Click here download book fundamentals of plastic mould design pdf introduction 1. Tool steel is ranked among our major products and we have a wide variety of products for cold work tool steels, hot work tool steels, highspeed tool steels, and plastic mold steels. Many of the most wellknown brands use uddeholm tool steel in their manufacturing processes, since plastic moulding is a demanding. The pack stage is necessary to force more melt into the mold to compensate for shrinkage. Aug 25, 2016 the most common, middleoftheroad tool steel is p20 or similar, which has 2830 rc hardness. Polishability cavities that require a mirrorlike finish must be made of special mold steels. Continuously growing activity in the area of the engineering plastics led to the necessity of developing new lowcost, highperformance plastic mold steels. Nak 80 steel rectangular pieces can be sawn from flat bar or plate to your specific. At0057 0311 surface coatings for plastic molds using moldmax. Low alloy cold work tool steel with good hardenability and wear resistance high strength and toughness, can be hardened to hrc 5054 high strength beryllium copper alloy, very high thermal conductivity. Our 2shot molding process solves assembly problems and reduces assembly operations. Optimizing quality heat treatments to get mechanical properties.
For most plastic molding processes injection molding blow molding compression molding extrusion mold steel requirements corrosion resistance machinability hardness dimensional stability steel solutions steel solutions aisi 1. The most important properties of plastic mould steels are wear resistance, hardness, toughness, corrosion resistance. Keeping pace with the high functionality and increasing variety of uses for plastics, yss steel for plastic molds contributes to the increasing precision of plastic products and reduction of costs. Plastic mold steel from doosan is also accelerating the development of industry. The most common, middleoftheroad tool steel is p20 or similar, which has 2830 rc hardness. The injection machine is constructed of a mold clamping device that opens and closes the mold tool, and.
Jun 18, 20 lkm injection mold steel for plastic mould manufacturing, one of most common mould steel in china, to understand the specification to choose reasonable and reliable solution for your mould. Providing unique specialty steels for todays plastic mold tooling ler m s a intr t grades. Hipm1 is free machining plastic mold steel prehardened to 40hrc. Products catalogs pdf file yss plastic mold steels, hipm series pdf. Therefore, many industrially developed countries have created an extensive range of plastic mold steel series, including carbon steel. Other commonly used steels bohler grade chemical composition in % standards c cr mo ni v others din aisi corrosion resistant steels n685 1 0. Most frequently used steels bohler grade chemical composition in % standards c cr mo ni v others din aisi corrosion resistant steels m303 1 0. Our exell grades are made with the advanced aseaskf steel making capabilies. A wide variety of plastic injection machine pdf options are available to you, such as equal, reducing. For the transparent plastic lens what is molded with pmma, pcpolycarbonate etc, we should choose 420 series stainless steel for core and cavity such as assab s6, nak80, 420, 420 esr.
Polishing instruction for plasticmouldsteel grades step one. A plastic product is only as good as the mold and the mold steel. The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, best. Alloy steels,mild steel,berylliumcopper3 main plastic mold material all production mold tools ought to be made out of highquality metals suitable bs, astm or din standards. Dymoteks advanced mold design considers all of these to create a. Mold, mldf aisi p20 supplied heat treated 9501100mpa dinmaterial number. Hardness in as supplied condition 280320 hb with having uniform hardness. At0057 0311 surface coatings for plastic molds using. We have the ability to engineer multimaterial solutions, combining plastic and silicone rubber. The problems are wellknown, choosing the right tool steel is the solution. Dont put too much pressure on the workpiece in order to avoid friction. This steel also comes in a highhard version 3840 rc, and in lens grade when high surfacefinish requirements are needed.
How to select the right steel grade to improve mold. This steel also comes in a highhard version 3840 rc, and in lens grade when high surface. The steel is commonly used for plastic injection mold cavities and tooling. Apr 21, 2020 alloy steels,mild steel,berylliumcopper3 main plastic mold material all production mold tools ought to be made out of highquality metals suitable bs, astm or din standards. Release characteristics normally relate to the coefficient of friction of the molding. Advanced plastic mold steel notes about safety catalog no hly70 pdf printed in june 2016 the charactersitics and properties listed on this catalogue are representative and not guaranteed values. For most plastic molding processes injection molding blow molding compression. Lkm injection mold steel for plastic mould manufacturing, one of most common mould steel in china, to understand the specification to choose reasonable and reliable solution for your mould. Design and manufacturing of plastic injection mould. Feb 01, 2008 the vast majority of molds for the plastic injection molding industry have been traditionally made of conventional steel gradessuch as aisi p20but an alternative steel1 that uses an innovative metallurgy very different from that of the family of aisi p20 was developed to break the mold of material for mold manufacture with the intention of satisfying the specific needs of the plastics.
Spi surface finish standards spi mold finish guide upmold. Aisi nak 80 steel round bar can be sawn to your required lengths as one offs or multiple cut pieces. Harsh environments put steel under considerable stress. Physical properties daido plastic mold steel series pac5000. Mold release release of a plastic part from the tooling on ejection is also key benefit of a properly designed mold. Glossy molding of tv bezel, glossy molding, molding for. Hold stage o when no more material can be forced into the mold, melt can still leak back through the gate. P20 is typically sold in the prehardened condition at a hardness of approximately 300 hbw.
Crimped sheet metal is a very reliable fastening method. Many of the most wellknown brands use uddeholm tool steel in their manufacturing processes, since plastic moulding is a demanding industry. Choose correct plastic mold steel based on plastic product surface finishing. Wide range of tool steel, alloy steel, carbon steel are available in stock for fast delivery. After a product is designed, usually by an industrial designer or an engineer, molds are made by a moldmaker or. Cena1 has excellent purity and suit for critical surface finish.
No matter whether you operate a job or captive shop, mold making costs must be estimated, either for bidding on jobs or accounting to manufacturing or staff. Steels excel in their properties such as excellent thermal conductivity, corrosion resistance and the highest wear resistance with an. Weldability a mold steel should be considered because of part design and engineering. Several unique metals are occasionally utilized, but the principal mold tool metals employed fall into three types. Glossy molding of tv bezel, glossy molding, molding for products with high quality surface of mobile equipments parts, oa equipments parts, auto parts. Din 2738 is upgraded version of plastic mold steel 0f 2311, which normally supply in pre hardened condition. Due to the enormous diversity of plastic materials and the widely varied requirements for plastic products, various requirements for the performance of plastic injection mold steel have been. The vast majority of molds for the plastic injection molding industry have been traditionally made of conventional steel gradessuch as aisi p20but an alternative steel1 that uses. User guide for superplast mould steels industeel arcelormittal. The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, best corrosion resistance among plastic mold steels. Mold design 121 mold basics 121 types of molds 124 mold bases and cavities 125 molding undercuts 128 part ejection mold venting partingline vents 1 vent placement 3 sprues, runners, and gates 3 sprues 4 runners 7 runners for multicavity molds 140 gates 144 other gate designs 145 gate optimization 147 gate position 149 hot. Do not duplicate or reprint all or any part of this catalogue. The pseries steels include p2, p3, p4, p5, p6, p20, and p21 steels.
Nak 80 plastic mold steel stockholders and suppliers. Low alloy cold work tool steel with good hardenability and wear resistance high strength and toughness, can be hardened to hrc 5054 high strength beryllium copper alloy, very high thermal conductivity, shorten moulding cycle effectively prehardened plastic mould steel prehardened plastic mould steel. Increasing demands with regard to the tools in plastic moulding ask for the specific development of tool steels having certain service properties for different. For the transparent plastic lens what is molded with pmma. Mar 25, 2018 due to the enormous diversity of plastic materials and the widely varied requirements for plastic products, various requirements for the performance of plastic injection mold steel have been laid down. P20 mold steel is a versatile, lowalloy tool steel that is characterized by good toughness at moderate strength levels. How to select the right tool steel for mold cavities. The additional nickel content of 1 % increases through hardening.
Mold steels are all lowcarbon tools steels with one mediumcarbon tool steels. Release characteristics normally relate to the coefficient of friction of the molding surfaces, and of course, proper mold design is important. This catalog and its contents are subject to change without notice. Mold base parts used when processing chemically aggressive plastics or for or corrosive working conditions. Misumi offers free cad download, short lead times and competitive pricing. Precipitation hardening tool steels are being proposed for such an application, yielding improved mechanical properties and lower overall costs and leadtimes.
Our products are manufactured at four production facilities in chicago, detroit, houston and quebec. Mold design 121 mold basics 121 types of molds 124 mold bases and cavities 125 molding undercuts 128 part ejection mold venting partingline vents 1 vent placement 3 sprues. Heattreating dimensional stability a steel with good dimensional stability must be selected. Plastic mould steel plastic mold steel latest price. All steels belonging to this series, except for p4 and. Machinability of great economic importance for the mold maker. P20 is the first choice in most cases when using plastics without abrasive additives, but as i mentioned earlier, unless it. The hold stage applies forces against the material in the. Uddeholm produce and deliver high quality swedish tool steel to more than. For japanese daido nak 80 tool steel plastic mold steel, we can supply the round bar, steel flat bar, plate, steel sheet, hexagonal steel bar and steel square block. This advantage all starts with dymoteks worldclass engineering capabilities.
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