Jtp Mould is known as one of the best manufacturers and exporters for plastic injection moulds for household articles, chair mould, pallet mould, crate mould, automotive mould and so on. Our moulds are mainly exported to Philippines, Italy, Australia, Saudi Arabia, Jordan, Argentina, Colombia, India, Malaysia, Philippines and other 20 countries.
JTP MOULD is devoting itself to make high quality moulds for PET perform mould. All the material we choose for PET perform mould are high standard, such as Sweden S136, German 2316 stainless steel.
Please see our specifications for PET Preform mould:
1. Core & cavity: Hardness HRC: 48- 50
2. Material: Stainless steel ASSAB S136 from Sweden, Highly glossy surface finish.
3. Unique layout of cooling guarantees the better cooling effect.
4. Nozzle: Nozzle Material: Beryllium Copper. HRC: 500
5. Nozzle House Material: SKD61
6. New structure Nozzle housing has accurate heater transfer.
7. Insulator: Dupont Brand material from USA.
8. Valve pin: HRC: 59- 61.
9. Material: SKD51 (Supplied by Japan Punch company)
10. High hardness, High ductility, High grinding resistance and High heat resistance.
11. Mini coil heater: Voltage: 230V, wattage: 500W
12. ID: 22mm, L: 45mm;
13. Mini coil heater supplied by Italy Rotfil Company. Stable working, energy saving.
1. More information about for gas/water use plastic PET preform mould
Name: For gas/water use plastic PET preform mould
Mould material: DIN 2316, S136 etc
Cavity: Multi-cavities
Shaping Mode: Plastic Injection Mould
Runner: Hot runner
Mould design: 3D/2D
Design days: 3-5 days
Mould life: 1million shots
Plastic material: PET
Injection system: Fully automatic
Steel hardness: 36-52HRC(according to different steel)
Payment: 40% of deposit by L/C T/T 60% of balance by L/C T/T
Delivery time: 45-50 days
Specification: Depends on customers' demand
2. Order Process For Mould From JTP mould
Stage 1
Make product design drawing as per original sample or customer's concept
Get machine specs from buyer
Plan mould specification
Stage 2
Make mould drawings according to the buyer's requirments & machine specs.
Approval of mould drawings by the buyer's
Stage 3
Order steel & standard parts and start machining work on core, cavity & mould base
Fitting, adjusting, polishing
Detailing & Assembly
Stage 4
First trial -To check mould injection dimensions, fittings and mark corrections
Second trial-Detailed inspection, corrections
Stage 5
Send mould testing video & photos to the buyer
Send trial samples by courier to customer and take approval
After do final corrections, do final trial-inspection
Stage6
Pack moulds with wooden case
Delivery mould by sea or by air
3. Our main business line
1) Household moulds: Plastic chair, table, buckets, laundry basket, trash bin, kitchenware, plastic sanitary ware mould, plastic container mould, etc.
2) Industrial moulds: Pallet mould, crate mould, paint container mould, plastic industrial part mould, plastic dustbin mould, etc.
3) Thin wall moulds: Thin wall cup, thin wall tablewares, etc.
4) Pipe fitting moulds: PPR pipe fittings, PE, PVC pipe fittings.
5) Packaging moulds: Blowing mould, pet bottle mould, Cap mould, etc.
6) Other mould: Syringe mould, Medical plastic mould, Other OEM mould
4. Our advantages
Professional plastic mould maker
Exported to many countries
Detailed production schedule
Punctual delivery
Good After-sale service
5. Offers you
Response on Email, telephone calls or fax in-time
Supply the quotation and mould designs in-time
Communication on the technical points in-time
Sending pictures for the mould machining progress and mould finishing Schedule in-time
Mould test and sample delivery in-time
Some carbon steel SAW electrodes may not consistently provide weld metal with required minimum strengths when postweld heat treatment (PWHT) is specified, and controlled alloying with Mn and Mo will achieve minimum tensile and maximum hardness limits although, with welds not subject to PWHT, Mn and Mo additions may at times be undesirable for adequate corrosion resistance.
Carbon steel welds exposed to wet hydrogen sulfide service are susceptible to cracking when the weld metal tensile strength and hardness are excessive. Whereas lower strength and softer weld deposits are resistant to wet H2S cracking, such welds may not have adequate tensile strength to satisfy design requirements. This paper provides background information on the subject of tensile strength and resistance to wet H2S cracking of carbon steel sub-merged arc welds obtained from reviewing industrial practices, applicable codes, technical society recommendations and technical literature.
A series of tests was conducted to determine the effect of postweld heat treatment on the strength and hardness of various types of carbon steel submerged arc weld metal. Test results showed that some commonly employed carbon steel submerged arc welding electrodes may not consistently provide weld metal of required minimum tensile strength when post-weld heat treatment is specified.
Further tests indicated that both minimum tensile and maximum hardness limits can be achieved by controlled alloying with both manganese and molybdenum. However, for welds not subject to any postweld heat treatment operation, these alloy additions are not needed to meet the tensile requirements and may at times be undesirable for adequate corrosion resistance.
This paper also discusses the need to modify the present classification system for carbon steel and low alloy submerged arc welding consumables.
Introduction
It seems appropriate that flux electrode combinations selected for sub-merged arc welds should produce weld metal properties that meet the minimum requirements of the base metal to be joined. In the case of pressure vessels fabricated for the petroleum and chemical process industries, tensile strength and corrosion resistance are of primary concern. Of major concern is corrosion in wet hydrogen sulfide environments. There are indications that attempts to achieve optimum tensile strength and corrosion resistance can create a conflict. While high strength weld deposits are more susceptible to wet H2S cracking than lower strength or softer welds, some of the soft weld deposits demanded by the corrosion engineer may not meet minimum tensile strength requirements demanded by the vessel designer.
This paper reviews existing industrial practices, applicable codes, technical society recommendations and other references addressing tensile strength and resistance to wet H2S cracking of carbon steel submerged arc welds. The review is augmented by a series of tests conducted to deter-mine how heat treatment influences these properties. This provided the possibility to better understand some of the welding variables, to optimize material selection and to recommend changes in existing industry standards and recommended practices.
Consumables for Submerged Arc Welding
Submerged arc welding electrodes and fluxes are usually classified on the basis of American Welding Society
Specifications AWS A5.171 and AWS A5.23.2 These documents include chemistry limits for various solid wire electrodes. To complete the designation for the submerged arc welding consumables, fluxes have been classified on the basis of minimum tensile strength and minimum notch ductility when employed in conjunction with specific Welding Wires.
This paper reviews existing industrial practices, applicable codes, technical society recommendations and other references addressing tensile strength and resistance to wet H2S cracking of carbon steel submerged arc welds. The review is augmented by a series of tests conducted to determine how heat treatment influences these properties. This provided the possibility to better understand some of the welding variables, to optimize material selection and to recommend changes in existing industry standards and recommended practices.
Consumables for Submerged Arc Welding
Submerged arc welding electrodes and fluxes are usually classified on the basis of American Welding Society
Specifications AWS A5.171 and AWS A5.23.2 These documents include chemistry limits for various solid wire electrodes. To complete the designation for the submerged arc welding consumables, fluxes have been classified on the basis of minimum tensile strength and minimum notch ductility when employed in conjunction with specific welding wires.
Tensile Strength vs. Corrosion Resistance
It is not the intention of this paper to evaluate or question whether the 200
BHN hardness limit provides optimum protection in a wet H2S environment. However, this paper does question whether the minimum specified tensile strength can be achieved in production without exceeding the chemistry limits recommended by the API and NACE documents.
A summary of many ASME procedure qualifications using double-welded joints shown in Fig. 1 B met both the minimum tensile strength of 70,000 psi (485 MPa) and the maximum hardness requirement of 200 BHN. When required to meet this minimum tensile strength, some fabricators selected EM12K wire electrode and neutral or near neutral flux for "as-welded" and "postweld heat treated" joints.
properties where the base material dilution contributes little to the de-posit chemistry, this paper has subdivided carbon steel fabrication into four basic "applications" (applications # 1 to # 4 in Table 2). These are grouped on the basis of minimum tensile strengths and postweld heat treatment requirements as shown in Table 2. Each of the four applications is reviewed in this paper with special emphasis on application # 4 for which little specific information could be located in the published literature.
Carbon Steel Submerged Arc Welding Wire
Carbon Steel Submerged Arc Welding Wire,Submerged Arc Welding Wire
Changzhou Edaweld Trading Company Limited , https://www.edaweld.com