invisible defects - for bw pipe fittings purchasers
TRANSCRIPT
When you survey the plants, you always talk about the importance of QUALITY. However, PRICE influences you the
most when making the final purchasing decision. To negotiate with you, the moral suppliers will adhere to quality
bottom line. However, the dishonest suppliers will offer inferior products to you directly.
They cheat you due to following reasons:
1. Your budget is limited
2. You will not inspect the products strictly
3. Greedy for small advantages
4. You are unprofessional and will not find out the tricks they play
You have no right to complain because you bet:
1. Budget control is the only thing need to be considered
2. All the suppliers are honest. They will produce products formally.
3. “Every extra penny deserves its value “just a lie
4. The inferior products are blessed. The quality problem will not happen.
The cost to solve quality problems is much higher than buying products. When you blame the bad suppliers, have
you ever think:
You are the person who push them to be bad.
For them, as you drive the hard bargain without any reason, “CUT CORNERS” is the simplest way to earn your money.
how DEVIL was born
ZERO-SUM GAME between Purchaser and Supplier
Tachia Yung Ho Machine Industry will never ever participate in it !
Once you choose to join the devil side, it's impossible to be pure again.
Therefore, we will not abuse our professional knowledge to cut corners.
And we will try the best to escape from the price war. It has no end.
Quality is our responsibility. Pipe fittings quality relates to the safety.
Customers are our responsibilities. Your company reputation relates to our
products.
Social responsibility. Only steady companies can take good care of
employees.
Watch out! Too many choices may direct you to the traps. In
order to help you to find out the suppliers’ intrigues, we will share years of
our experience with you.
The corrosion resistance ability will be influenced by the
Residual Stress and HAZ(heat affected zone). It’s the reason
why the Solution Heat Treatment is the most important
procedure for producing SS pipe fittings.
We cooperate with Taiwan Industrial Technology Research
Institute to design and build the furnaces. The temperature
difference in the furnace is controlled in ±5˚C and the BW
fittings will be uniformly heated. In
addition, the soaking time and cooling water condition are monitored well by the computer
system.
However, many dishonest manufacturers only adopt
humble equipment which cannot execute the right heat
treatment operation or reduce the holding time to save costs.
As the fittings are not treated properly, the quality is
undoubtedly bad.
Compare to those fly-by-night manufacturers, we can
provide the related production/test records for every lot at
any time. It’s the reason why we can get customers’ trust.
Heat treatment – How about the CORROSION RESISTANCE of the pipe fittings?
Machining / Beveling- Is your 90˚ Long Elbow really 90˚?
Dishonest suppliers: poor machining skill / production facilities limits
dimensions are not precisely hard for using
YHMCO: Dedicated Beveling Machines / hundreds of molds
dimension meets to specification requests / strict inspection and record
easy for using
Welding -if the weld bead CRACKED……
Dishonest suppliers:
Welders’ skill is not certified
the storage and usage of welding material are not proper
provide X-ray reports without executing X-ray testing
YHMCO:
Welders get ASME IX certificates.
In-house : Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR)
Use and store the welding material reasonably according to SOP (YH-P-025)
(e.g. welding wires have to be kept in dry cabinet, place packing box directly on the ground is not allowed )
Provide both X-ray reports and films at the same time
Dishonest suppliers:
Disordered marks or material mix offer wrong products to customers
Finished products are scattered on the ground without proper protection
YHMCO:
Strict Stock in/out control
Organized Bin Location Management
Material control: color, steel marking and PMI (Positive Material Identification)
Inventory Management -you order 316L products but get 304 instead?
Chemical Composition-Stainless steel or Strange steel ?
Dishonest suppliers:
Adopt disqualified raw material which chemical / mechanical
properties don’t meet to the specification regulations.
YHMCO Inspect raw materials and finished products by spectrometer
provide products with correct steel grade
If the pipe fittings are made of by above methods, the appearance will not show any defects. You
think you get the cheap and good quality products. It is not true!
Maintain the equipment, renew the devices, gauge adjustments and employees training, all these
actions have to input cost. The decent suppliers will look for correct methods to save cost. The bad
suppliers always take jerry-built actions.
When wicked suppliers take QUALITY as wager, why do you risk company’s reputation to gamble
with him?
Terrible because of Invisible Defects
“Too cheap” is the signal of danger. Please be more careful when suppliers voluntarily offer
unreasonable benefits to you.
Self-Discipline
Except ISO 9001 Quality
Management System, we extend the
QC target to BW pipe weld fittings.
2007, we get JIS B 2312 and JIS B 2313
certificates which was qualified by the
Japan Quality Assurance Organization.
2013, we certified the JIS B 2309.
Actions speak louder than
words. We will keep improving
ourselves.
TWN0982004 TW03/01693
TWN0937519
JQTW07005
JQTW13002
* JIS B 2312: Steel butt-welding pipe fittings
JIS B 2313: Steel plate butt-welding pipe fittings
JIS B 2309: Butt -welding pipe fittings for light
gauge
stainless steel tubes for ordinary use
We care about quality more than you
Quality Can Not Be Treated Lightly
Adopt the highest inspection standard in the industry. To make sure the stainless steel pipe and plate
forming BW fittings can meet customers and international standard requests.
Raw Material Sawing Forming Heat Treatment
Sizing Beveling Pickling Storage Shipping
Acceptance Inspection
Final Inspection
Shipping Inspection Inspection between Processes
( first article + independent )
- Operating Conditions, - Appearance,- Die Marking, - Template Matching
- Operating Conditions- Appearance- OD, ID- Thickness
- Soak Temperature - Time Control- Hardness
- Operating Conditions- Appearance- Weld Bead- OD (Roundness)
- Operating Conditions- Appearance - OD,ID, Thickness- Height - Center Distance- Off Angle, Root Face- Beveling Ends
- Operating Conditions- Appearance- Sample Comparison
- Markings- Quantity
- Marking Contents/ Positions- Packing Quantities - Appearance
Items
“YHMCO” has its own laboratory. And all the fixtures, devices and equipment are maintained and
calibrated regularly. We also cooperate with qualified outsourced laboratory; therefore we can test the pipe
fittings and offer the reports to customers who have needs.
@ Above tests will be conducted according to customers’ needs
Items Purpose
Tensile Test To check the effectiveness and behavior of material when a stretching force acts on it
Hardness Test resistance to deformation
Bending Test resistance to bending
PMI Chemical Composition
Ultrasonic Test Wall Thickness
X-ray Weld Bead quality
Impact Test the resistance of a material to rapidly sudden applied loads.
IGC Test (Intergranular corrosion)
Corrosion resistance ability
Hydrostatic Test Test pipe fittings for strength and leaks
Liquid Penetration Test Check the surface quality (No cracks)
Metallographic Analysis Check the physical structure and components of metals
Since its establishment from 1969, we witnessed
many companies get succeed and failed. Just one
wrong idea will result the company in decline.
"Profits" is the basis of sustainable operation.
Every company should try their best to make money.
However, if you can’t acquire wealth with the right
ways, you will fail at the last. It is the most important
idea that our founder Huang Qing-Nian had taught
us.
To keep the quality in the stable and good level
costs a lot. However, we will continue to look for the
balance between business interests and corporate
social responsibility. On the way of being a
righteousness enterprise, we will keep working hard
just like you.