York 17, N.Y. `~TTTT I ~ W0 | II I W m transit . . . and demonstrate the toughness of Bakeute Polvethvlene. This material takes plenty of banging around without chipping, cracking or shredding. It's flex ible enough to form a snug, threaded seal. -. soft enough to prevent thread damage. And its reasonable cost makes these parts expendable. You c-an mold Bakeute Polyethylene into practically anv shape, color it almost any shade and give it a variety of surface textures. Resists cracking, age and abrasion... has good dielectric strength, stays flexible down to --70 degrees F. Foods, chemicals, solvents and moisture have virtuallvno effect on it. Lightest of all commercial plastics. BAKEUTE p:v/-rY7P--rr" r-rrp I f = [! i ; ' ( ' t ' ' ~ ; * - L i r- L L k. L - Ui V _ b_: PLASTICS these. Made of Bakeute Vinyl Elastomeric Plastics, they serve as grease seals, insulators, bushings and trim fittings on many of the latest models. These tough plastics stand up to blistering sunlight, road dirt, driving rain and snow for years. They won't rot, crack or scuff. Fuel and lubri cants won't harm their good looks. Bakeute Vinyl Elastomeric Plastics will give your product the same advantages. You can mold them easily ... be sure they'll be faithful to fine mold details. You can give them virtually any color and various degrees of resiliency. They have good dielectric strength and lasting flexibility' even at below-freezing temperatures. SC BAKEUTE r.rpr.-r?rTr LLj k tL "Caplugs," fhreoded seal ond shipping cops, molded of Eakelite Polyethylene by Protective Closures Co., Inc., Buffalo 23, N.Y. Automobile parts molded of Bakeute Vinyl Elastomeric Plastics by Detroit Macotd Corp., Detroit, Mich. Xo meet today's increased competi tion, your product must have the right quality at the right price. And both factors, of course, begin with the right raw materials. When you buy from Bakelite Company you can pick the materials with the properties that suit your job best. At this one source is the great est variety of plastics in the industry. Here, too, is a technical team of plas tics specialists ready to help you with any plastics problem. If you need assistance, talk it over with the Bakelite Company sales representative in your city. Or write directly to Dept. YN13, outlining your problem. BABCEL3TE FLAST3CS TRADE-MARK B' TftAOt | QQ PHENOLICS STYRENES POLYETHYLENES VINYLS FLUOROTHENES POLYESTERS EPOXIES In Canada: Bakelite Company, Division of Union Carbide Canada Limited, Belleville, Ontario MAY 1954 VOL. 1 No. 2 Molding Material Uniformity= Decreased DownTime= Greater Saving BAKELITE Phenolic BMG-5000--Black 25--The Answer to An Age-Old Problem roduced by Bakelite Company on new specially en Pgineered. semi-continuous equipment. Bakelite BMG-5000--Black 25. a general-purpose phenolic molding compound, overcomes one of the major causes of press shutdowns, that is, variations in the molding material used. The outstanding blend-to-blend uniformity of this new material coupled with increased molding latitude and all round utility, ensures the molder of greater economy and maximum production output. Bakelite Company specifically designed BMG-5000 -- Black 25 to answer the long-standing problems of the plastic molding industry. The qualifications which this new molding compound should possess were outlined at the start of the development program. Versatility was of prime importance so that this material would be suitable for compression, transfer or plunger molding. It must not be too sensitive to handle while preheating, nor must it cure too slowly in the mold. In addition, the molded piece must be rigid at hot discharge and be freely ejected from the cavity. Finally, the finished product, possessing minimum uniform shrinkage characteristics, must present a good appearance, free from warpage and blisters. Molders wanted such a material. Bakelite Phenolic BMG-5000--Black 25 is the answer. Plunger Molding at its Best This terminal strip with its numerous holes and intricate shape illustrates the successful results obtained with BMG-5000--Black 25. The excellent flow properties of this new material make possible total mold fill-out resulting in greater freedom from weld lines and strained sections. The overall dimensional stability of this material ensures the molder of precise shape retention both during production and after the piece is removed from the mold. BAKELITE COMPANY, A Division of Union Corbide and Carbon Corporation, 30 East 42nd St., New York 17, N-Y. BMG-5000--Black 25 is Ovality Controlled During the manufacture of BMG-5000--Black 25, sam ples are periodically checked to ascertain that the molding qualities of each blend will be uniform. Modern statistical control charts maintained on each property are evaluated so that any tendency to drift from normal can be detected immediately and the product kept within established limits. Similiar statistical control methods are applied to the manu facture of the resins used in the preparation of this molding material. The primary aim of this rigid control is to ensure the uniformity of proper plasticity, speed of cure and mold ing latitude. Finally, samples of the finished material are tested to be sure that the physical and electrical properties meet the specifications. Thus, a quality product is produced with the best raw ma terials and the most up-to-date manufacturing techniques. Carefully controlled and maintained from the time the resins and fillers are compounded and milled till the finished mate rial is packaged for shipment. BMG-5000--Black 25 offers maximum press output, maintenance of critical dimensional tolerances in the molded piece, and a good lustrous black surface of excellent high gloss. Production Economy for Small Parts and Wiring Devices This switch box case was plunger molded while its cover was Compression molded--both using BMG-5000 -Black 25. Illustrative of the myriad electrical wiring devices in use today, these pieces typify the long-draw, stagnant area molding problems encountered in the design of this type of product. Since these are mass production items, production economy is a ruling factor and the lower specific gravity of BMG-5000--Black 25 makes possible more pieces per pound. Bakelite phenolic BMG-5000--Black 25 is ideally suited for these interchangeable parts since it offers uniformity of molding material, minimum amount of flash, and rapid release from mold cavity and from plungers and followers. The term BAKELITE is a registered trade-rr Ropid Cure--Excellent Preheat--Dimensional Stability Recommend BMG-5000--Black 25 for Molding All Types of Handles For decorative and protective reasons, general-purpose phenolic materials have been used as handles for kitchen utensils, for electric roasters, grills, toasters, and other appliances, for hardware, and many other applications. rfBj'hree interesting examples of handles molded with BMG-5000-- l^jlk 25 are illustrated here. The large roaster handle (right) cured blister-free in 21 seconds instead of 30 seconds as was necessary with the molding material formerly used. It was rigid at discharge and did not slick to the mold cavity. Handles for electric irons, such as pictured (center), have always presented a problem of cure, due to the relatively thick and thin sections of the piece. The handle shown was molded blister-free in 46 seconds. Experimentally, the preheat time was increased to as high as 188 seconds and still produced perfect molded pieces. If not properly cured, handles having thick and thin sections sim ilar to the small roaster handle pictured (left) will warp. No warp ing was encountered when the handle was molded with BMG-5000 -Black 25. Good Mechanical Strengths and No Weld Lines on Intricate Molded Pieces The excellent results possible in using BMG-5000-Black 25 to mold intricate and complicated pieces are indicated in the radio chassis pictured. Measuring 6H inches long. 334 inches wide, and 114 inches at its highest point, it contains 100 holes and depressions. No weld lines are visible and the piece exhibits excellent mechanical strengths--noteworthy points considering the small sprue nozzle used. (Note Picture.) The chassis was molded in an overall time of approximately two minutes in a plunger-type mold. A charge of 146.5 grams of BMG-5000--Black 25 was transferred through the runners to the cavity by way of a '/s-inch diameter orifice. The material flowed freely around each core pin. The closing lime was 10 seconds. Borderline cure (no blistering on opening of the clamp) was obtained in 23.5 seconds. Production cure was obtained in 29.5 seconds. af Union Carbide and .Carbon Corporation Lower Specific Gravity Decreases Volume Cost Lower specific gravity means lower costs per molded piece. Bakelite Phenolic BMG5000--Black 25 has one of the lowest specific gravities of any .general-purpose phenolic molding compound and. thus, otTers the mold ing industry another saving. The following table provides a means of comparing the economics of molding with BMG-5000--Black 25 (Specific Gravity-- 1.34**) with that of your present phenolic molding material. This comparison is based on the molding of 1000 cubic inches of ma terial. oc Average Value -- 1.34 Range = 1.33 to 1.35 Specific Gravity 1.34 1.35 1.36 1.37 1.38 1.39 1.40 1.41 1.42 1.43 1.44 1.45 1.46 Weight llb.l Per 1000 Cubic Inches 48.3 48.6 49.0 49.3 49.7 50.1 50.4 50.8 51.1 51.5 51.9 52.2 52.6 Material Cost* Per 1000 Cubic Inches S 9.42 9.47 9.56 9.61 9.69 9.77 9.83 9.91 9.96 10.04 10.12 10.18 10.26 ' Baved on the current market price of general-purpose phenolic materials of SO. 195 per pound. SPECIFIC GRAVITY 2.40 E 2.30 E 2-20E 2.IO 2.00 1.90 1.80 170 1.60: 150 = 1.40 = MATERIAL COST COMPARISON To determine the volume cost of ony materiol, place one edge of o straight edge on the tpecific gravity of the moterial, ond the other on the cost per pound of the moteriol. When these two pointi ore joined by a straight line, the intersection of the "cents per cubic inch" line gives the volume cost. The line drown on the chars was obtoined for BmG-5000 (Specific Grovity --- 1.34 ond Cost per pound = SO. 195). The volume cost of BmG-5000 is 0.95 cents per cubic inch. 30 -- - 130 -- 1.20 = 1.10 - 1.00- DOLLARS PER LB. : 2.50 .2.00 ; 1.80 ; 1.60 L40 1.30 1.20 1.10 : 1.00 : 80 :.70 .90 SPECIFIC GRAVITY .15 CENTS PER CU. IN. DOLLARS PER LB. The doto contained in this brochure ore based on tests conducted at Bakelite Company Laboratories and at the manufacturers plonts. Each user must establish for himself the most suitable mold conditions, production methods, and control tests to insure the uniformity and quality of his product. Bakelite Compony has highly trained engi neers in the field reody to serve you, and these technical representatives will be glad to discuss your problems. Boston 16, Mass. . Chicogo 1, III. . Cincinnati 6, Ohio Cleveland 15, Ohio Clifton, N. J. . Detroit 21, Mich. . Hartford 3, Conn. . larchmont, N. Y. . J-804 BAKELITE COMPANY A Division of Union Carbide and Carbon Corporation SALES OFFICES 20 Providence Street 230 North Michigan Avenue 2506 May Street 1501 Euclid Avenue 1051 Bloomfield Avenue 10421 West 7 Mile Road 410 Asylum Street 1877 Polmer Avenue Los Angeles 58, Calif. New York 17, N. Y. . Philadelphia 3, Pa. Pittsburgh 22, Pa. . Rochester 4, N. Y. . St. Louis 22, Mo. . San Froncisco 11, Calif. 2770 Leonis Blvd. 30 East 42nd Street 117 So. 17th Street 537 Smithfield Street 82 St. Paul Street 122 No. Kirkwood Road 22 Battery Street Printed In U.S.A. Greater Uniformity--Versatility--Savings Possible with New Brown Phenolic BAKELITE Phenolic Molding Material BMG-5000 Brown 15 Offers Fast Production, Fewer Rejects, Better Appearance akelite phenolic BMG-5000 Brown 15 offers the B molder a brown general purpose phenolic molding ma terial with the same type of excellent properties and molding Characteristics which have helped make BMG-5000 Black 25 the fastest growing general-purpose phenolic on the mar ket. Specifically designed for the wiring device industry, this new molding material makes possible fast production, few rejects, and more pieces per pound. i Molding to an attractive rich brown color of unusual ucpth, Bakelite BMG-5000 Brown 15 produces molded parts possessing high gloss and excellent uniformity of sur face finish free from burns and lubricant smear, as well as gas marks and weld lines. Due to its excellent dimensional stability when discharged after molding, BMG-5000 Brown 15 can be used to mold pieces having intricate thick and thin sections. These charactertistics make it well suited for such electrical components as wall plates and receptacles and for such applications as handles for appliances and luggage. Like its black counterpart, BMG-5000 Brown 15 may be preheated using a wide range of preheat temperatures. In addition, it can be molded using cold preforms and no preheat with the same excellent results. This new molding compound also offers increased flow and more rapid cure. [Afplding Lofifude and Speed of Cor In BMG-5000 Brown 15, Bakelite Company has achieved an excellent balance of molding latitude and speed of cure in a brown phenolic molding material. It can be molded by compression, transfer and plunger methods. This versatility was displayed in several field tests in which varia^.ms in preheat time and mold closing speeds had no effect on the molding time or on the surface appearance when Switch Components The components of this switch box assembly illustrate the three-fold molding proper ties of BMG-5000 Brown 15: (1) more production per cav ity--the outcome of a material having a minimum cure. (2) easy release of molded part from deep or intricate cavities, and (3) accurate uniformity in dimen sions to ensure ready interchangeability and production assembly. Parts molded by The Bryant Electric Company. BAKE1ITE COMPANY, A Division of Union Carbide and Carbon Corporation, 30 East 42nd St., New York 17, N. Y Appliance Parts These handles for the Toastmaster toaster, an attractive combi nation of brown phenolic and chrome, offers an excellent illustra tion of the rich molded color and smooth surface appearance of BMG-5000 Brown 15. A 2.5 per cent savings in weight of charge was realized in molding these pieces due to the lower molded specific gravity of BMG-5000 Brown 15. In addition, the length of cure was reduced 20 per cent through the use of this new brown phenolic. Handles molded by The Minneapolis Plastic Molders. Inc. Bakelite phenolic BMG-5000 Brown 15 was used. In one test, the use of this new material reduced the minimum cure time 20 per cent over that needed for the material previ ously used. Optimum cure can be obtained by raising the mold temperatures from 310 to 360 deg. F. Excellent cutoff and good flash release are further recommendations for using this versatile molding compound; - __ Reduction of Molding Cycle A 15 per cent reduction in molding cycle time was effected by the use of BMG-5000 Brown 15 in the manufacture of this "Plugmold" receptacle. The part was molded in a twelve cavity, top ram plunger press, with cam operated side plates used to form undercut grooves on the sides of the piece. Using electronically heated pre forms. the molder was able to reduce his total molding cycle to two minutes. These receptacles are molded by Colts Manufacturing Co. for The Wiremold Company. Quality controlled from the raw material to the finished molding material, Bakelite phenolic BMG-5000 Brown 15 ensures a uniform molding material. Thus, the molder can be sure that each shipment he receives has the same plas ticity, speed of cure, molding latitude and color as the previous order. This uniformity makes BMG-5000 Brown 15 ideally suited for the molding of items having inter changeable parts, such as wall plates, light switches, duplex outlets, lamp sockets and two-piece outlet receptacles. Bakelite phenolic BMG-5000 Brown 15 possesses ex^^ cellent thermal and electrical insulating properties whici^a^ make this an excellent material for molding not only small wiring devices but also larger applications. These larger The term BAKELITE is a registered trade-mc ^applications may include switch gear for circuit breakers, power panels and control parts in industrial equipment, and terminal strips, fuse boxes and similar parts in elevator mechanisms. CAfore Mold&d.Pieces ferfaundj Every penny counts in such a highly competitive business as the manufacture of wiring devices. Realizing this. Bake* lite Company through its extensive development program, has produced a brown phenolic molding material having a specific gravity averaging 1.37 --BMG-5000 Brown 15 pos sesses one of the lowest specific gravities of any generalpurpose brown phenolic. This means greater savings to the molder since it offers more molding material per pound. This saving can be realized more fully by examining the chart given below. It can be noted that a molder who consumes 100.000 pounds of general-purpose brown phenolic, having an aver age specific gravity of 1.40, would realize a saving of $400 by using BMG-5000 Brown 15 instead of his previous material. Good Surface Finish + Moldability Excellent surface appearance, good moldability, speed of cure-- these are the characteristics of Bakeute phenolic BMG-5000 Brown 15 which recommend it for molding these 3-pole receptacles. This new phenolic molding material preforms well on electronic preheaters. The receptacles were molded by Formold Plastics Com pany for Ben P. McKinley Company. SAVINGS AVAILABLE THROUGH THE USE OF "BAKELITE" PHENOLIC BMG-5000 BROWN 15 AMOUNT OF GENERAL PURPOSE BROWN PHENOLIC MOLDING MATERIAL CONSUMED (POUNOS) Union Carbide and Carbon Corporation "BAKELITE'' General-Purpose Phenolic n*DE-*K Molding Material BMG-5000 Brown 15 PROPERTIES* Values Relating to Fabrication Granulation, mesh (D392-38) Bulk Facior (D392-38) Tabletting QualityCan be tabletted satisfactorily in the usual tabletting equip ment Pourability, seconds (D392-38) Molding Shrinkage, in./in. (WC-56-F) ......................... Plasticity-- (WC-540-C) Will be supplied in grades 6, 9, 12, 15 16 2.7 maximum 20 maximum 0.0035-0.0055 AVERAGE VALUES 16 2.4 17 0.0046 Values from Electrical Tests Dielectric Strength (D149-44) Short time, volts per mil Volume Resistivity, megohmcms. (D257-46) ................. Dielectric Constant (D150-47T) 60 cycles ............................. 1.000 cycles......................... 1.000.000 cycles ................. 'ower Factor (D150-47T) 60 cycles ............................. 1.000 cycles ....................... 1.000.000 cycles................ 300 minimum 5 x I0:' minimum 8 maximum 7 maximum 5 maximum 0.100 maximum 0.060 maximum 0.045 maximum 350 3.0 x 10^ 5.9 5.4 4.7 0.070 0.046 0.035 These properties meet the tentative specifications on this material. Values from Miscellaneous Tests Molded Specific Gravity (D392-38) .......................... Heat Distortion Temp. (D648-45T), deg. F.............. Heat ResistanceMolded parts ordinarily should not be exposed to tem peratures in excess of 300 deg. F. Water Absorption (D570-42). per cent gain in weight Saturation Constant (WC-78B) Diffusion Constant (WC-78E) 1.36-1.39 290 min. 0.6 maximum - AVERAGE VALUES 1.37 340 0.42 8.2 1.1 Izod Impact Strength, ft. lb./ inch of notch (D256-47T) . Compressive Strength (D695-44T), psi .................. Tensile Strength (D651-48) psi ............................ Flexural Strength (D790-45T), psi..................................... Flexural Work to Break (WC-91-C), ft. lb.................. Modulus of Elasticity in Flexure 0.26 minimum 30,000 minimum 7,000 minimum 9,000 minimum 9.0 x 10' minimum 0.29 36,000 9,000 10.300 .50 9.8 x 10- The data contained in lhi brochure are based an tests conducted at BaLeiite Company Laboratories and at the manufacturers* plants. Each user must establish for himself the most suitable mold conditions, production methods, ond control tests to ensure the uniformity and quality of his product. Bakelite Company hat highly trained engi neers in the field reedy to serve you, and these technical representatives will be glad to discuss your problems. 16, Mass. . o 1, III. . , ati 6, Ohio . nd 15, Ohio N. J. . . 11, Mich. . I 3, Conn. . ni, N. Y. . 1954 BAKELITE COMPANY A Division of Union Carbide and Carbon Corporation SALES OFFICES 20 Providence Sfreef 230 North Michigan Avenue 2506 May Street 1501 Euclid Avenue 1051 Bloomfield Avenue 10461 West 7 Mile Road 410 Asylum Street 1877 Palmer Avenue Los Angeles 58, Calif.. New York 17, N. Y. . Philadelphia 3, Pa. Pittsburgh 22, Pa. . Rochester 4, N. Y. . St. Louis 22, Mo. . San Francisco 11, Calif. 2770 Leonis Blvd. 30 East 42nd Street 117 So. 17th Street 537 Smithfield Street 82 St. Paul Street 122 No. Kirkwood Road 22 Battery Street ( Printed in U.S.A