Plastic Material Application Chart
Plastic Material Application Chart There are many types of materials that may be used in the injection molding process. Most polymers may be used, including all thermoplastics, some thermosets, and some elastomers. When these materials are used in the injection molding process, their raw form is usually small pellets or a fine powder. Also, colorants may be added in the process to control the color of the final part. The selection of a material for creating injection molded parts is not solely based upon the desired characteristics of the final part. While each material has different properties that will affect the strength and function of the final part, these properties also dictate the parameters used in processing these materials. Each material requires a different set of processing parameters in the injection molding process, including the injection temperature, injection pressure, mold temperature, ejection temperature, and cycle time. A comparison of some commonly used materials is shown below Material Name Abbreviation Trade Names Description Applications Acetal Pom Celcon, Delrin, Hostaform, Lucel trong, rigid, excellent fatigue resistance, excellent creep resistance, chemical resistance, moisture resistance, naturally opaque white, low/medium cost Bearings, cams, gears, handles, plumbing components, rollers, rotors, slide guides, valves Acrylic PMMA Diakon, Oroglas, Lucite, Plexiglas Rigid, brittle, scratch resistant, transparent, optical clarity, low/medium [...]
Surface finish cross reference chart
Surface finish cross reference chart | sandpaper grit comparison chart Surface finish cross reference chart Surface finish Sandpaper grit conversion chart Standard Sandpaper & Whetstone Grit Sizes Range Of Belts Conversion Chart Surface finish sandpaper grit comparison chart Upmold collected these data for your reference for plastic injection mold quality of surface polishing, how to control or inspect the polishing quality of molds, also you can download it. Grit No China GB2477-B3 Japan R5001-87 Amecria ANS1(74) ISO FEPA(B4) Europe FEPA( 71) 4 5600-4750 1 5600-4750 5600-4750 1 5 4750-4000 1 4750-4000 4750•4000 1 6 4000-3500 1 4000-3360 4000-3350 1 7 3350-2800 1 3360-2830 3350-2800 1 8 2800-2360 2830-2380 2830-2380 2800-2360 2800-2360 10 2360-2000 2380-2000 2380-2000 2360-2000 12 2000-1700 2000-1680 2000-1680 2000-1700 2000-1700 14 1700-1400 1680-1410 1680-141 1700-1400 1700-1400 16 1400-1180 1410-1190 1410-1190 1400-1190 1400-1190 20 1180-1000 1190-1000 1190-1000 1180-1000 1180-1000 22 1000-850 1000-840 1000-850 1000-850 24 850-710 840-710 841-707 850-710 850-710 30 710-600 710-590 707-595 710-600 710-600 36 600-500 590-500 595-500 600-500 600-500 40 500-425 500-420 500-425 500-425 46 425--355 420-350 420-354 425-355 425-355 54 355-300 350-297 354-297 355-300 355-300 60 300-250 297-250 297-250 300-250 300-250 70 250-212 250-210 250-210 250-212 250-212 80 212-180 216-177 210-177 212-180 212-180 90 180-150 177-149 177-149 180-150 180-150 100 150-125 149-125 149-125 150-125 150-125 120 125-106 [...]
Injection Mould Steel Characteristics
Plastic Injection Mold Steel Characteristics & Application Steel Grade Comparable Standard AISI / JIS Hardening Delivery Hardness HRC Characteristics Applications ASSAB Steel IMPAX 718S P20 Modified Prehardened 31-36 Pre-hardened type, high purity with isotropic microstructure contains 1.0% Ni High quality mold inserts, best suitable for plastic molding of PA,POM, PS, PE, PP, ABS. IMPAX 718H Prehardened 36-42 EM38 — Prehardened 38-44 Good polishability, texturing, EDMing and machinability. Homogenous hardness Suitable for plastics injection mold, extrusion die and rubber mold STAVAX S136 420, ESR Through hardened 50-52 High purity, high polishability to mirror finish, with good corrosion resistance and low distortion after heat treatment. High quality mold inserts with mirror surface finish and good corrosion resistance, anti-corrosive cooling channel, best suitable for plastic molding of PVC, PP, EP,PC, PMMA, machine parts for food processing machinery. STAVAX S136H Prehardened 31-36 STAVAX S136 SUP 420, ESR Through Hardened 50-52 Corrosion resistance and toughness are better than S136 Suitable for big plastic mold with high precision requirement STAVAX S136H SUP Prehardened 31-36 Corrosion resistance and toughness are better than S136H POLMAX 420 (ESR+VAR), Optical Grade Through hardened 50-52 Ultra-high purity and extremely low segregation by double remelting process (ESR+VAR). Excellent polishability to attain optical requirement. Good corrosion resistance and low distortion after heat treatment [...]
Mold Texture Technology
Mold Texture Technology TEXTURE DEPTH AND SIDEWALL DRAFT CONSIDERATIONS To assure clean ejection of your part, we suggest using a simple rule for determining draft: 1.5 – 2 degrees of draft per .001” in texture depth This rule is for sidewalls of the tool that the part will shrink away from. Areas in the tool that the part will shrink toward will require more draft. Lifters, slides, cams, and other tooling components should have their texturing draft requirements evaluated based on their action as they move away from the part. Shut-off conditions on textured sidewalls may also be affected by the texture depth / tool draft relationship. Texture depth can be reduced in specific areas and/or the texture pattern can be ‘softened’ on surfaces where there are ejection concerns. Part design, part size, molding materials, texture construction, and other molding factors have a significant impact on ejection issues. Mold-Tech has the largest staff of technical advisors in the industry. We are available for early involvement in your project to assure that your decorating ideas are realized on your product. WHAT MOLD STEELS CAN BE TEXTURED? To assure that your molds are successfully textured, Mold-Tech has formulated the largest selection of mold [...]
Ra & Rz Roughness Specification
Surface finish Ra and Rz Roughness Specification Roughness Average -Ra Ra is the arithmetic average of the absolute values of the profile heights over the evaluation length. Ten Point Height of Irregularities - Rz(ISO) RZ is the average value of the absolute values of the heights of five highest-profile peaks and the depths of five deepest alleys within the evaluation length. Surface roughness terminology and parameters Ra and Rz are different parameters of roughness. Ra is the average roughness of a surface. Rz is the difference between the tallest "peak" and the deepest "valley" in the surface. Ra vs Rz is like comparing inches to meters. They are not compatible. Use one or the other not both. Surface roughness technical data
VDI 3400 VS SPI Finish Surface
SPI - VDI3400 surface roughness conversion | Minimum Drafting Angles EDM Mold Surface VDI 3400 Texture Surface finish VDI 3400 VDI texture mold standards SPI vs VDI finishes Surface roughness comparison chart VDI Mini draft angle chart VDI 3400 Depth Surface roughness conversion VDI 3400 ISO, VDI,ASA ISO/TC 213 SPI Polishing Grade Drafting Angles Charmilles Ra=CLA=AA Rz RMS PA PC ABS CH µm µinch µm Tipo µm µinch 0.025 1 N1 A1 0.022-0.043 0.5-1 Grade #3 Diamond 0. 05 2 N2 A2 -0.08 1-2 Grade #6 Diamond 0 0. l 4 N3 A3 -0.3 2-7 Grade #15 Diamond 1 0. 11 4.48 2 0. 12 5.04 3 0. 14 5.6 4 0. 16 6.4 5 0. 18 7.2 6 0. 2 8 Bl 0.3-0.324 7-9. 75 600 Grit paper 7 0. 22 0. 25 8.8 10 N4 B2 -0. 422 9. 75-12 400 Grit paper 8 9 0. 28 0. 32 11.2 12.8 B3 -0.52 Dez-15 320 Grit paper 10 11 0. 35 14 16 l. 5 Cl 0.52-0.65 15-20.5 600 Stone 12 0.4 N5 0 1 0.5 13 0. 45 18 20 C2 -0.89 20.5-26 400 Stone 14 0. 5 15 0. 56 22.4 25.4 2.4 0.5 1 0.5 16 0.63 C3 -1.125 26-32 320 Stone 17 0.7 28 32 [...]
VDI 3400 Surface Finish
VDI 3400 Surface Finishes Definition, VDI 3400 Depth VDI 3400 Surface Finish – is a scale often used by German machine manufacturers and quite widely used in Spark and Wire Erosion (Verein Deutscher Ingenieure, the Society of German Engineers) Charmilles EDM surface finish chart EDM surface finishes chart Charmille EDM finish Charmilles texture Charmilles finish EDM Sparking surface finish Measurement of surface finishes is done with instruments called profilometers. Experience proves that measurement of surface finishes by comparison using a surface finish gauge does not give an error above 2 CH classes. The criteria of roughness are the Ra (Europe) – CLA (UK) – AA (USA) To obtain a grading of roughness, Charmilles has defined a CH scale, which is however cross referenced with the standards that are in common use. Definition of Roughness criteria No CH = 20 log (10 Ra) (µm) Some significant rules and figures 1 µm Ra = CH20 10 µm Ra = CH40 If Ra = Ra x 2 CH = CH+6 ex: 1 µm Ra = CH20 µm Ra = CH26 µm Ra = CH32 The ratio between 2 successive CH units is 1.12 The difference between 2 successive CH units is 12.2% The MAX Rt: roughly equal to 8 x [...]
VDI3400 Surface Finish Comparison List
VDI3400 Surface Finishes Meter And Inch Comparison List EDM Mold Surface VDI 3400 Texture surface finish VDI 3400 VDI texture mold standards VDI surface finish conversion VDI Ra Aa VDI Ra Ra 3400 µm µinch 3400 µm µinch 0 0.1 4 23 1.4 56 1 0.112 4.48 24 1.6 64 2 0.126 5.04 25 1.8 72 3 0.14 5.6 26 2 80 4 0.16 6.4 27 2.2 88 5 0.18 7.2 28 2.5 100 6 0.2 8 29 2.8 112 7 0.22 8.8 30 3.2 128 8 0.25 10 31 3.5 140 9 0.28 11.2 32 4 160 10 0.32 12.8 33 4.5 180 1 1 0.35 14 34 5 200 1 2 0.4 16 35 5.6 224 13 0.45 18 36 6.3 252 1 4 0.5 20 37 7 280 15 0.56 22.4 38 8 320 1 6 0.63 25.2 39 9 360 1 7 0.7 28 40 10 400 18 0.8 32 41 11.2 448 1 9 0.9 36 42 12.6 504 20 1 40 43 14 560 21 1.12 44.8 44 16 640 22 1.26 50.4 45 18 720 Download PDF
Plastic Injection Mould Types
Plastic Injection Mould Types Low / High Cavitation Single cavity molds are designed to produce one part per cycle. They are a cost-effective approach when part volumes are low as they are less expensive to build. They also have a shorter lead time. The disadvantage is a higher piece part cost in molding production. Multi-cavity molds produce more parts per cycle. The major advantages are increased capacity and lower piece part costs as more parts can be produced within a comparable cycle time. Family Mold A family mold has a single mold base but two or more different cavities, allowing for the production of two or more different parts. All the parts can either be produced simultaneously or shut-offs can be used to isolate production to selected cavities. For best results in molding, the parts should be similar in size, shape, resin, and anticipated volumes, especially if the intention is to run all parts at the same time. Automation may be necessary to separate the pieces during or after production. If mold cost is a driving factor and volumes are low, a family mold can provide cost savings and versatility. Unscrewing Molds Unscrewing molds are the most common method of creating threaded holes within a plastic part. These molds are automated [...]
Agiecharmilles EDM Surface Finish Cross Reference Chart
Agiecharmilles EDM Surface Finish Cross Reference Chart EDM surface finish chart EDM mold texturing EDM mold finish, EDM mold surface finish EDM surface texture EDM surface finish chart EDM plastic finish EDM surface roughness EDM plastic molding Surface finish EDM VDI surface finish chart VDI surface finish Charmilles texture Charmilles Finish Charmilles surface finish chart Charmilles EDM surface finish chart AGIECHARMILLES EDM surface finish EDM Surface Finish Scale RA MICRO-METER RA MICRO INCHES RMS -2 0.08 3.14 3.9 -1 0.09 3.54 4.4 0 0.1 3.94 4.9 1 0.11 4.33 5.5 2 0.12 4.72 5.9 3 0.14 5.51 6.9 4 0.16 6.29 7.9 5 0.18 7.09 8.9 6 0.2 7.87 9.9 7 0.22 8.66 10.8 8 0.25 9.84 12.3 9 0.28 11.02 13.8 10 0.32 12.6 15.8 11 0.35 13.78 17.2 12 0.4 15.6 19.5 13 0.45 17.6 22 14 0.5 19.6 24.5 15 0.56 21.6 27 16 0.64 25 31.3 17 0.72 28.1 35.2 18 0.8 31.2 39 19 0.91 35.5 44.4 20 1.01 39.4 49.3 21 1.12 43.7 54.6 22 1.28 49.9 62.4 23 1.44 56.2 70.3 24 1.6 62.4 78 25 1.81 70.6 88.2 26 2.03 79.1 98.9 27 2.24 87.4 109.2 28 2.54 99.1 123.9 29 2.84 110.8 138.5 30 3.15 122.9 153.7 31 3.6 140.4 175.5 32 4.05 158 197.5 33 [...]
Ral Colour System
Ral Color Matching System These Colors Used For Molding & Printing Labels This chart is reference guide only, the Computer color simulations displayed may not exactly matching RAL-identified color standards, Use current Ral Color Publications for most accurate color; more questions, please contact UPMOLDor RAL (use CTRL + F to find a number of color) RAL RGB (approx.) HEX (approx.) Deutsch English Français Español Italiano Nederlands RAL 1000 214-199-148 #BEBD7F Grünbeige Green beige Beige vert Beige verdoso Beige verdastro Groenbeige RAL 1001 217-186-140 #C2B078 Beige Beige Beige Beige Beige Beige RAL 1002 198-166-100 #C6A664 Sandgelb Sand yellow Jaune sable Amarillo arena Giallo sabbia Zandgeel RAL 1003 229-190-001 #E5BE01 Signalgelb Signal yellow Jaune de sécurité Amarillo señales Giallo segnale Signaalgeel RAL 1004 205-164-052 #CDA434 Goldgelb Golden yellow Jaune or Amarillo oro Giallo oro Goudgeel RAL 1005 169-131-007 #A98307 Honiggelb Honey yellow Jaune miel Amarillo miel Giallo miele Honinggeel RAL 1006 228-160-016 #E4A010 Maisgelb Maize yellow Jaune maïs Amarillo maiz Giallo polenta Maisgeel RAL 1007 220-156-000 #DC9D00 Narzissengelb Daffodil yellow Jaune narcisse Amarillo narciso Giallo narciso Narcissengeel RAL 1011 138-102-066 #8A6642 Braunbeige Brown beige Beige brun Beige pardo Beige marrone Bruinbeige RAL 1012 199-180-070 #C7B446 Zitronengelb Lemon yellow Jaune citron Amarillo limón Giallo limone Citroengeel RAL 1013 234-230-202 #EAE6CA Perlweiß Oyster white Blanc perlé Blanco perla Bianco perla Parelwit RAL 1014 225-204-079 #E1CC4F Elfenbein [...]