high quality plastic mold steels hi-pm series · wear resistant mold for engineering resin (gear,...
TRANSCRIPT
2<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Mold Material and Application
GradeGroup Hardness Employed (HRC)
29 - 33
(Round Bar)38 - 42
(Flat Bar)33 - 37
35 - 41
37 - 41
38 - 42
50 - 55
56 - 62
60 - 63
60 - 65
35 - 45
52 - 57
HI-PM38
HI-PM31
HAP5R
ZCD-M
ZDP4
HI-PM75
YAG300
Material Type
AISI P20 improved
AISI 420 improved
AISI 630 improved
AISI P20 improved
Mold required good weldability and machinability (Autoparts, Home appliances, House equipment)
HI-PM7
HI-PM38
HI-PM77
PSL
HI-PM MAGIC
HI-PM1
FDAC
Rust resistant mold with good polishing properties(CENA-G: General grade, CENA-V: Valuable grade)
General Mass-Production Mold (Autoparts, OA equipment, Home appliances)
Mold for general use (Home appliances etc), Plate and holder
Engineering resin, Slide core
Mold for Anti-corrosion/Mirror polish (Medical instruments,Food container, etc)
Wear resistant mold for engineering resin (Gear, Connector, IC)
Mold required high toughness and high hardness (Core pin, Thin wall)
IC mold
Reinforced and �ame retardant engineering resin, IC mold, Slide parts, Cutter required exceptional wear resistance
Molding in magnetic �eld (Plastic magnet)
Mold required exceptional toughness (Core pin, Thin wall),Super mirror polish (Optical lens)
Mold for polyvinyl chloride, Frothy resin, Rubber
Flame retardant resin, Transparent parts, Rubber
Corrosion resistant mold bases, Rubber mold
Application Example
Pre
hard
ened
Fo
r Q
uenc
h an
d T
emp
erF
or
Ag
ing
CENA-GCENA-V
AISI 420 improvedFree-cutting by
adding Sulfur
AISI P21improved and Free-cutting by
adding Sulfur
AISI-H13 improved and Free-cutting by
adding Sulfur
Chromium containedlow Carbon grade
AISI 420 improved
AISI D2 improved
P/M HSS
AISI-D2 improved
Maraging Steel
High hardness, non-magnetic, Free-cutting
by adding Sulfur
P/M Cold Work Tool Steel
3<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
SHORT<100,000
HI-PM7
HI-PM7
HI-PM MAGICCENA-G, CENA-V
FDAC, HI-PM1
HI-PM38(Prehardened)
CENA-GCENA-V
CENA-V
HI-PM MAGICCENA-G, CENA-V
FDAC, HI-PM1
MEDIUM<500,000
HI-PM7HI-PM MAGIC
CENA-GCENA-V
HI-PM7HI-PM MAGICFDAC
HI-PM38PSL
CENA-VHI-PM38
HI-PM MAGICCENA-GCENA-VFDAC
HI-PM31
LONG<1,000,000
LHI-PM MAGICCENA-GCENA-V
HI-PM31
LHI-PM38
LHI-PM38
LHI-PM31
MASS PRODUCTION>1,000,000
HI-PM MAGICFDAC
HI-PM31 + PlatingZDP4
HAP5RHAP40
HI-PM38 + Plating
LHI-PM38
LHI-PM31
ZDP4 + Plating
Required Properties for Mold
Machinability
Wear Resistivity
High Wear Resistivity
Corrosion Resistivity
Mirror Polishability
Wear Resistivity
High Wear Resistivity
General
Engineering Resin
Reinforced
Flame Retardant
Transparent
General
Reinforced
Thermo-plastic
Thermo-set
Resin
Required Life and Grade Recommended
+ Nitriding
+ Plating
+ Nitriding
+ NitridingPlating
+ Nitriding
+ Nitriding
General Resin : PS, PE, PP, AS, ABS etc.Engineering Resin : PC, PPE, PA, POM, PBT, PET etc. Advanced Engineering Resin : PPS, PI, PES, PEEK etc.
HI-PM31ZCD-M
HI-PM MAGICFDAC
HI-PM MAGICFDAC
HI-PM38HI-PM31
HI-PM MAGICFDAC
+ Plating
Resin Types and Grade Selection
Properties Comparison Table
Ratings : A--Best C--Ordinary D,E--Poor (Remarks) Please refer above as general concept.
C - B B A C D B A C - A A A C D B A B - B C+ A D D B D A - C C A D D B D A - D D D D D D E
C A C B -
B - D D C B D C -
D - B C A A D B -
C - D D C D C C - C B A B D C B C - D C A D E C B D - E D B B E C A E - C C A B D E B B - D B A A+ A D C A - E B D D E B C C - A - C C C E E C - C - C D D D D C -
35-4135-4137-4129-3337-41
29-33
38-4256-6260-6360-6556-6252-5735-45
--
CENA-G
CENA-V
HI-PM MAGIC
HI-PM7
HI-PM1
HI-PM38
HI-PM77
PSL
FDAC
HI-PM31
ZCD-M
ZDP4
HAP5R
YAG300
HI-PM75
(S55C)
(SCM440)
AISI-P20 Mod.
Cr cont. Low C
AISI-P21 Mod.
AISI 420 Mod.
AISI 630 Mod.
AISI-H13 Mod.
AISI-D2 Mod.
P/M HSS
Maraging Steel
Non-magnetic
(AISI 1055)
(AISI 4140)
RustResistivityToughness
WearResistance
CorrosionResistanceWeldability
MirrorPolishability
EDM/TextureSurface
Dimensional Change
by Heat Treatment
MachinabilityHardness
(HRC)YSS
GradeMaterial
Type
29-33(50-55)
A(A+)
-(A)
C(B)
C(B)
33-37(Flat bar)
4<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Machinability
Polishing Property(Schematic Diagram)
Drilling
Tool: AISI-M2 φ10
Feed: 0.15 mm/rev
Depth: 30 mm
Dry
Properties Comparison
(Remarks)This diagram does not show etching ef�ciency.(Etching ef�ciency is inversely proportional to the corrosion resistance.)
Text
urin
g P
rop
ertie
s
Better
Better
10
20
30
40
50
60
2,000 4,000 6,000 8,000 10,000 12,000 14,000
Mirror Polishability (Grain Mesh)
Har
dne
ss (
HR
C)
Better
General products Transparent products
Super mirror �nishOptical discOptical lens
HI-PM38
CENA-GHI-PM MAGIC
CENA-V
ZCD-M
HI-PM38
FDACHI-PM1
PSL
ZDP4HAP5R
HI-PM31YAG300
HI-PM75
AISI 1055
AISI 4140
HI-PM77 HI-PM7
Prehardened
For Quench and Temper
For Aging
CENA-GHI-PM MAGIC
HI-PM7
HI-PM38DAC-S
CENA-V
Single meltFDACHI-PM77HI-PM1
Remelt
Free Machining Grade Grades for Polish (Grain Mesh No.)
3,000 5,000 8,000 14,000
General Texturing Fine Texturing
Hardness(HRC)
13
28
32
32
32
35
40
40
40
(A)
(A)
(ST)
Grade
AISI 1055
AISI 4140
HI-PM7
HI-PM38
HI-PM77
PSL
HI-PM MAGIC
HI-PM1
FDAC
AISI-D2
HI-PM31
HI-PM75
Cutting Speed (Tool Life: Cutting Length 1 m) Better
100 20 30 40 50
Texturing Properties (Schematic Diagram of Uniformity by Etching)
(A): Annealing, (ST): Solution Treatment
5<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Properties Comparison
Grade
AISI-D2
HI-PM31
ZDP4
AISI 440C
ZCD-M
AISI M2
HAP40
Hardness(HRC)
60
59
65
57
63
63
67
0.2 0.40 0.6 0.8 Better
Corrosion Resistance (5% Sulfuric Acid Solution) BetterGrade
PSL
HI-PM75
HI-PM38
AISI 440C
AISI-D2
HI-PM31
HI-PM MAGIC
AISI 4140
50 10 15 20 25
Corrosion Mass Loss (mg/cm2・h)
Wear ResistanceOgoshi-type Abrasion TestWork Material: SCM415Load: 67 NFriction Distance: 400 mFriction Speed: 0.78 m/s
Mechanical PropertiesTensile
Strength(N/mm2)
0.2% Yield Strength(N/mm2)
Hardness
(HRC)
Elongation
(%)
Reductionof Area
(%)Grade
HI-PM7
HI-PM38
HI-PM77
PSL
CENA-G, CENA-V
HI-PM MAGIC
HI-PM1
HI-PM75
YAG300
32
52
32
39
37
38
40
40
42
53
975
1,910
990
1,170
1,150
1,185
1,225
1,215
1,305
2,010
855
1,620
845
1,100
1,020
1,010
1,030
1,010
1,110
1,910
20
13
16
11
20
17
18
10
11
10
55
35
41
34
56
59
40
25
28
48
L
T
Wear Ratio (mm3/mm2・mm)×10-7
6<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Properties Comparison
Physical Properties
Grade
HI-PM7
HI-PM38
HI-PM77
PSL
CENA-G, CENA-V
HI-PM MAGIC
HI-PM1
HI-PM31
ZCD-M
HI-PM75
YAG300
100℃
11.6
10.4
10.1
10.6
−
11.5
11.4
12.4
10.5
16.1
−
200℃
12.2
11.1
10.7
11.1
11.5
12.3
11.8
13.1
10.8
17.2
10.8
400℃
13.4
11.8
11.5
12.1
12.6
13.4
12.8
14.1
11.9
18.6
−
20℃
34.3
22.1
22.3
15.8
31.2
31.4
31.5
26.5
16.4
12.3
20.9
100℃
38.3
25.5
24.9
20.0
−
34.1
36.6
−
19.4
14.5
−
200℃
39.8
26.7
26.3
22.2
34.7
37.7
38.4
34.4
22.0
16.4
25.5
300℃
40.4
28.5
27.9
24.2
34.3
40.2
39.4
−
25.3
18.7
−
400℃
40.6
29.6
29.5
25.5
34.5
41.1
40.1
39.8
24.4
20.4
27.6
Thermal Expansion Coef. ( x 10-6/℃)
Averaged value from 30℃ to each temp.Thermal Conductivity (W/m・K)
300℃
12.8
11.5
11.1
11.9
12.1
12.9
12.3
13.6
11.5
18.0
−
Chemical Composition
VMoYSS Grade Others C Mn Ni CrSi
0.2
0.4
0.3
0.4
0.3
0.7
−
0.3
0.3
−
Steel Grade Chemical composition (Typical)
Original Steel
Original Steel
Original Steel
AISI equivalent
P20 Mod.
420 Mod.
420 Mod.
630 Mod.
−
P20 Mod.
P21 Mod.
D2 Mod.
(P/M HSS)
D2 Mod.
D2 Mod.
−
−
HI-PM7
HI-PM38
HI-PM77
PSL
CENA-G, CENA-V
HI-PM MAGIC
HI-PM1
HI-PM31
HAP5R
ZCD-M
ZDP4
HI-PM75
YAG300
0.15
0.40
0.40
0.04
0.12
0.90
0.90
2.70
0.60
−
1.8
13.5
15.7
15.5
−
7.0
4.3
16.5
10.0
−
0.4
0.6
−
0.7
0.3
1.1
3.0
2.0
2.0
5
0.1
−
−
−
−
0.4
3.0
3.2
1.3
−
Cu: 0.3
S: 0.1
Cu: 3, Special element
W: 2
Co: 2
S: 0.1, Cu: 2.5, Al: 1
Co: 9, Ti: 0.9, Al: 0.1
S: 0.1, Cu: 2, Al: 1
1.8
0.4
1.8
0.8
0.9
0.5
−
0.3
6.5
−
−
−
0.5
4.5
3.0
−
−
−
7.5
18
7<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
40HRC Prehardened Grade
Bathroom �xtures
Home appliances
Moisture resistance test
Rust Resistivity
Automotive lamp parts
CENA-GCENA-V
P20(30HRC)
P20+Ni(40HRC)
P21(40HRC)
Test piece: 10 mm X 20 mm X 40 mm, #800 �nishCondition: temp. 80℃, humidity 90%, 2 Hr hold
Features
Application
●●
●●
Good rust resistivitySelectable two grade materials, differ in mirror polishability• CENA-G: General grade, for general products• CENA-V: Valuable grade, for transparent productsHigh toughness. Applicable for Large size mold.High thermal conductivity, applicable for High-speed heat cycle molding.
●
●●●
Applicable for gloss surface, rust preventive, weldless injection moldings and others.Automotive lamp partsBathroom �xturesHome appliances
CENA-G and CENA-V, its materials improved both rust resistivity and mirror polishability.Prehardened hardness 35-41 HRC. Surface hardness up to 1000HV by nitriding.Its properties will reduce maintenance man-hours and prevent issues during mold manufacturing.
Prehardened: 35-41HRC
Advanced Plastic Mold SteelsGood Rust ResistivitySelectable Mirror Polishabilities
CENA-G,CENA-V
8<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Features
Features
● General resin products for home appliances, OA Auto and so on.
● No heat treatment is necessary (37- 41HRC)● Stable mirror polishability● Steady machinability. Fits for high-speed high feed cutting● Higher toughness compared with conventional 40HRC grades● Easy Weldability● Good EDM �nishability● Excellent nitriding properties
Application
Application
Home appliances, OA equipment, Auto parts
HI-PM MAGIC
Thickness 140 mm80
60
40
20
0(J
/cm
2 )C
harp
y Im
pact
Val
ueP21
Improved SteelP20
Ni Steel
HI-PM MAGIC is a plastic mold steel prehardened to 37-41HRC which has both high durability and excellent processability. Easy weldability will make setup of the new products of home appliances, OA appliances or Auto parts smoother.
Comparison of 2 mmU notch Charpy impact values
(example of measurement byour company)
40HRC Prehardened Grade
Prehardened: 37-41HRC
Advanced Plastic Mold Steel for general purposes
HI-PMMAGIC
150 100 50 0 50 100 150
Distance from Center (mm)
20
30
40
50
Har
dne
ss (H
RC
)
HI-PM MAGICHI-PM1
HI-PM7, HI-PM38, HI-PM77
AISI 4140
AISI 1049
Cross Section Hardness Distribution(300 mm Square Size)
HI-PM1HI-PM1 is free machining plastic mold steel prehardened to 40HRC. With superb machinability, HI-PM1 is �tted for genaral applications.
● No heat treatment is necessary. (37-41HRC)● Excellent machinability among 40HRC prehardened grades.
● General Plastic Products● Precise Rubber Mold, etc. For Smooth Cut Surface.
Prehardened: 37-41HRC
Free Machining Precipitation Hardening Grade for Precise Mold
9<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Application
●●
●
Auto parts: Headlamp, Tail lamp, Inner panel, etc.Home appliances, House equipment: TV cabinet, Air conditioner housing etc.Others large miscellaneous goods, Large equipment, Pipe, Rubber
y-groove Weld Crack TestJIS Z 3158
TIG WeldingNo pre-heating / No post-heating
2 4 6 8 100
0.0
0.2
0.3
0.4
Cutting Length (m)
Too
l Wea
r (mm)
Endmill: Co-HSSφ3 V = 22.5 m/min f = 0.0552 mm/Blade a = 2w×10H Wet
AISI 4140
P21 improved (free cutting)
HI-PM7
Machinability Comparison
Inner Panel
Features
32HRC Prehardened Grade
AISI 4140 Crack has occurred
HI-PM7 No crack
Tail Lamp
HI-PM7 is a plastic mold steel prehardened to29-33HRC �tted for medium and large size mold, having good machinability and weldability. In addition, it has good mirror polishability and electric discharge machinability.
●
●
●●●
●●
Uniform hardness distribution even in large crosssection. (29-33HRC)Machinability is better than AISI P20 or free machining steel.Excellent weldability with least hardness elevation.Stable mirror polishability.Less streak texture and least hardness elevation on EDM surface make �nishing easier.Excellent toughness.Excellent nitriding property.
Prehardened: 29 - 33HRCFor Medium and Large Mold for General ApplicationHI-PM7
10<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
HI-PM38
CD, DVD
HI-PM38 is Mo contained 13Cr martensitic stainless steel prehardened to 29-33HRC, manufactured by consumable electrode remelting method, further hardenable to 50-55HRC. It is �tted for molds which require corrosion resistance and superb mirror polishability. In addition, it suits for precise heat treatment. Excellent corrosion resistance also makes mold storage easier.
●●
●●
Excellent mirror polishabilityBetter corrosion-resistivity than AISI 420.Chromium plating is not necessary.Least heat treatment deformation, best �tted for precise mold.As HI-PM38 is supplied as prehardened condition, it can be used without further heat treatment also.
●●
●
Transparent items: Lense, Container for cosmetics, etc.Flame retardant resin products: Home appliances, OA equipmentFor omitting plating: Food container, Medical instruments
●●
Quenching: 1,000-1,050℃ Air CoolingTempering: 200-500℃ Air Cooling
Food Container
48
50
52
54
56
Har
dne
ss (H
RC
)
-0.05
0
0.05
0.10
Dim
ensi
onal
Dis
tort
ion
(%)
as Quench 200 300 400 500 600
Tempering Temperature (℃)
Width
Length
Heat Treatment Properties of HI-PM38
Stainless Steel for Quench and TemperPrehardened: 29-33HRCHardenable to: 50-55HRC
For Anti-Corrosion andMirror Polish Mold
Application
Heat Treatment
Features
Specimen: 65 T×100 W×150 L
Quench: 1,030℃ (VQ) N2gas Cooling
11<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
PSL is precipitation hardening stainless steel which shows excellent corrosion resistance as used for corrosive gas yielding resins or resins with �ame retardant additives without plating.
●
●
Excellent corrosion resistance among plastic mold steels. Plating is not needed.Least hardness elevation on EDM or welded surface and easier �nishing jobs.
●
●●
Good corrosion resistance and well �tted for rust protection of water cooling holes or surface of mold base.Excellent machinabilityPrehardened and good mechanical properties
●●●
Polyvinyl chloride: Pipe �ttings, Pipe, Sash, etc.Resins with �ame retardant additivesPrecision mold for rubber
●●
●●
Holder for compact disc mold or lens mold.Holder for food or medical container mold and precise engineering resin mold.Mold for rubberAnti-corrosive support tools
Prehardened Stainless Grade
PVC Extruded Products
Corrosion Resistivity Comparison
Water Leve
Rust after 1 month dipping in water
HI-PM77AISI 1055
0 10 20 30 40 50Dipping Time (h)
0
0.0
1.0
1.5
2.0
Cor
rosi
on M
ass
Loss
Rat
io (%
)
AISI-D2 (58HRC)
AISI 420F (30HRC)
PSL (40HRC)AISI 304
AISI 4140 + Cr plating
HI-PM77Prehardened: 29-33HRC
Free Machining Martensitic Stainless Grade for Mold Base
PSLPrehardened:
For Higher Grade Anti-Corrosion Mold
Application
Features
Application
Features
33-37HRC (Flat bar)38-42HRC (Round bar)
〈Test Condition〉Solution: 10%HCL
Temp.: 40℃
12<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Hardenable to: 55-60HRC
High Wear Resistant Grade for Mass Production
HI-PM31 is wear resistant plastic mold steel with �ne carbide uniformly distributed by means of appropriate alloy design and consumable electrode remelting process. Least heat treatment distortion, it suits for precise heat treatment.
●●●
●
●
Wear resistance is as high as JIS AISI D2.Much better machinability and grindability than AISI D2.Least heat treatment deformation, best �tted for precise mold.Good mirror polishability surface texturability and electric discharge machinabilityHigh hardness and toughness, enough against chipping or breakage
Engineering resin products and thermosetting resin productsPrecise mold: IC mold, Connector, Watch parts, Camera parts
●●
●●
Quenching: 1,000-1,050℃ Air CoolingTempering: 200-550℃ Air Cooling
High Wear Resistance Grade
Engineering Resin Gear
IC Mold
Heat Treatment Properties of HI-PM31
200 300 400 500 600
54
56
58
60
62
-0.05
0
0.05
0.15
Har
dne
ss (H
RC
)D
imen
sion
al C
hang
e R
atio
(%)
as QuenchTempering Temperature (℃)
HI-PM31
Application
Features
Heat TreatmentThicknessWidth
Length
Specimen: 16 T X 46 W X 60 LQuench: 1,030℃ (VQ) N2 Gas Cooling
13<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Hardenable to: 52-57HRC
Super High Toughness Maraging Steel
As YAG300 is delivered as solution heat treated condition, you are advised to conduct aging at 480-520°C in order to get hardness between 52-57HRC after engraving cavity.
●
●●
Excellent toughness and mechanical properties under high hardness and best �tted against breakageSuperior mirror polishabilityHardness of 55HRC is obtainable by aging at 500℃ with least distortion
●●
●
Permeability (μ) is 1.01, equally non-magnetic as AISI 30435-45HRC is obtainable by aging of 700℃ × 5h and has higher wear resistance.Good nitriding properties
●●●
Optical lensThin core pinEjector pin, either of small diameter or of long length
●●
Plastic magnetWear resistant, non-magnetic supportive tools
Aging Grade
(Remarks)Slower machining recommended as it is easily hardened by machining.
Ejector pin
Optical Lens
20 30 40 50 600
1000
2000
3000
Not
ch T
ensi
le S
tren
gth (
N/m
m2 )
Hardness (HRC)
YAG300
AISI-H13
AISI 4140
Relationship between Hardness and Notch Tensile Strength
Plastic Magnet
YAG300
Hardenable to: 35-45HRC
Non-Magnetic High HardnessFree Machining Plastic Mold Steel
HI-PM75
Application
Features
Application
Features
(Remarks) This product might correspond to the Export Trade Control Order.When you export this product, you might need apply for export licenses to the authorities in your country.
14<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Higher Grade Polishing Method of Plastic Mold
● Polish by oil grinding stone (use kerosene)
● Polish by oil sand paper (use kerosene)
● Finish Polishing by diamond compound (use felt cloth)
#180→#240→#320→#400→#600→#800
#600→#800→#1000→#1200→#1500
#1800→#3000→#8000→#14000
Polish procedure Example
B. Load for polishing should be kept the lowest possible.
C. Foregoing polish should be done prudently.
D. Rust proof measures must be taken in any interruption of jobs.
Scratch remains due tooverload.
Seam and pinhole texture at crossing by less foregoing polish
Pinhole texture by inapropriate rust proof.
Diamond Compound Finish Aluminium Oxide FinishNot Good
Chromium Oxide FinishNot Good
Important points of polishing
1. Each procedure is to be strictly kept.
2. When changing from one number to another, check if there are remained scratches by changing polishing direction. (move 45-90 degrees)
3. When changing numbers, wash and remove last polishing grains completely.
4. Polishing by diamond compound needs to be done in short times. Excessive polish can produce pinholes or orange peel.
5. Avoid alumina and chromium oxide as the polish capabilities are lower than diamond.
6. During long interruption, the object must be protected from the rust.
Remarks:A. For superior polishing use diamond compound. Don't use alumina nor chromium-oxide compound.
(9μm) (6μm) (3μm) (1μm)
15<Attention> The characteristics, photos, charts, rankings and evaluations of this catalog are representative value by our test data, it does not guarantee the quality of the product. This catalog and its contents are subject to change without notice.
YSS Plastic Mold Steels HI-PM Series
Attentive points1. Preparations before welding
A. Form of location to get welded should be made smooth as Figure 1.
B. Cracks and treated surface (nitrided or plated) must be eliminated.
C. Oil, dust, moisture and scale must be removed thoroughly.
Figure 1. Standing shapes for build up welding
Figure 2. Welding procedure
Edge Overlaying Corner Overlaying Groove/Hole Overlaying
≧5C
≧5R45° R
W
D
W>4DR>D
A. Welding rod of similar composition as mold is to be used so that welding may not bring about unevenness of mirror �nish or texturing surface.
When the mold is made from HI-PM MAGIC, use welding rod made from HI-PM MAGIC-W. Please refer to special welding material manufacturers or distributors for a kind and the specifications of the
welding rod.
B. In case of using coated electrode, weldling rod should be dried by heating to 250-300℃ before using.
C. For cavity welding, TIG welding should be applied. (TIG: Tungsten Inert Gas)
2. Welding rod
A. Figure 2 shows example of actual welding jobs of representative grades.
B. Tempering should be conducted soon after welding in case of prehardened steel or hardened and tempered steel according to Figure 2.
Tempering is effective to protect mold from crack and to stabilize mirror �nish and surface texture by having uniform hardness and structure.
3. Welding
Pre-heat100-150℃
Post-heat200-300℃
Welding
Cool Slowly
Tempering500-600℃
1 h /25 mm
Welding Procedure DiagramCondition (Recommended)Welding RodWelding
TIG
TIG
Shielded Metal Arc
HI-PM7-W
DF2A-300-R(JIS Z3251:2000)
HI-PM MAGICHI-PM MAGIC
-W
HI-PM7
Mold Steel
Grade
●Shielded Metal Arc Welding Rod 3.2φ 4.0φ
Current90-120A
130-160A……………………
●TIG WeldingRod 2.4φ 3.2φ
Current80-160A
110-200A
Flow Rate 10-15ℓ/min
……………………
Air Cooling
Pre-heat150-300℃
Post-heat150-300℃
Welding
450-550℃
(Stress relieving for correcting deformations and precise surface texturing)
Air Cooling(Cool Slowly)
Welding of Plastic Mold
May 2018 (PDF)
・The characteristics listed on this catalog are representative values and they do not guarantee the quality of the product.
・This catalog and its contents are subject to change without notice.・Do not duplicate this catalog without a permission from Hitachi
Metals, Ltd.・For further information, please contact the representative in your
area.
Steel is heavy. Please execute the safety measures to prevent falling or collapse of cargo or sandwiched during transportation or warehousing. Please ensure the safety of workers use the jigs and various protective equipment and follow the applicable laws and ministerial ordinance, ordinances, guidelines, etc. when sawing, cutting, heat treatment, polishing or when using as mould, machine parts, or tooling.
Our address and contact indicated in this catalog are those as of May 2018.If you cannot put a call through, please contact our Corporate Communications Of�ce in Tokyo below.
Hitachi Metals, Ltd.Toll free: 0800-500-5055 (in Japan)Tel: +81-3-6774-3001
http://www.hitachi-metals.co.jp/e
Shinagawa Season Terrace, 1-2-70, Konan, Minato-ku,Tokyo 108-8224, Japan Specialty Steel Company, Tool Steel Business Unit.
Head Office
Cha Shan Town, Dong Guan City, 522380, ChinaHead Office
Head Office
Tel. +86-769-8640-6726
3#-2, Koushin Mould Industrial Park Ⅲ B-1-1-1F.T. Z. Dalian, 116600, China
Dalian Branch Tel. +86-411-8718-1011/1022
No.69 Shuang Ying Road, Qingpu Industrial Zone, Qingpu District, Shanghai, 201712, China
Shanghai Branch Tel. +86-21-3929-2202
Rm. 1606. City Air Tower Bldg., 36.Teheran-ro 87-gil, Gangnam-gu, Seoul, 06164, Korea
Tel. +82-2-551-4422
No.11, Jianshe 4th Branch Road, Balitai Town, Jinnan District,Tianjin, 300350, China
Tianjin Jinnan Branch
Tel. +86-22-8699-3101/3102
1/60, Moo 5, Rojana Industrial Park, Tambol Khanharm, Amphur Uthai,Ayutthaya 13210, Thailand
Tel. +66-35-330-588
Immermannstrasse 14-16, 40210 Dusseldorf, Germany
Head Office
Head Office
Head Office
Unit 13A1, 13th Floor, Ploenchit Tower,898 Ploenchit Road, Lumpini, Pathumwan,Bangkok 10330, Thailand
Tel. +66-2-263-0889/0890BangkokBranch
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Tel. +66-35-958-990AyutthayaFactory
Chicago, Detroit, Pittsburgh, San JoseOther Office
London, Milano, Paris, Leonberg, MunichOther Office
Seoul Branch
20, Hwajeonsandan 6-ro 102beon-gil,Gangseo-gu, Busan, 46738, Korea
Tel. +82-51-941-3933Busan Branch
2 Manhattanville Road, Suite 301,Purchase, NY 10577, U.S.A.
Tel. +49-211-16009-0
Tel. +1-914-694-9200
Tel. +81-3-6774-3320
12 Gul Avenue, Singapore 629656 Tel. +65-6861-7711
333, Gongdan 3-daero, Siheung-si, Gyeonggi-do, 15115, Korea
Tel. +82-31-319-3933
Head Office 800 East Ross Avenue P.O. Box 17010 Cincinnati, OH 45217, U.S.A.
Tel. +1-513-242-8900Diehl Tool Steel, Inc.