Индивидуальные китайские литые болты/гайки/Винты для литья под давлением

Product Overview

Description

Product Introduction of Die Casting Sand Casting Bolts/Nuts/Screws Casting Railway Fastener:

1. Material: Stainless Steel, Carbon Steel, Alloy Steel, like: SS304, SS316, 42CrMo4, 1Cr18Ni9Ti...
2. Process:  Lost Wax Casting, Investment Casting by sodium silicate or silica sol and CNC machine...
3. Size: as per drawing or sample from 0.01 kg-100kgs unit weight.
4. Surface: Zinc-Plated, Hot Dip Galvanized, Polish, Painting, Lightly Oiled...
5. Non-Destructive Test: Ultronsic Test, Magnetic Particle Testing, X-Ray Testing
6. Package: In pallet or as your requirement
7.Surface finish process:blacking/polishing/anodize/chrome/plating/zinc plating/nickel plating, tinting,etc.
8. Tolerance: 0.05mm-0.1mm
9 .Surface roughness: Ra0.8-1.6
10. Main equipment used: CNC machine, milling machine, machining center,drilling machine, cutting machine, grinding machine, tipping machine,etc.
11.Standard: IS, ASTM, DIN, BS, etc.
12.Casting process:Model making→Core making→Mold assembling→Pouring→Cleaning→Shot blasting→Machining
13.Inspection:We have a full set of quality control system to guarantee best product quality. Depending on the products, we can make different Item Testing Plan, Manufacturing procedure etc.
 
Quality control:
(1) Machinery properties and Chemical components testing after raw casting
(2) Hardness checking after heat treatment
(3) Dimensions testing after machining
(4) Quality control checks though all the following flow:
 
Drawings→ mould making →raw casting → sandblasting →rough machining or finish machining →surface treatment →product check→ packing →delivery strict
 
Service
(1) OEM and custom-made service.
(2) Full machining, primer painting, and surface treatment.
(3) Full material testing process.
(4) Quality control

STANDARD OF CHEMICAL COMPOSITION FOR STAINLESS STEEL MATERIAL(%)

Material	C	Si	Mn	P	S	Cr	Ni	Mo
AISI316	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	16.0-18.5	10.0-15.0	2.0-3.0
AISI304	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	17.0-20.0	8.0-12.0	-

 

Process	lnvestment casting, lost wax Casting, die casting, other customized process
Material	Alloy steels, Carbon Steel , Stainless steel, Malleable iron , Grey iron, Ductile iron Aluminum, Bronze etc.
Unit Weight	0.1kg-100kg
Finish	Plain,Nickel Plating , Chrome Plating or Polishing
Application	Automotive ,Mining, Railway, Construction equipment, Marine, Hardwares, Mining etc
Quality Control	CMM, Projection Machine, spectrometer, Hardness tester, Tensile tester etc.
Certificate	ISO 9001:2008
Standard	ASTM,DIN,ISO,BS,JIS